Academic literature on the topic 'Lagrangian families'
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Journal articles on the topic "Lagrangian families"
Golovko, Roman. "On topologically distinct infinite families of exact Lagrangian fillings." Archivum Mathematicum, no. 5 (2022): 287–93. http://dx.doi.org/10.5817/am2022-5-287.
Full textPaoletti, Roberto. "On families of Lagrangian submanifolds." manuscripta mathematica 107, no. 2 (February 1, 2002): 145–50. http://dx.doi.org/10.1007/s002290100229.
Full textChen, Bang-Yen. "CLASSIFICATION OF LAGRANGIAN SURFACES OF CONSTANT CURVATURE IN THE COMPLEX EUCLIDEAN PLANE." Proceedings of the Edinburgh Mathematical Society 48, no. 2 (May 23, 2005): 337–64. http://dx.doi.org/10.1017/s0013091504000203.
Full textMatessi, Diego. "Some families of special Lagrangian tori." Mathematische Annalen 325, no. 2 (February 2003): 211–28. http://dx.doi.org/10.1007/s00208-002-0360-2.
Full textDoria, R. M., and S. Machado. "Yang-Mills Families." JOURNAL OF ADVANCES IN PHYSICS 13, no. 4 (August 1, 2017): 4927–55. http://dx.doi.org/10.24297/jap.v13i6.6173.
Full textConsul, P. C. "Some bivariate families of lagrangian probability distributions." Communications in Statistics - Theory and Methods 23, no. 10 (January 1994): 2895–906. http://dx.doi.org/10.1080/03610929408831423.
Full textKamenova, Ljudmila, and Misha Verbitsky. "Families of Lagrangian fibrations on hyperkähler manifolds." Advances in Mathematics 260 (August 2014): 401–13. http://dx.doi.org/10.1016/j.aim.2013.10.033.
Full textCariñena, José F., and José Fernández-Núñez. "Some Applications of Affine in Velocities Lagrangians in Two-Dimensional Systems." Symmetry 14, no. 12 (November 29, 2022): 2520. http://dx.doi.org/10.3390/sym14122520.
Full textBourgeois, Frédéric, Joshua M. Sabloff, and Lisa Traynor. "Lagrangian cobordisms via generating families: Construction and geography." Algebraic & Geometric Topology 15, no. 4 (September 10, 2015): 2439–77. http://dx.doi.org/10.2140/agt.2015.15.2439.
Full textBernard, Patrick, and Gonzalo Contreras Barandarián. "A generic property of families of Lagrangian systems." Annals of Mathematics 167, no. 3 (May 1, 2008): 1099–108. http://dx.doi.org/10.4007/annals.2008.167.1099.
Full textDissertations / Theses on the topic "Lagrangian families"
Marelli, Giovanni. "A Fourier Transform for Sheaves on Lagrangian Families of Real Tori." Doctoral thesis, SISSA, 2001. http://hdl.handle.net/20.500.11767/4242.
Full textBai, Chenyu. "Hodge Theory, Algebraic Cycles of Hyper-Kähler Manifolds." Electronic Thesis or Diss., Sorbonne université, 2024. http://www.theses.fr/2024SORUS081.
