Letteratura scientifica selezionata sul tema "Springer fibers"
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Articoli di riviste sul tema "Springer fibers":
Precup, Martha, e Edward Richmond. "An equivariant basis for the cohomology of Springer fibers". Transactions of the American Mathematical Society, Series B 8, n. 17 (10 giugno 2021): 481–509. http://dx.doi.org/10.1090/btran/57.
KIM, D. "EULER CHARACTERISTIC OF SPRINGER FIBERS". Transformation Groups 24, n. 2 (11 agosto 2018): 403–28. http://dx.doi.org/10.1007/s00031-018-9487-4.
Graham, William, e R. Zierau. "Smooth components of Springer fibers". Annales de l’institut Fourier 61, n. 5 (2011): 2139–82. http://dx.doi.org/10.5802/aif.2669.
Tsai, Cheng-Chiang. "Components of Affine Springer Fibers". International Mathematics Research Notices 2020, n. 6 (9 maggio 2018): 1882–919. http://dx.doi.org/10.1093/imrn/rny085.
Precup, Martha, e Julianna Tymoczko. "Springer fibers and Schubert points". European Journal of Combinatorics 76 (febbraio 2019): 10–26. http://dx.doi.org/10.1016/j.ejc.2018.08.010.
Olasupo Jon, Felemu. "Springer Fibers of Hook Type and Schubert Points". International Journal of Science and Research (IJSR) 12, n. 2 (5 febbraio 2023): 377–85. http://dx.doi.org/10.21275/sr23203080130.
Jóźwicki, Mateusz Łukasz, Mateusz Gargol, Małgorzata Gil-Kowalczyk e Paweł Mergo. "Commercially available granulates PMMA and PS - potential problems with the production of polymer optical fibers". Photonics Letters of Poland 12, n. 3 (30 settembre 2020): 79. http://dx.doi.org/10.4302/plp.v12i3.1036.
Goresky, Mark, Robert Kottwitz e Robert MacPherson. "Regular points in affine Springer fibers". Michigan Mathematical Journal 53, n. 1 (aprile 2005): 97–107. http://dx.doi.org/10.1307/mmj/1114021087.
Goresky, Mark, Robert Kottwitz e Robert MacPherson. "Purity of equivalued affine Springer fibers". Representation Theory of the American Mathematical Society 10, n. 6 (20 febbraio 2006): 130–46. http://dx.doi.org/10.1090/s1088-4165-06-00200-7.
Leidwanger, Séverine, e Nicolas Perrin. "Study of some orthosymplectic Springer fibers". Journal of Algebra 335, n. 1 (giugno 2011): 83–95. http://dx.doi.org/10.1016/j.jalgebra.2011.03.011.
Tesi sul tema "Springer fibers":
Yue, Guangyi. "Combinatorics of affine Springer fibers and combinatorial wall-crossing". Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/126939.
Cataloged from the official PDF of thesis.
Includes bibliographical references (pages 149-152).
This thesis deals with several combinatorial problems in representation theory. The first part of the thesis studies the combinatorics of affine Springer fibers of type A. In particular, we give an explicit description of irreducible components of Fl[subscript tS] and calculate the relative positions between two components. We also study the lowest two-sided Kazhdan-Lusztig cell and establish a connection with the affine Springer fibers, which is compatible with the affine matrix ball construction algorithm. The results also prove a special case of Lusztig's conjecture. The work in this part include joint work with Pablo Boixeda. In the second part, we define the combinatorial wall-crossing transformation and the generalized column regularization on partitions and prove that a certain composition of these two transformations has the same effect on the one-row partition. This result gives a special situation where column regularization, can be used to understand the complicated Mullineux map, and also proves a special case of Bezrukavnikov's conjecture. Furthermore, we prove a condition under which the two maps are exactly the same, generalizing the work of Bessenrodt, Olsson and Xu. The combinatorial constructions is related to the Iwahori-Hecke algebra and the global crystal basis of the basic [ ... ]-module and we provide several conjectures regarding the q-decomposition numbers and generalizations of results due to Fayers. This part is a joint work with Panagiotis Dimakis and Allen Wang.
by Guangyi Yue.
Ph. D.
