Dissertations / Theses on the topic 'Arithmetic geometry'
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Aghasi, Mansour. "Geometry of arithmetic surfaces." Thesis, Durham University, 1996. http://etheses.dur.ac.uk/5270/.
Full textSelander, Björn. "Arithmetic of three-point covers." Doctoral thesis, Uppsala universitet, Matematiska institutionen, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7497.
Full textMorrow, Matthew Thomas. "Investigations in two-dimensional arithmetic geometry." Thesis, University of Nottingham, 2009. http://eprints.nottingham.ac.uk/11016/.
Full textMartinez, Metzmeier César. "Two problems in arithmetic geometry. Explicit Manin-Mumford, and arithmetic Bernstein-Kusnirenko." Thesis, Normandie, 2017. http://www.theses.fr/2017NORMC224/document.
Full textIn the first part of this thesis we present sharp bounds on the number of maximal torsion cosets in a subvariety of a complex algebraic torus $(\mathbb{C}^{\times})^n$ and of an Abelian variety. In both cases, we give an explicit bound in terms of the degree of the defining polynomials and the ambient variety. Moreover, the dependence on the degree of the polynomials is sharp. In the case of the complex torus, we also give an effective bound in terms of the toric degree of the subvariety. As a consequence of the latter result, we prove the conjectures of Ruppert, and Aliev and Smyth on the number of isolated torsion points of a hypersurface. These conjectures bound this number in terms of the multidegree and the volume of the Newton polytope of a polynomial defining the hypersurface, respectively.In the second part of the thesis, we present an upper bound for the height of isolated zeros, in the torus, of a system of Laurent polynomials over an adelic field satisfying the product formula. This upper bound is expressed in terms of the mixed integrals of the local roof functions associated to the chosen height function and to the system of Laurent polynomials. We also show that this bound is close to optimal in some families of examples. This result is an arithmetic analogue of the classical Bern\v{s}tein-Ku\v{s}nirenko theorem
Paajanen, Pirita Maria. "Zeta functions of groups and arithmetic geometry." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419325.
Full textJi, Shujuan Ramakrishnan Dinakar Ramakrishnan Dinakar. "Arithmetic and geometry on triangular Shimura curves /." Diss., Pasadena, Calif. : California Institute of Technology, 1995. http://resolver.caltech.edu/CaltechETD:etd-10052007-134336.
Full textKaba, Mustafa Devrim. "On The Arithmetic Of Fibered Surfaces." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613674/index.pdf.
Full texts conjectures, for a certain class of algebraic surfaces. The surfaces we are interested in are assumed to be defined over a number field, have irregularity two and admit a genus two fibration over an elliptic curve. In the final chapter of the thesis we prove the isomorphism of the Picard motives of an arbitrary variety and its Albanese variety.
Camara, Alberto. "Interaction of topology and algebra in arithmetic geometry." Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/13247/.
Full textYang, Wenzhe. "The arithmetic geometry of mirror symmetry and the conifold transition." Thesis, University of Oxford, 2018. http://ora.ox.ac.uk/objects/uuid:e55a7b22-a268-4c57-9d98-c0547ecdcef9.
Full textLee, Chih-kuo. "Robust evaluation of differential geometry properties using interval arithmetic techniques." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/33565.
Full textIncludes bibliographical references (p. 79-82).
This thesis presents a robust method for evaluating differential geometry properties of sculptured surfaces by using a validated ordinary differential equation (ODE) system solver based on interval arithmetic. Iso-contouring of curvature of a Bezier surface patch. computation of curvature lines of a Bezier surface patch and computation of geodesics of a Bezier surface patch are computed by the Validated Numerical Ordinary Differential Equations (VNODE) solver which employs rounded interval arithmetic methods. Then. the results generated from the VNODE program are compared with the results from Praxiteles code which uses non-validated ODE solvers operating in double precision floating point arithmetic for the solution of the same problems. From the results of these experiments, we find that the VNODE program performs these computations reliably, but at increased computational cost.
by Chih-kuo Lee.
S.M.
Lazda, Christopher David. "Rational homotopy theory in arithmetic geometry : applications to rational points." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/24707.
