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This paper aims at developing a "local--global" approach for various types of finite dimensional algebras, especially those related to Hecke algebras. The eventual intention is to apply the methods and applications developed here to the…

Representation Theory · Mathematics 2018-02-28 Jie Du , Brian J. Parshall , Leonard L. Scott

It has previously been shown heuristically that the topology of the Universe affects gravity, in the sense that a test particle near a massive object in a multiply connected universe is subject to a topologically induced acceleration that…

Cosmology and Nongalactic Astrophysics · Physics 2012-08-06 Jan J. Ostrowski , Boudewijn F. Roukema , Zbigniew P. Bulinski

We define a GL-variety to be a (typically infinite dimensional) algebraic variety equipped with an action of the infinite general linear group under which the coordinate ring forms a polynomial representation. Such varieties have been used…

Algebraic Geometry · Mathematics 2022-09-07 Arthur Bik , Jan Draisma , Rob H. Eggermont , Andrew Snowden

We study some topological aspects of non-abelian gauge theories intimately connected to the Lie algebras of the gauge groups and the homotopy theory in the generalized gauge orbit space. The physics connection to the non-perturbative…

High Energy Physics - Phenomenology · Physics 2009-10-22 Huazhong Zhang

This article presents a formula for products of Schubert classes in the quantum cohomology ring of the Grassmannian. We introduce a generalization of Schur symmetric polynomials for shapes that are naturally embedded in a torus. Then we…

Combinatorics · Mathematics 2007-05-23 Alexander Postnikov

Let R be a commutative, noetherian, local ring. Topological Q-vector spaces modelled on full subcategories of the derived category of R are constructed in order to study intersection multiplicities.

Commutative Algebra · Mathematics 2007-05-23 Anders J. Frankild , Esben Bistrup Halvorsen

The linear stability of closed timelike geodesics (CTGs) is analyzed in two spacetimes with cylindrical sources, an infinite rotating dust cylinder, and a cylindrical cloud of static cosmic strings with a central spinning string. We also…

General Relativity and Quantum Cosmology · Physics 2011-01-26 Valéria M. Rosa , Patricio S. Letelier

Using zeta-integrals and lattices of functions on a spherical variety, we study integral structures in spherical representations of $\mathrm{GL}_2(\mathbf{Q}_p)$ and their interaction with the unique linear functional invariant under an…

Number Theory · Mathematics 2025-04-04 Alexandros Groutides

Ashtekar's formulation for canonical quantum gravity is known to possess the topological solutions which have their supports only on the moduli space $\CN$ of flat $SL(2,C)$ connections. We show that each point on the moduli space $\CN$…

General Relativity and Quantum Cosmology · Physics 2011-09-09 Kiyoshi Ezawa

It is shown that any compact semistable quotient (in the sense of Heinzner and Snow) of a normal algebraic variety by a complex reductive Lie group $G$ is a good quotient. This reduces the investigation and classification of such…

Complex Variables · Mathematics 2015-09-16 Daniel Greb

In this paper we prove a strong version of the Hilbert Nullstellensatz in the ring $\mathbb H[q_1,\ldots,q_n]$ of slice regular polynomials in several quaternionic variables. Our proof deeply depends on a detailed analysis of the common…

Complex Variables · Mathematics 2025-09-16 Anna Gori , Giulia Sarfatti , Fabio Vlacci

The objective of this paper is to describe the structure of Zariski closed algebras, which provide a useful generalization to finite dimensional algebras in the study of representable algebras over finite fields. Our results include a…

Rings and Algebras · Mathematics 2011-09-23 Alexei Belov-Kanel , Louis H. Rowen , Uzi Vishne

We show that the endomorphism ring of each cluster tilting object in a tubular cluster category is a finite dimensional Jacobian algebra which is tame of polynomial growth. Moreover, these Jacobian algebras are given by a quiver with a…

Rings and Algebras · Mathematics 2016-01-07 Christof Geiss , Raúl González-Silva

We study the Cauchy problem for a system of cubic nonlinear Klein-Gordon equations in one space dimension. Under a suitable structural condition on the nonlinearity, we will show that the solution exists globally and decays of the order…

Analysis of PDEs · Mathematics 2016-02-11 Donghyun Kim

We analyze the classical stability of Q-tubes --- charged extended objects in $(3+1)$-dimensional complex scalar field theory. Explicit solutions were found analytically in the piecewise parabolic potential. Our choice of potential allows…

High Energy Physics - Theory · Physics 2014-07-29 E. Nugaev , A. Shkerin

An important, if relatively less well known aspect of the singularity theorems in Lorentzian Geometry is to understand how their conclusions fare upon weakening or suppression of one or more of their hypotheses. Then, theorems with modified…

General Relativity and Quantum Cosmology · Physics 2014-08-20 I. P. Costa e Silva , J. L. Flores

We study the stability of traveling waves of nonlinear Schr\"odinger equation with nonzero condition at infinity obtained via a constrained variational approach. Two important physical models are Gross-Pitaevskii (GP) equation and…

Analysis of PDEs · Mathematics 2016-03-15 Zhiwu Lin , Zhengping Wang , Chongchun Zeng

Let $R$ be a commutative ring with nonzero identity and $M$ be an $R$-module. Quasi-prime submodules of $M$ and the developed Zariski topology on $q\Spec(M)$ are introduced. We also, investigate the relationship between the algebraic…

Commutative Algebra · Mathematics 2011-05-24 A. Abbasi And D. Hassanzadeh-Lelekaami

A universal symmetry algebra organizing the gravitational phase space has been recently found. It corresponds to the subset of diffeomorphisms that become physical at corners -- codimension-$2$ surfaces supporting Noether charges. It…

High Energy Physics - Theory · Physics 2023-01-10 Luca Ciambelli , Robert G. Leigh

Symmetric Grothendieck polynomials are inhomogeneous versions of Schur polynomials that arise in combinatorial $K$-theory. A polynomial has saturated Newton polytope (SNP) if every lattice point in the polytope is an exponent vector. We…

Combinatorics · Mathematics 2017-10-17 Laura Escobar , Alexander Yong