Full textThis thesis is devoted to the study of algebraic cycles in projective hyper-Kähler manifolds and strict Calabi-Yau manifolds. It contributes to the understanding of Beauville's and Voisin's conjectures on the Chow rings of projective hyper-Kähler manifolds and strict Calabi-Yau manifolds. It also studies some birational invariants of projective hyper-Kähler manifolds.The first part of the thesis, appeared in Mathematische Zeitschrift [C. Bai, On Abel-Jacobi maps of Lagrangian families, Math. Z. 304, 34 (2023)] and presented in Chapter 2, studies whether the Lagrangian subvarieties in a hyper-Kähler manifold sharing the same cohomological class have the same Chow class as well. We study the notion of Lagrangian families and its associated Abel-Jacobi maps. We take an infinitesimal approach to give a criterion for the triviality of the Abel-Jacobi map of a Lagrangian family, and use this criterion to give a negative answer to the above question, adding to the subtleties of a conjecture of Voisin. We also explore how the maximality of the variation of the Hodge structures on the degree 1 cohomology the Lagrangian family implies the triviality of the Abel-Jacobi map. The second part of the thesis, to appear in International Mathematics Research Notices [C. Bai, On some birational invariants of hyper-Kähler manifolds, ArXiv: 2210.12455, to appear in International Mathematics Research Notices, 2024] and presented in Chapter 3, studies the degree of irrationality, the fibering gonality and the fibering genus of projective hyper-Kähler manifolds, with emphasis on the K3 surfaces case, en mettant l'accent sur le cas des surfaces K3. We first give a slight improvement of a result of Voisin on the lower bound of the degree of irrationality of Mumford-Tate general hyper-Kähler manifolds. We then study the relation of the above three birational invariants for projective K3 surfaces of Picard number 1, adding the understandinf of a conjecture of Bastianelli, De Poi, Ein, Lazarsfeld, Ullery on the asymptotic behavior of the degree of irrationality of very general projective K3 surfaces. The third part of the thesis, presented in Chapter 4, studies the higher dimensional Voisin maps on strict Calabi-Yau manifolds. Voisin constructed self-rational maps of Calabi-Yau manifolds obtained as varieties of r-planes in cubic hypersurfaces of adequate dimension. This map has been thoroughly studied in the case r=1, which is the Beauville-Donagi case. For higher dimensional cases, we first study the action of the Voisin map on the holomorphic forms. We then prove the generalized Bloch conjecture for the action of the Voisin maps on Chow groups for the case of r=2. Finally, via the study of the Voisin map, we provide evidence for a conjecture of Voisin on the existence of a special 0-cycle on strict Calabi-Yau manifolds
Baptistella, Pedro Henrique. "Estudo comparativo entre elementos finitos isoparametricos das familias serendipity e lagrangiana para a analise de estabilidade de placas e cascas." [s.n.], 2001. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263288.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
Made available in DSpace on 2018-08-01T20:15:40Z (GMT). No. of bitstreams: 1 Baptistella_PedroHenrique_M.pdf: 4895786 bytes, checksum: 524a48114b7bde3e42723a076929150c (MD5) Previous issue date: 2001
Resumo: Em 1970, Ahmad et aI. apresentaram uma formulação, para a análise de placas e cascas, baseada na degeneração de um elemento sólido tridimensional, através da redução de sua dimensão na direção da espessura. O campo de deslocamento era, então, interpolado a partir das funções de forma da família Serendipity e, para a obtenção das características do elemento, utilizava-se integração numérica consistente. Os resultados obtidos por esse elemento foram excelentes para situações de placas e cascas moderadamente grossas, atendendo, portando, à teoria de Mindlin- Reissner ~ contudo, com a redução da espessura, o elemento tomava-se excessivamente rígido e os resultados não tendiam, como era de se esperar, àqueles da teoria clássica de Kirchho./f para placas e cascas finas. O objetivo deste trabalho é o estudo comparativo, na análise de estabilidade de placas e cascas, entre o desempenho, utilizando-se integração numérica consistente, do elemento finito isoparamétrico, quadrilateral, quadrático da família Serendipity e do elemento finito isoparamétrico, quadrilateral, quadrático da família Lagrangiana, obtidos, ambos, a partir da formulação de Ahmad. Pretende-se estabelecer, dentre os dois elementos, qual é o mais adequado para iniciar o desenvolvimento de um elemento finito subparamétrico do tipo hierárquico, baseado no conceito da aproximação p, visando retirar a característica de rigidez excessiva do elemento de Ahmad, para situações de placas e cascas finas
Abstract: In 1970, Ahmad et aI. presented a formulation for the analysis of plates and shells, based on the degeneration of a three-dimensional solid element, by reducing its dimention in the thickness direction. The displacement field was then interpolated through the shape function of Serendipity fami1y and, in order to achieve the element characteristics, consistent integration was used. The obtained results were excellent for moderately thick plates and shells aplications, being in concordance with the Mind/in-Reissner's theory; however, with the reduction of the thickness, the element became excessively rigid and the results did not tend to those ofthe Kirchhoff's theory for thin plates and shells. The purpose of this work is the comparative study inthestabilityanalysis of plates and shells concerning the performance, considering consistent numerical integration, of the isoparametric, quadrilateral, quadratic finite element of Serendipity fami1y and of the isoparametric, quadrilateral, quadratic finite element of Lagrangian fami1y, achieved, both, ftom the Ahmad' s formulation, one intends to estabilish, between both elements, which is the most adequa te to start the development of a subparametric hierarchical element, based on p aproximation concept, objectifying to remove the characteristic of excessive rigidy of the Ahmad' s elements for the situation of thin plates and shells
Mestrado
Mestre em Educação Física
Paschoalini, Amarildo Tabone. "Estudo comparativo entre elementos finitos isoparametricos das familias Serendipity e Lagrangeana para analise dinamica de placas e cascas." [s.n.], 1995. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263265.