Full textVonk, Jan Bert. "The Atkin operator on spaces of overconvergent modular forms and arithmetic applications." Thesis, University of Oxford, 2015. http://ora.ox.ac.uk/objects/uuid:081e4e46-80c1-41e7-9154-3181ccb36313.
Full textTurchetti, Danièle. "Contributions to arithmetic geometry in mixed characteristic : lifting covers of curves, non-archimedean geometry and the l-modular Weil representation." Thesis, Versailles-St Quentin en Yvelines, 2014. http://www.theses.fr/2014VERS0022/document.
Full textIn this thesis, we study the interplay between positive and zero characteristic. In a first instance, we deal with the local lifting problem of lifting actions of curves. We show necessary conditions for the existence of liftings of some actions of Z/pZ x Z/pZ. Then, for an action of a general finite group, we study the associated Hurwitz tree, showing that every Hurwitz tree has a canonical metric embedding in the Berkovich closed unit disc, and that the Hurwitz data can be described analytically.In the last chapter, we define an analog of the Weil representation with coefficients in an integral domain, showing that such representation satisfies the same properties than in the case with complex coefficients
Levitt, Benjamin L. "Tate-Shafarevich Groups of Jacobians of Fermat Curves." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/193812.
Full textQ(zeta) and k_S be the maximal extension of k unramified away from p inside a fixed algebraic closure of k. We produce a formula for the image of certain coboundary maps in group cohomology given in terms of Massey products, applicable in a general setting. Under specific circumstance, stated precisely below, we can use this formula and a pairing in the Galois cohomology of k_S over k studied by W. McCallum and R. Sharifi to produce non-trivial elements in the Tate-Shafarevich group of J. In particular, we prove a theorem for predicting when the image of certain cyclotomic p-units in the Selmer group map non-trivially into Shah(k,J).
Mohammed, Dilbak. "Generalised Frobenius numbers : geometry of upper bounds, Frobenius graphs and exact formulas for arithmetic sequences." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/98161/.
Full textKnapp, Greg. "Minkowski's Linear Forms Theorem in Elementary Function Arithmetic." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1495545998803274.
Full textTyler, Michael Peter. "On the birational section conjecture over function fields." Thesis, University of Exeter, 2017. http://hdl.handle.net/10871/31600.
Full textTsujimura, Shota. "Combinatorial Belyi Cuspidalization and Arithmetic Subquotients of the Grothendieck-Teichmüller Group." Kyoto University, 2020. http://hdl.handle.net/2433/253067.
Full textSvensson, Cecilia. "Taluppfattningens betydelse för elevers matematiska utveckling : En kvantitativ studie i åk 2 av sambandet mellan elevers taluppfattning och deras kunskapsnivå inom aritmetik respektive geometri." Thesis, Karlstads universitet, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-68945.
Full textAbstracts The aim of this study is to investigate the importance of students’ number sense on their geometry and arithmetic skills. The analyzes are based on comparisons of results, from tests in the regular teaching within the two mathematical branches, arithmetic and geometry, and the results from a test, for determining the students’ number sense, that was developed within this study. The survey method used to measure number sense skills were quantitative interviews, where 30 students in grade 2 participated. The interviews were designed as a math conversation based on an interview guide adapted for the age group concerned. The students gathered points by solving tasks at different levels of difficulty. The results were then compiled into an overall result. The results of the three tests were analyzed using statistical tools such as, point diagrams and determination of correlation coefficients. A positive correlation was demonstrated for the correlation between the result the students achieved in the test of number sense and their results in the tests in both arithmetic and geometry. The correlation in this study is stronger for the relationship number sense / geometry, correlation factor 0.73, than for the number sense / arithmetic, correlation factor 0.50. Through the positive correlation that is shown, the findings support the perception that number sense is of major importance to the students’ mathematical development, and this study showed that this relationship is valid not only in the pure counting skills, as arithmetic, but also for skills in geometry.
Weinstein, Madeleine. "Adinkras and Arithmetical Graphs." Scholarship @ Claremont, 2016. http://scholarship.claremont.edu/hmc_theses/85.
Full textHigashiyama, Kazumi. "The semi-absolute anabelian geometry of geometrically pro-p arithmetic fundamental groups of associated low-dimensional configuration spaces." Kyoto University, 2019. http://hdl.handle.net/2433/242582.