Ph.D. Massachusetts Institute of Technology, Department of Mathematics
Wilbert, Arik [Verfasser]. "Two-row Springer fibers, foams and arc algebras of type D / Arik Wilbert". Bonn : Universitäts- und Landesbibliothek Bonn, 2017. http://d-nb.info/113904897X/34.
Boixeda, Alvarez Pablo. "Affine Springer fibers and the representation theory of small quantum groups and related algebras". Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/126920.
Cataloged from the official PDF of thesis.
Includes bibliographical references (pages 125-128).
This thesis deals with the connections of Geometry and Representation Theory. In particular we study the representation theory of small quantum groups and Frobenius kernels and the geometry of an equivalued affine Springer fiber Fl[subscript ts] for s a regular semisimple element. In Chapter 2 we relate the center of the small quantum group with the cohomology of the above affine Springer fiber. This includes joint work with Bezrukavnikov, Shan and Vaserot. In Chapter 3 we study the geometry of the affine Springer fiber and in particular understand the fixed points of a torus action contained in each component. In Chapter 4 we further have a collection of algebraic results on the representation theory of Frobenius kernels. In particular we state some results pointing towards some construction of certain partial Verma functors and we compute this in the case of SL₂. We also compute the center of Frobenius kernels in the case of SL₂ and state a conjecture on a possible inductive construction of the general center.
by Pablo Boixeda Alvarez.
Ph. D.
Ph.D. Massachusetts Institute of Technology, Department of Mathematics
Jacques, Simon. "Adhérences de certaines orbites dans la variété de drapeaux, résolution et normalité dans les types classiques A, B, D". Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0299.
Let G be a connected algebraic reductive group in types A, B, or D, and e be a nilpotent element of its Lie algebra with centralizer Z:=Z_G(e). We suppose the characteristic zero and that e corresponds to a nilpotent endomorphism of order two. We sketch a proof of the following result: all Z-orbit closures Y in the flag variety X of G are normal. It extends a work of Nicolas Perrin and Evgeny Smirnov which deals with an irreducible component Y of the Springer fiber X(e) in types A and D. We use the same main arguments, namely an induction based on (1): the existence of a suitable birational morphism onto Y, and (2): the surjectivity of section restrictions of an ample line bundle. For us (1) will be obtained thanks to good Weyl group elements, Schubert varieties, Bott-Samelson varieties and several fundamental results from Roger Wolcott Richardson and Tonny Albert Springer on symmetric spaces. On the other hand, (2) follows from a theorem proved by Xuhua He and Jesper Funch Thomsen which states Frobenius splittings of Y-like varieties. It thus implies (2) in positive characteristic and we just have to pass it through the zero : we then merely produce an example of the reduction modulo p method.Our work suggests several avenues of research and could be improved in several directions. It could have implications for the study of the irreducible components of the Steinberg variety and thus for the calculation of the characteristic polynomials. They have been introduced by Anthony Joseph in order to constitute irreducible representations of the Weyl group. Our work also raises the question of its generalization to the C type, the exceptional types and the positive characteristic
Bouthier, Alexis. "Géométrisation du côté orbital de la formule des traces". Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112064.
This main goal of this work is to construct and study the properties of Hitchin fibration for groups which appears naturally when we try to geometrize the trace formula. We begin by constructing this fibration using the Vinberg’s semigroup. On this semigroup, we show that there exists a characteristic polynomial morphism equipped with a natural section, analog at the Kostant’s one in the case of Lie algebras. We also show that there exists on the base of characteristic polynomials a regular centralizer scheme, which is a smooth commutative group scheme.Then, we are interested in some variant of affine Springer fibers, for which we see that the Vinberg’s semigroup appears naturally to obtain an integrality condition analog to Kazhdan-Lusztig’s one. These affine Springer fibers are local incarnation of Hitchin fibers.In a third time, we go back to the global case and give a modular interpretation of this new Hitchin fibration on which we construct an action of a Picard stack, coming from the regular centralizer.The total space of this fibration, even on the generically regular semisimple locus will be singular and we want to understand his intersection complex. This space can be obtained as the intersection of the Hecke stack with the diagonal of the stack of G-bundles and we show that on a sufficiently big open subset of the Hitchin base, the intersection complex of the Hitchin’s space is the restriction of the corresponding intersection complex on the Hecke stack.Finally, in the last part of this work, we establish a support theorem in the case of a singular total space, generalizing Ngo’s theorem et we show that in the case of Hitchin fibration, the supports that appear are related to the endoscopic strata
Chen, Zongbin. "Pureté des fibres de Springer affines pour GL_4". Thesis, Paris 11, 2011. http://www.theses.fr/2011PA112266/document.