Full textDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
Made available in DSpace on 2018-07-20T21:53:22Z (GMT). No. of bitstreams: 1 Paschoalini_AmarildoTabone_M.pdf: 45342195 bytes, checksum: f7de9b3d233ba2a85887ce0fe5967b08 (MD5) Previous issue date: 1995
Resumo: Em 1970, Ahmad apresentou uma formulação, para análise de placas e cascas, baseada na degeneração de um elemento tridimensional, através da redução de sua dimensão na direção da espessura. O campo de deslocamento era, então, interpolado a partir das funções de forma da família Serendipity e, para a obtenção das características do elemento, utilizava-se integração numérica consistente. Os resultados obtidos por esse elemento foram excelentes para situações de placas e cascas moderadamente grossas, atendendo, portanto, à teoria de Mindlin-Reissner; contudo, com a redução da espessura, o elemento tomava-se, excessivamente, rígido e os resultados não tendiam, como era de se esperar, àqueles da teoria clássica de Kirchhoff para placas e cascas finas. O objetivo deste trabalho é o estudo comparativo, na análise dinâmica de placas e cascas, entre o desempenho, utilizando-se integração numérica consistente, do elemento finito isoparamétrico, quadrilateral, quadrático, da família Serendipity e do elemento finito isoparamétrico, quadrilateral, quadrático, da família Lagrangeana, obtidos, ambos, a partir da formulação de Ahmad; pretende-se estabelecer, dentre os dois elementos, qual é o mais adequado para iniciar o desenvolvimento de um elemento finito subparamétrico do tipo hierárquico, baseado no conceito da aproximação p, visando retirar a característica de rigidez excessiva do elemento de Ahmad, para situações de placas e cascas finas
Abstract: In 1970, Ahmad presented a fonnulation for the analysis of plates and shells, based on the degeneration of three-dimensional solid element, by reducing its dimension in the thickness direction. The displacement field was then interpolated through the shape functions of Serendipity family and, in order to achieve the element characteristics, consistent numerical integration was used. The obtained results were excellent for moderately thick plates and shells applications, being in accordance with the Mindlin-Reissner's theory; however, with the reduction ofthe thickness, the element became excessively rigid and the results did not tend to those of the KirchhofJ's theory for thin plates and shells. The purpose of this work is the comparative study in the dynamic analysis of plates and shells conceming the perfonnance, considering consistent numerical integration, of the isoparametric, quadrilateral, quadratic finite element of Serendipity family and of the isoparametric, quadrilateral, quadratic finite element of Lagrangean family, achieved, both, from the Ahmad's fonnulation; one intends to establish, between both elements, which is the most adequate to start the development of a subparametric hierarchical element, based on the p approximation concept, objectifying to remove the characteristic of excessive rigidity of the Ahmad's element for the situations of thin plates and shells
Mestrado
Mecanica dos Sólidos e Projeto Mecanico
Mestre em Engenharia Mecânica
Pierossi, Marcelo de Almeida. "Estudo comparativo entre elementos finitos isoparametricos das familias Serendipity e Lagrangeana para analise estatica de placas e cascas." [s.n.], 1995. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263300.