Full textPatel, Nirav B. "Voronoi diagrams robust and efficient implementation /." Diss., Online access via UMI:, 2005.
Find full textPancratz, Sebastian Friedrich. "Practical improvements to the deformation method for point counting." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:b3a3d42c-203a-41ff-be1c-27f1018db3c8.
Full textWills, Michael Thomas. "Computing the trace of an endomorphism of a supersingular elliptic curve." Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/103821.
Full textMaster of Science
The developing technology of quantum computers threatens to render current cryptographic systems (that is, systems for protecting stored or transmitted digital information from unauthorized third parties) ineffective. Among the systems proposed to ensure information security against attacks by quantum computers is a cryptographic scheme known as SIKE. In this thesis, we provide and analyze an algorithm that comprises one piece of a potential attack against SIKE by a classical computer. The given algorithm is also useful more generally in the field of arithmetic geometry.
Wang, Xiaozong. "On the Bertini theorem in Arakelov geometry." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASM015.
Full textThe purpose of this thesis is to study the geometric properties of the arithmetic varieties. More precisely, we are interested in the existence of regular projective subschemes of a regular projective arithmetic variety. First we extend a result of Poonen. In particular, we prove that given a smooth projective variety X over a finite field and an ample line bundle L on X, the proportion of global sections of L⊗d which has a smooth divisor tends to ζx(1+dim X)⁻¹ when d tends to infinity. Then we show that for a regular projective arithmetic variety X equipped with an ample hermitian line bundle L, the proportion of global sections of supremum norm strictly smaller than 1 of L⊗d whose divisor does not have a singular point on the fiber Xp over any prime p ≤ eᵋᵈ tends to ζx(1+dim X)⁻¹ as d tends to infinity
Giovenzana, Franco [Verfasser], Christian [Akademischer Betreuer] Lehn, Christian [Gutachter] Lehn, Nicolas [Gutachter] Addington, and Paolo [Gutachter] Stellari. "Geometry and Arithmetic of the LLSvS Variety / Franco Giovenzana ; Gutachter: Christian Lehn, Nicolas Addington, Paolo Stellari ; Betreuer: Christian Lehn." Chemnitz : Technische Universität Chemnitz, 2021. http://d-nb.info/1230984054/34.
Full textDerenthal, Ulrich. "Geometry of universal torsors." Doctoral thesis, [S.l.] : [s.n.], 2006. http://webdoc.sub.gwdg.de/diss/2006/derenthal.
Full textSmith, Benjamin Andrew. "Explicit endomorphisms and correspondences." University of Sydney, 2006. http://hdl.handle.net/2123/1066.
Full textIn this work, we investigate methods for computing explicitly with homomorphisms (and particularly endomorphisms) of Jacobian varieties of algebraic curves. Our principal tool is the theory of correspondences, in which homomorphisms of Jacobians are represented by divisors on products of curves. We give families of hyperelliptic curves of genus three, five, six, seven, ten and fifteen whose Jacobians have explicit isogenies (given in terms of correspondences) to other hyperelliptic Jacobians. We describe several families of hyperelliptic curves whose Jacobians have complex or real multiplication; we use correspondences to make the complex and real multiplication explicit, in the form of efficiently computable maps on ideal class representatives. These explicit endomorphisms may be used for efficient integer multiplication on hyperelliptic Jacobians, extending Gallant--Lambert--Vanstone fast multiplication techniques from elliptic curves to higher dimensional Jacobians. We then describe Richelot isogenies for curves of genus two; in contrast to classical treatments of these isogenies, we consider all the Richelot isogenies from a given Jacobian simultaneously. The inter-relationship of Richelot isogenies may be used to deduce information about the endomorphism ring structure of Jacobian surfaces; we conclude with a brief exploration of these techniques.
Smith, Benjamin Andrew. "Explicit endomorphisms and correspondences." Thesis, The University of Sydney, 2005. http://hdl.handle.net/2123/1066.
Full textDogra, Netan. "Topics in the theory of Selmer varieties." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:2a1b0c3f-7f84-44e8-b7a3-80ff37a8b5f8.
Full textHaydon, James Henri. "Étale homotopy sections of algebraic varieties." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:88019ba2-a589-4179-ad7f-1eea234d284c.