This thesis consists of two parts. In the first part, we prove the purity of affine Springer fibers for $\gl_{4}$ in the unramified case. More precisely, we have constructed a family of non standard affine pavings for the affine grassmannian, which induce an affine paving for the affine Springer fiber. In the second part, we introduce a notion of $\xi$-stability on the affine grassmannian $\xx$ for the group $G=\gl_{d}$, and we calculate the Poincaré polynomial of the quotient $\xx^{\xi}/T$ of the stable part $\xxs$ by the maximal torus $T$ by a process analogue to the Harder-Narasimhan reduction
Chen, Zongbin. "Sur la pureté des fibres de Springer affines non-ramifiées pour GL4". Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00656163.
Fresse, Lucas. "Une étude combinatoire de la géométrie des fibres de Springer de type A". Lyon 1, 2007. http://www.theses.fr/2007LYO10322.
The variety of flags which are stable by a nilpotent endomorphism is called Springer fiber. We study this variety and its irreducible components. The fixed points of a torus on this variety are parameterized by a set of tableaux said row-standard. We construct a cell decomposition of the variety which is naturally parameterized by the row-standard tableaux, since each cell contains one fixed point, and such that the codimension of cells is analogous to a Bruhat length. This allows a handy calculation of the Betti numbers. When the nilpotent endomorphism is of hook, two-rows or two-columns type, we define a notion of constructibility for the row-standard tableaux which allows to describe the fixed points of the components. We deduce a calculation of the dimension of a finite intersection of components and, in the two-columns case, a criterion of singularity
Fan, Xiuling Broughton Roy. "Value-added products from chicken feather fibers and protein". Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SPRING/Polymer_and_Fiber_Engineering/Dissertation/Fan_Xiuling_15.pdf.
Liu, Yang. "Calibration of Glass Fiber Microcantilevers". Ohio University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1268336942.
Libri sul tema "Springer fibers":
Jun'ichi, Hori. Leaf spring made of fiber-reinforced resin. Washington D.C: National Aeronautics and Space Administration, 1986.
Integrated Photonics Research Topical Meeting. (1993 Palm Springs, Calif.). Integrated photonics research: Summaries of papers presented at the Integrated Photonics Research Topical Meeting, March 22-24, 1993, Palm Springs, California. Washington, D.C: Optical Society of America, 1993.
Ilvessalo-Pfäffli, Marja-Sisko. Fiber Atlas: Identification of Papermaking Fibers (Springer Series in Wood Science). Springer, 1995.
Ilvessalo-Pfaffli, Marja-Sisko. Fiber Atlas: Identification of Papermaking Fibers (Springer Series in Wood Science). Springer, 1995.
Fibre Optic Communication Springer Series in Optical Sciences. Springer, 2012.
Arditty, H. J., e John P. Dakin. Optical Fiber Sensors: Proceedings of the 6th International Conference, Ofs'89, Paris, France, September 18-20, 1989 (Springer Proceedings in Physics). Springer-Verlag, 1989.
Islam, Mohammad N. Raman Amplifiers for Telecommunications 1: Physical Principles (Springer Series in Optical Sciences). Springer, 2003.
Schneider, K., e H. Zimmermann. Highly Sensitive Optical Receivers (Springer Series in Advanced Microelectronics). Springer, 2006.
Chiang, Kin S., e Herbert Li. Nonlinear Photonics: Nonlinearities in Optics, Optoelectronics and Fiber Communications (Springer Series in Photonics, V. 8). Chinese Univ Pr, 2005.
(Editor), Krishna M. Sivalingam, e Suresh Subramaniam (Editor), a cura di. Optical WDM Networks - Principles and Practice (The Springer International Series in Engineering and Computer Science). Springer, 2000.
Capitoli di libri sul tema "Springer fibers":
Chartier, Thierry. "Optical Fibers". In Springer Handbook of Glass, 1405–39. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-93728-1_41.
