Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 59 for “"Gelfand"”.
-
A combinatorial property of Bernstein-Gelfand-Gelfand resolutions of unitary highest weight modules.
… parabolic Verma modules in the Bernstein-Gelfand-Gelfand-Lepowsky resolution of the trivial representation is a single root. We show that an analogous property holds for all unitary representations of simply laced type. Specifically, the difference between consecutive highest weights is a …
-
The Gelfand Theorem for Commutative Banach Algebras
… of commutative Banach Algebras and study the Gelfand Map. We study the main characteristic of that map, and work on some applications.</p>
-
Schubert geometry of flag varities and Gelfand-Cetlin theory
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mathematics, 2000
-
Kazhdan-Lusztig-Basen, unzerlegbare Bimoduln und die Topologie der Fahnenmannigfaltigkeit einer Kac-Moody-Gruppe
… die Struktur der Kategorie O von Bernstein, <br>Gelfand und Gelfand beschreiben läßt.
-
Numerical generation of semisimple tortile categories coming from quantum groups
… source of the categories we study is the work of Gelfand and Kazhdan, Examples of tensor categories, Invent.Mlath. 109 (l992), 595-617. They proved that, associated to the quantized enveloping algebra of any simple Lie group at a primitive prime root of unity, there is a semisimple monoidal …
-
Unipotent elements in algebraic groups
… Our third topic is concerned with generalised Gelfand-Graev representations of finite groups of Lie type. Let u be a unipotent element in such a group GF and let Γu be the associated generalised Gelfand-Graev representation of GF . Under the assumption that G has a connected centre, we show …
-
Exact reconstruction of ocean bottom velocity profiles from monochromatic scattering data
… for large kz and is therefore inteqrable. The Gelfand-Levitan inversion procedure is extended to include the case of basement velocity higher than the velocity of sound in water. The neglect of bound states is shown to be justified in both clayey silt and silty clay at the 220 Hz frequency of …
-
Quantum intertwiners and integrable systems
… traces of intertwiners of quantum groups in the Gelfand-Tsetlin basis. In the quasiclassical limit, we obtain a new Harish-Chandra type integral formula for Heckman- Opdam hypergeometric functions. This formula is related to an integral formula appearing in recent work of Borodin-Gorin by …
-
Categorías aplicadas a la teoría de álgebra de Banach
… para clarificar la demostración del teorema de Gelfand-Naimark. Estas estructuras y transformaciones pueden tratarse como ejemplo de elementos básicos de la teoría de categorías. Las estructuras más importantes con las que trabajaremos son las categorías cuyos objetos son espacios topológicos …
-
The Line in the Sand: Understanding Customer Sexual Harassment Through a Psychological Contract Framework
… to the career development of women (Gettman & Gelfand, 2007; Morganson & Major, 2008). The current study applies psychological contract theory toward understanding how CSH leads to adverse outcomes, which affect individuals and organizations. A sample of 420 working women including both …
-
The homotopy type of the matroid Grassmannian
… and topology, particularly concerning the Gelfand-MacPherson combinatorial formula for rational Pontrjagin classes.
-
Hochschild homology / cohomology of preprojective algebras of ADET quivers
… algebras [Pi]q of quivers Q were introduced by Gelfand and Ponomarev in 1979 in order to provide a model for quiver representations (in the special case of finite Dynkin quivers). They showed that in the Dynkin case, the preprojective algebra decomposes as the direct sum of all indecomposable …
-
Kazhdan-Laumon Categories and Representations
… define and study an analogue of the Bernstein-Gelfand-Gelfand Category O for Kazhdan-Laumon categories and study its combinatorics, establishing connections to Braverman-Kazhdan’s Schwartz space on the basic affine space and the semi-infinite flag variety. We then study the braid group action …
-
Genera via Deformation Theory and Supersymmetric Mechanics
… quantization. Our proof uses the formalism of Gelfand-Kazhdan descent, whose foundations we establish in the super-symplectic setting. In the second part of this thesis, we prove a super-version of Nest-Tsygan’s algebraic index theorem, generalizing work of Engeli. This work is inspired by the …
-
Group integrals in chaotic quantum systems
… symplectic group. Moreover we generalize the Gelfand--Tzetlin coordinate system and construct a parametrization of the unitary orthosymplectic group UOSp(k_1/2k_2).
-
Representation of non-commutative topological algebras
… rings and algebras. In order to prove the Gelfand-Naimark theorem, we needed the Stone-Weierstrass theorem to enable us to show that a subalgebra is actually equal to a full algebra of functions. We shall see that in order to represent a non-commutative algebra as a set of functions taking …
-
Laplacians on Nonisotropic Heisenberg Groups with Multi-Dimensional Center
… hypoelliptic in the Schwartz space and in the Gelfand-Shilov spaces using the Green functions of the twisted Laplacians. Global regularity in a scale of Sobolev spaces of these twisted Laplacians is given. Equally important are the heat semigroups generated by the twisted Laplacians in terms of …
-
Global normal forms and global properties in function spaces for second order Shubin type operators
… the weighted Shubin-Sobolev spaces and the Gelfand-Shilov spaces. We prove that the operator P(x;D) and the normal form PNF(x;D) have the same regularity/solvability and spectral properties. We also study the stability of global properties of the normal forms under perturbations by zero …
Page 1 of 3