Full textFeijó, Rafael Godolphim. "O intuicionismo Kantiano à Luz do Logicismo e do Cognitivismo: Uma defesa da intuição pura do espaço e do tempo." Universidade do Vale do Rio dos Sinos, 2017. http://www.repositorio.jesuita.org.br/handle/UNISINOS/6390.
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CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
FAPERGS - Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul
A filosofia kantiana da matemática é fundamentada sobre uma estrutura epistemológica intuicionista. As categorias do espaço e do tempo constituem as formas da sensibilidade, formas estas manifestadas por meio de uma intuição pura a priori. O presente trabalho busca realizar uma defesa razoável de tal intuição frente aos críticos contemporâneos, os quais propõem um programa logicista desprovido de estrutura epistêmica no que tange ao raciocínio matemático. Tais críticos afirmam que a aritmética não necessita da intuição pura do tempo para que as operações numéricas possam ser realizadas. Buscaremos demonstrar que a lógica quantificacional constitui um expediente meramente formalista que deixa de lado os problemas epistemológicos da cognição matemática e, por esse motivo, pode ambicionar desconsiderar a intuição pura kantiana. Portanto, buscaremos demonstrar que a intuição pura kantiana ainda pode lançar luz sobre a natureza dos cálculos da matemática.
The Kantian philosophy of mathematics is based on an intuitionist epistemological structure. The categories of space and time are the forms of sensibility, these forms manifested through a pure intuition a priori. The present work seeks to make a reasonable defense of such intuition in the face of contemporary critics, who propose a logicist program devoid of epistemic structure regarding mathematical reasoning. Such critics claim that arithmetic does not need the pure intuition of time for numerical operations to be performed. We will try to demonstrate that the quantificational logic constitutes a merely formalistic expedient that leaves aside the epistemological problems of the mathematical cognition and, for this reason, it can ambition to disregard the pure Kantian intuition. Therefore, we shall try to demonstrate that pure Kantian intuition can still shed light on the nature of mathematical calculations.
Borenstein, Evan. "Additive stucture, rich lines, and exponential set-expansion." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29664.
Full textCommittee Chair: Croot, Ernie; Committee Member: Costello, Kevin; Committee Member: Lyall, Neil; Committee Member: Tetali, Prasad; Committee Member: Yu, XingXing. Part of the SMARTech Electronic Thesis and Dissertation Collection.
Gunawan, Albert. "Gauss's theorem on sums of 3 squares sheaves, and Gauss composition." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0020/document.
Full textGauss's theorem on sums of 3 squares relates the number of primitive integer points on the sphere of radius the square root of n with the class number of some quadratic imaginary order. In 2011, Edixhoven sketched a different proof of Gauss's theorem by using an approach from arithmetic geometry. He used the action of the special orthogonal group on the sphere and gave a bijection between the set of SO3(Z)-orbits of such points, if non-empty, with the set of isomorphism classes of torsors under the stabilizer group. This last set is a group, isomorphic to the group of isomorphism classes of projective rank one modules over the ring Z[1/2, √- n]. This gives an affine space structure on the set of SO3(Z)-orbits on the sphere. In Chapter 3 we give a complete proof of Gauss's theorem following Edixhoven's work and a new proof of Legendre's theorem on the existence of a primitive integer solution of the equation x2 + y2 + z2 = n by sheaf theory. In Chapter 4 we make the action given by the sheaf method of the Picard group on the set of SO3(Z)-orbits on the sphere explicit, in terms of SO3(Q)
De stelling van Gauss over sommen van 3 kwadraten relateert het aantal primitieve gehele punten op de bol van straal de vierkantswortel van n aan het klassengetal van een bepaalde imaginaire kwadratisch orde. In 2011 schetste Edixhoven een ander bewijs van deze stelling van Gauss metbehulp van aritmetische meetkunde. Hij gebruikte de actie van de special orthogonale groep op de bol en gaf een bijectie tussen de verzameling van SO3(Z)-banen van dergelijke punten, als die niet leeg is, met de verzameling van isomor_e klassen van torsors onder de stabilisator groep. Deze laatste verzameling is een groep, isomorf met de groep van isomor_e klassen van projectieve rang _e_en modulen over de ring Z[1/2, √- n]. Dit geeft een a_ene ruimte structuur op de verzameling van SO3(Z)-banen op de bol. In Hoofdstuk 3 geven we een volledig bewijs van de stelling van Gauss zoals geschetst door Edixhoven, en een nieuw bewijs van Legendre's stelling over het bestaan van een primitieve gehele oplossing van de vergelijking x2 +y2 +z2 = n met schoven theorie. In hoofdstuk 4 maken we de werking gegeven door de schoven theorie van de Picard groep op de verzameling van SO3(Z)-banen op de bol expliciet, in termen van SO3(Q)
Huang, Zhizhong. "Distribution asymptotique fine des points de hauteur bornée sur les variétés algébriques." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAM036/document.