Tao, Guangming, Ayman F. Abouraddy, Alexander M. Stolyarov e Yoel Fink. "Multimaterial Fibers". In Springer Series in Surface Sciences, 1–26. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06998-2_1.
Sillard, Pierre, e Denis Molin. "Optical Fibers". In Springer Series in Optical Sciences, 49–102. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-42367-8_2.
Ghatak, Ajoy, e K. Thyagarajan. "Optical Fibers". In Springer Handbook of Lasers and Optics, 1171–208. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-19409-2_14.
Hasegawa, Akira, e Masayuki Matsumoto. "Lightwave in Fibers". In Springer Series in Photonics, 11–18. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-46064-0_3.
Hasegawa, Akira, e Masayuki Matsumoto. "Optical Solitons in Fibers". In Springer Series in Photonics, 41–59. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-46064-0_5.
Hasegawa, A. "Solitons in optical fibers". In Springer Tracts in Modern Physics, 35–41. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/bfb0108682.
Ter-Mikirtychev, Vartan V. "Fiber Fabrication and High-Quality Glasses for Gain Fibers". In Springer Series in Optical Sciences, 41–46. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-33890-9_4.
Ter-Mikirtychev, Valerii. "Fiber Fabrication and High-Quality Glasses for Gain Fibers". In Springer Series in Optical Sciences, 37–42. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-02338-0_4.
Mokhtari, Fatemeh. "Wearable Electronic Textiles from Nanostructured Piezoelectric Fibers". In Springer Theses, 101–24. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06481-4_4.
Atti di convegni sul tema "Springer fibers":
Sancaktar, Erol, e Sunil Gowrishankar. "Natural Frequencies of Composite Cylindrical Helical Springs Manufactured Using Filament Winding". In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-87830.
Shahinpoor, Mohsen, Martin W. J. Burmeister e Wesley Hoffman. "Design, Modeling and Fabrication of Micro-Robotic Actuators With Ionic Polymeric Gel and SMA Micro-Muscles". In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0626.
Yalin, Azer P., Adam R. Reynolds, Sachin Joshi, Morgan W. Defoort, Bryan Willson, Yuji Matsuura e Mitsunobu Miyagi. "Development of a Fiber Delivered Laser Ignition System for Natural Gas Engines". In ASME 2006 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/ices2006-1370.
Elmoselhy, Salah A., Badr S. Azzam e Sayed M. Metwalli. "Experimental Analysis of Laminated Fibrous Micro-Composite E-Springs for Vehicle Suspension Systems". In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-80780.
Watson, Hugh A. "A linear array of twelve graded-index lenses butted coaxially against single-mode fibers using silicon V-groove technology". In Integrated Photonics Research. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/ipr.1991.mc7.
Li, He, e George Lykotrafitis. "A Coarse-Grained Molecular Dynamics Model for Sickle Hemoglobin Fibers". In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-37980.
Djomseu, Patricia, Max A. Sardou e Thomas R. Berg. "Composite Coil Spring Development and Testing". In IEEE/ASME/ASCE 2008 Joint Rail Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/jrc2008-63019.
Gradov, O. V. "Towards Electron-Beam-Driven Soft / Polymer Fiber Microrobotics for Vacuum Conditions". In Modern Trends in Manufacturing Technologies and Equipment. Materials Research Forum LLC, 2022. http://dx.doi.org/10.21741/9781644901755-64.
Foglesong, Tim, Rob Stone e John Parmigiani. "Dynamics Modeling to Inform Design Optimization". In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-34412.
Seeley, Charles E., Glen Koste e Craig Stringer. "Hysteresis and Viscoelastic Modeling of a Piezo-Optic Voltage Sensor". In ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2008. http://dx.doi.org/10.1115/smasis2008-465.
Rapporti di organizzazioni sul tema "Springer fibers":
Hot Springs-Garrison Fiber Optic Project. Office of Scientific and Technical Information (OSTI), ottobre 1994. http://dx.doi.org/10.2172/10121282.
AN ANALYTICAL METHOD FOR EVALUATING THE DEFLECTION AND LOAD-BEARING AND ENERGY ABSORPTION CAPACITY OF ROCKFALL RING NETS CONSIDERING MULTIFACTOR INFLUENCE. The Hong Kong Institute of Steel Construction, settembre 2022. http://dx.doi.org/10.18057/ijasc.2022.18.3.1.