Full textDissertação (mestrado) - Universidade de Campinas, Faculdade de Engenharia Mecanica
Made available in DSpace on 2018-07-21T14:06:57Z (GMT). No. of bitstreams: 1 Pierossi_MarcelodeAlmeida_M.pdf: 22853338 bytes, checksum: 6ece21ffddbf28fbd0da959dcc91fd0d (MD5) Previous issue date: 1995
Resumo: Em 1970, Ahmad apresentou uma formulação, para a análise de placas e cascas, baseada na degeneração de um elemento sólido tridimensional, através da redução de sua dimensão na direção da espessura. O campo de deslocamento era, então, interpolado a partir das funções de forma da familia Serendipity e, para a obtenção das características do elemento, utilizava-se integração numérica consistente. Os resultados obtidos por este elemento foram excelentes para situações de placas e cascas moderadamente grossas, atendendo, portanto, à teoria de Reissner. Contudo, com a redução da espessura, o elemento tomava-se excessivamente rígido e os resultados não tendiam, como era de se esperar, àqueles da teoria clássica de Kirchhoff para placas e cascas finas. O objetivo deste trabalho é o estudo comparativo, na análise estática de placas e cascas, entre o desempenho, utilizando-se integração numérica consistente, do elemento finito isoparamétrico, quadrilateral, quadrático, da família Serendipity e do elemento isoparamétrico, quadrilateral, quadrático, da família Lagrangeana, obtidos, ambos, a partir da formulação de Ahmad; pretende-se estabelecer, dentre os dois elementos, qual é o mais adequado para iniciar o desenvolvimento de um elemento finito subparamétrico do tipo hierárquico, baseado no conceito da aproximação p, visando retirar a característica de rigidez excessiva do elemento de Ahmad, para as situações de placas e cascas finas
Abstract: ln 1970, Ahmad presented a formulation for the analysis of plates and shells, based on the degeneration of a three-dimensional solid element, by reducing its dimension in the thickness direction. The displacement field was then interpolated through the shape functions of Serendipity family and, in order to achieve the element characteristics, consistent numerical integration was used. The results were excellent for moderately thick plates and shells applications, in accordance with the Reissner's theory; however, with the reduction of the thickness, the element became excessively rigid and the results did not tend to those of the Kirchhoff's theory for thin plates and shells. The purpose of this work is the comparative study in the static analysis of plates and shells concerning the performance, considering consistent numerical integration, of the isoparametric, quadrilateral, quadratic finite element of Serendipity family and of the isoparametric, quadrilateral, quadratic tinite element of Lagrangean family, obtained, both, trom the Ahmad's formulation. The main purpose is to establish, between both elements, which is the most adequate to start the development of a subparametric hierarchical element,based on the p-approximation concept, removing the characteristic of excessive rigidity of the Ahmad's element for the situations of thin plates and shells
Mestrado
Mecanica dos Sólidos e Projeto Mecanico
Mestre em Engenharia Mecânica
Mandorino, Vito. "Théorie KAM faible et instabilité pour familles d'hamiltoniens." Phd thesis, Université Paris Dauphine - Paris IX, 2013. http://tel.archives-ouvertes.fr/tel-00867687.
Full textButt, Sajid Ullah. "Conception et modélisation d'un montage de fabrication pour le balançage optimisé d'une famille de pièces." Phd thesis, 2012. http://pastel.archives-ouvertes.fr/pastel-00717645.
Full textBooks on the topic "Lagrangian families"
Sorrentino, Alfonso. Action-Minimizing Curves for Tonelli Lagrangians. Princeton University Press, 2017. http://dx.doi.org/10.23943/princeton/9780691164502.003.0004.
Full textMann, Peter. Near-Integrable Systems. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198822370.003.0024.
Full textBook chapters on the topic "Lagrangian families"
Castrillón López, Marco, and Tudor S. Ratiu. "Morse Families and Lagrangian Submanifolds." In Springer Proceedings in Mathematics & Statistics, 65–78. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32085-4_6.
Full textBryant, Robert. "Second order families of special Lagrangian 3-folds." In Perspectives in Riemannian Geometry, 63–98. Providence, Rhode Island: American Mathematical Society, 2006. http://dx.doi.org/10.1090/crmp/040/04.
Full textHefetz, Dan, and Peter Keevash. "A hypergraph Turán theorem via Lagrangians of intersecting families." In The Seventh European Conference on Combinatorics, Graph Theory and Applications, 27–32. Pisa: Scuola Normale Superiore, 2013. http://dx.doi.org/10.1007/978-88-7642-475-5_5.
Full textHofer, Helmut, Alberto Abbondandolo, Urs Frauenfelder, and Felix Schlenk. "Families of Legendrians and Lagrangians with unbounded spectral norm." In Symplectic Geometry, 365–96. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-19111-4_15.
Full textConference papers on the topic "Lagrangian families"
Rastogi, Vikas, Amalendu Mukherjee, and Anirvan Dasgupta. "Extended Lagrangian Formalism and Invariants of Motion of Dynamical Systems: A Case Study of Electromechanical System." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-79113.
Full textBoardman, A. D., and K. Xie. "Magnetic control of spatial soliton interactions." In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/cleo_europe.1994.cfg7.
Full textSchneider, O., H. J. Dohmen, F. K. Benra, and D. Brillert. "Investigations of Dust Separation in the Internal Cooling Air System of Gas Turbines." In ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/gt2003-38293.
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