Full textThe study of the distribution of rational points on algebraic varieties is a classic subject of Diophantine geometry. The program proposed by V. Batyrev and Y. Manin in the 1990s gives a prediction on the order of growth whereas its later version due to E. Peyre conjectures the existence of a global distribution. In this thesis we propose a study of the local distribution of rational points of bounded height on algebraic manifolds. This aims at giving a description finer than the global one by counting the points closest to a fixed point. We set ourselves on the recent framework of the work of D. McKinnon and M. Roth who prefers that the geometry of the variety governs the Diophantine approximation on it and we take up the results of S. Pagelot. The expected order of growth and the existence of an asymptotic measure on some toric surfaces are demonstrated, while we demonstrate a totally different result for another surface on which there is no asymptotic measure and the best generic approximates are obtained on nodal rational curves. These two phenomena are of a radically different nature from the point of view of the Diophantine approximation
Batista, Maria Betania Soares da Silva. "Geometria e aritm?tica numa vis?o multicultural: uma experi?ncia pedag?gica." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16096.
Full textCoordena??o de Aperfei?oamento de Pessoal de N?vel Superior
This paper aims to build a notebook of activities that can help the teacher of elementary school mathematics. Topics covered are arithmetic and geometry and the activities proposed here were developed aiming print them a multicultural character. We take as a base line developed by Claudia Zaslavsky multiculturalism and reflected in his books "Games and activities worldwide" and "More games and activities worldwide." We structure our work around four themes: the symbol of the Olympic Games, the pyramids of Egypt, the Russian abacus abacus and Chinese. The first two themes allow you to explore basic concepts of geometry while the latter two themes allow us to explore numerical notation and arithmetic operations
O presente trabalho tem como objetivo a constru??o de um caderno de atividades que possa auxiliar o professor de matem?tica do ensino fundamental. Os t?picos abordados s?o geometria e aritm?tica sendo que as atividades aqui propostas foram desenvolvidas buscando imprimir nelas um car?ter multicultural. Tomamos como base a linha de multiculturalismo desenvolvida por Claudia Zaslavsky e refletida em seus livros Jogos e atividades do mundo inteiro e Mais jogos e atividades do mundo inteiro . Estruturamos nosso trabalho em torno de quatro temas: o s?mbolo dos jogos ol?mpicos, as pir?mides do Egito, o ?baco russo e o ?baco Chin?s. Os dois primeiros temas permitem explorar conceitos b?sicos da geometria enquanto que os dois ?ltimos temas nos possibilitam explorar nota??o num?rica e opera??es aritm?ticas
Fox, Maria. "TheGL(4) Rapoport-Zink Space:." Thesis, Boston College, 2019. http://hdl.handle.net/2345/bc-ir:108374.
Full textThis dissertation gives a description of the GL(4) Rapoport-Zink space, including the connected components, irreducible components, intersection behavior of the irreducible components, and Ekedahl-Oort stratification. As an application of this, this dissertation also includes a description of the supersingular locus of the Shimura variety for the group GU(2,2) over a prime split in the relevant imaginary quadratic field
Thesis (PhD) — Boston College, 2019
Submitted to: Boston College. Graduate School of Arts and Sciences
Discipline: Mathematics
Munoz, Bertrand Ruben. "Coefficients en cohomologie de De Rham-Witt surconvergente." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMC205.
Full textUnder a few assumptions, we prove an equivalence of category between a subcategory of F-isocristals on a smooth algebraic variety and overcongergent integrable De Rham-Witt connections. We do so by giving an equivalent definition of overconvergence, and by studying the explicit local structure of the De Rham-Witt complex
Hachami, Saïd. "Périodes hermitiennes des courbes et application à une formule de chowla-selberg." Nancy 1, 1988. http://www.theses.fr/1988NAN10142.
Full textSavel, Charles. "Sur la dimension de certaines variétés de Kisin : le cas de la restriction des scalaires de GLd." Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1S072/document.
Full textGiven a p-torsion representation of the absolute Galois group of a p-adic field, M. Kisin defines a moduli space, which was named Kisin variety afterwards by G. Pappas and M. Rapoport. These varieties were first introduced in order to prove several modularity results on Galois representations. They were also used for constructing certain Galois deformation rings and computing some of them. Besides, they were involved in a recent work aiming at defining an algebraic structure on the stack of torsion Galois representations. It turns out that these varieties are formally similar to affine Deligne-Lusztig varieties. In particular their definition extends to the framework of reductive groups. In this thesis, we study the dimension of some Kisin varieties corresponding to the scalar restriction of the general linear group GLd. Inspired by methods coming from Deligne-Lusztig theory and following works by E. Viehmann and X. Caruso, we define a stratification on the given Kisin variety. Then we bound from below and from above the dimension of the strata, and we address the problem of maximizing the dimension over all strata. This allows us to derive the announced bounds on the dimension. As for affine Deligne-Lusztig varieties, the sum of the positive roots appears in the bounds
Tavenas, Sébastien. "Bornes inférieures et supérieures dans les circuits arithmétiques." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2014. http://tel.archives-ouvertes.fr/tel-01066752.
Full textSilva, Lilian Esquinelato da [UNESP]. "Ensino intradisciplinar de Matemática através da resolução de problemas: o caso do Algeblocks." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/154125.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Esta pesquisa tem como objetivo investigar como o material manipulativo Algeblocks e a Metodologia de Ensino–Aprendizagem–Avaliação de Matemática através da Resolução de Problemas contribuem para o Ensino Intradisciplinar. Esta pesquisa foi desenvolvida seguindo a Metodologia Científica de Romberg–Onuchic, apresentada por Onuchic e Noguti (2014). A fundamentação teórica desta pesquisa tem como base três variáveis-chave: Conexões no Ensino de Matemática, Materiais Manipulativos e Resolução de Problemas. Procuramos investigar pesquisas que trabalham o ensino de Matemática fazendo conexões entre diferentes ramos da Matemática e as contribuições do Algeblocks para o desenvolvimento do projeto pedagógico de Matemática, ao adotar a Metodologia de Ensino–Aprendizagem–Avaliação de Matemática através da Resolução de Problemas. Para tanto, estabelecemos como procedimentos da pesquisa a elaboração de um Projeto Pedagógico e sua aplicação em uma turma de 8º ano do Ensino Fundamental de uma escola estadual da rede pública de ensino da cidade de Rio Claro - SP. Esse Projeto envolve o Ensino–Aprendizagem–Avaliação de Matemática com uso dos Algeblocks trabalhando a compreensão de conceitos matemáticos. Percebemos que o trabalho do professor de Matemática ao fazer uso da Metodologia de Ensino–Aprendizagem–Avaliação de Matemática através da Resolução de Problemas dá a possibilidade, com o uso do Algeblocks, de trabalhar conceitos matemáticos realizando as conexões entre diferentes ramos da Matemática.
This research aims to investigate how the Algeblocks manipulative and Methodology of Mathematics Teaching-Learning-Evaluation through Problem Solving contribute to Intradisciplinary Teaching. This research was developed following the Scientific Methodology of Romberg–Onuchic presented by Onuchic and Noguti (2014). The theoretical basis of this research is based on three key variables: Connections in Teaching Mathematics, Manipulative Materials and Problem Solving. We seek to investigate researches that work the teaching of Mathematics making connections between different branches of Mathematics and the contributions of the Manipulative Material for the development of learning of Mathematics by adopting the Methodology of Mathematics Teaching-Learning-Evaluation through Problem Solving. Therefore, we established as research procedures the elaboration of a Project and its application in an 8th grade class of Elementary School of a state school of the public school of the city of Rio Claro - SP. This Project involves the teaching-learning-evaluation of Mathematics with use of the Algeblocks making the concrete representations of abstract concepts. We realized that the work of the Mathematics teacher in making use of the Methodology of Teaching-Learning-Evaluation of Mathematics through Problem Solving gives the possibility, with the use of Algeblocks, of working mathematical concepts making the connections between the different branches of Mathematics.
CNPq: 132559/2016-1.
Selander, Björn. "Arithmetic of three-point covers /." Uppsala : Department of Mathematics, Univ. [distributör], 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7497.
Full textDissa, Sinaly. "Entre arithmétique et géométrie discrète, une étude épistémologique et didactique du théorème de Bézout et du théorème de Pick." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALM008.
Full textThis thesis studies the problem of changing registers in mathematics education. More specifically,we have chosen to study the registers of the continuous and the discrete with interactions in thefields of arithmetic and geometry.This thesis shows, in particular, that "classic" adidactic / didactic situations do not allow suchinteractions to be implemented.We have shown, moreover, that there is a pervasiveness of the continuous in the conceptions of thestudents and even a resistance to consider the discreet. Our experiments were carried out withundergraduate mathematics students and trainers.Our first engineering deals with the study of whole points of a line of the plane. It highlighted theobstacle to recognizing a geometric characterization of the solutions of the Bézout equation(existence and exhaustiveness).This shows that in order to overcome this obstacle of changing registers, it is necessary to propose amore “open” type of situation concerning an epistemologically consistent mathematical problem.In this thesis, we studied the possibility of devolving a change in arithmetic / geometry register inthe context of "Research Situation for the Class". This is one of the objectives of our secondengineering covering the area of whole vertex polygons (with reference to Pick's theorem).Two pre-experiments made it possible to define the conditions for taking into account the discreteregister for a question relating to geometry.We have built a final experiment taking these conditions into account.The didactic analysis of the situation on Pick allows us to affirm that, on the one hand, the SiRCmodel is suitable for the engineering of situations of change of registers. On the other hand, it alsoshows that arithmetic and geometry are relevant mathematical domains for register interactions andwork on proof and reasoning.Among the conditions for proper devolution of registry changes, the nature of the question plays anessential role. We chose in engineering on the Pick problem to ask to search for a "method" or"formula" without specifying the variables and registers concerned.Our experience has shown that this type of question has enabled the development of many strategiesidentified in the mathematical analysis of the problem
Seymour, David. "Exact rational arithmetic for geometric computation." Thesis, Cranfield University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387624.
Full textLe, Rudulier Cécile. "Points algébriques de hauteur bornée." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S073/document.
Full textThe study of the distribution of rational or algebraic points of an algebraic variety according to their height is a classic problem in Diophantine geometry. In this thesis, we will be interested in the asymptotic cardinality of the set of algebraic points of fixed degree and bounded height of a smooth Fano variety defined over a number field, when the bound on the height tends to infinity. In particular, we show that this can be connected to the Batyrev-Manin-Peyre conjecture, i.e. the case of rational points, on some ponctual Hilbert scheme. We thus deduce the distribution of algebraic points of fixed degree on a rational curve. When the variety is a smooth Fano surface, our study shows that the associated Hilbert schemes provide, under certain conditions, new counterexamples to the Batyrev-Manin-Peyre conjecture. However, in two cases detailed in this thesis, the associated Hilbert schemes satisfie a slightly weaker version of the Batyrev-Manin-Peyre conjecture
Ambrosi, Emiliano. "l-adic,p-adic and geometric invariants in families of varieties." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX019/document.
Full textThis thesis is divided in 8 chapters. Chapter ref{chapterpreliminaries} is of preliminary nature: we recall the tools that we will use in the rest of the thesis and some previously known results. Chapter ref{chapterpresentation} is devoted to summarize in a uniform way the new results obtained in this thesis.The other six chapters are original. In Chapters ref{chapterUOIp} and ref{chapterneron}, we prove the following: given a smooth proper morphism $f:Yrightarrow X$ over a smooth geometrically connected base $X$ over an infinite finitely generated field of positive characteristic, there are lots of closed points $xin |X|$ such that the rank of the N'eron-Severi group of the geometric fibre of $f$ at $x$ is the same of the rank of the N'eron-Severi group of the geometric generic fibre. To prove this, we first study the specialization of the $ell$-adic lisse sheaf $R^2f_*Ql(1)$ ($ellneq p$), then we relate it with the specialization of the F-isocrystal $R^2f_{*,crys}mathcal O_{Y/K}(1)$ passing trough the category of overconvergent F-isocrystals. Then, the variational Tate conjecture in crystalline cohomology, allows us to deduce the result on the N'eron-Severi groups from the results on $R^2f_{*,crys}mathcal O_{Y/K}(1)$. These extend to positive characteristic results of Cadoret-Tamagawa and Andr'e in characteristic zero.Chapters ref{chaptermarcuzzo} and ref{chapterpadic} are devoted to the study of the monodromy groups of (over)convergent F-isocrystals. Chapter ref{chaptermarcuzzo} is a joint work with Marco D'Addezio. We study the maximal tori in the monodromy groups of (over)convergent F-isocrystals and using them we prove a special case of a conjecture of Kedlaya on homomorphism of convergent $F$-isocrystals. Using this special case, we prove that if $A$ is an abelian variety without isotrivial geometric isogeny factors over a function field $F$ over $overline{F}_p$, then the group $A(F^{mathrm{perf}})_{tors}$ is finite. This may be regarded as an extension of the Lang--N'eron theorem and answer positively to a question of Esnault. In Chapter ref{chapterpadic}, we define $overline Q_p$-linear category of (over)convergent F-isocrystals and the monodromy groups of their objects. Using the theory of companion for overconvergent F-isocrystals and lisse sheaves, we study the specialization theory of these monodromy groups, transferring the result of Chapter ref{chapterUOIp} to this setting via the theory of companions.The last two chapters are devoted to complements and refinement of the results in the previous chapters. In Chapter ref{chaptertate}, we show that the Tate conjecture for divisors over finitely generated fields of characteristic $p>0$ follows from the Tate conjecture for divisors over finite fields of characteristic $p>0$. In Chapter ref{chapterbrauer}, we prove uniform boundedness results for the Brauer groups of forms of varieties in positive characteristic, satisfying the $ell$-adic Tate conjecture for divisors. This extends to positive characteristic a result of Orr-Skorobogatov in characteristic zero
Hofmann, Walter. "Class field theory for arithmetic schemes." [S.l.] : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=985500964.
Full textXu, Daxin. "Correspondances de Simpson p-adique et modulo pⁿ." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS133/document.
Full textThis thesis is devoted to two arithmetic variants of Simpson's correspondence. In the first part, I compare the p-adic Simpson correspondence with a p-adic analogue of the Narasimhan-Seshadri's correspondence for curves over p-adic fields due to Deninger and Werner. Narasimhan and Seshadri established a correspondence between stable bundles of degree zero and unitary representations of the topological fundamental group for a complex smooth proper curve. Using parallel transport, Deninger and Werner associated functorially to every vector bundle on a p-adic curve whose reduction is strongly semi-stable of degree 0 a p-adic representation of the fundamental group of the curve. They asked several questions: whether their functor is fully faithful; whether the cohomology of the local systems produced by this functor admits a Hodge-Tate filtration; and whether their construction is compatible with the p-adic Simpson correspondence developed by Faltings. We answer positively these questions. The second part is devoted to the construction of a lifting of the Cartier transform of Ogus-Vologodsky modulo pⁿ. Let W be the ring of the Witt vectors of a perfect field of characteristic p, X a smooth formal scheme over W, X' the base change of X by the Frobenius morphism of W, X'_2 the reduction modulo p² of X' and Y the special fiber of X. We lift the Cartier transform of Ogus-Vologodsky relative to X'_2 modulo pⁿ. More precisely, we construct a functor from the category of pⁿ-torsion O_{X'}-modules with integrable p-connection to the category of pⁿ-torsion O_X-modules with integrable connection, each subject to a suitable nilpotence condition. Our construction is based on Oyama's reformulation of the Cartier transform of Ogus-Vologodsky in characteristic p. If there exists a lifting F: X -> X' of the relative Frobenius morphism of Y, our functor is compatible with a functor constructed by Shiho from F. As an application, we give a new interpretation of relative Fontaine modules introduced by Faltings and of the computation of their cohomology
Harding, S. J. "Some arithmetic and geometric problems concerning discrete groups." Thesis, University of Southampton, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370341.
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