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We endow the set of lattices in Q_p^n with a reasonable algebro-geometric structure. As a result, we prove the representability of affine Grassmannians and establish the geometric Satake correspondence in mixed characteristic. We also give…

Algebraic Geometry · Mathematics 2016-07-21 Xinwen Zhu

Let $E$ and $F$ be finite graphs with no sinks, and $k$ any field. We show that shift equivalence of the adjacency matrices $A_E$ and $A_F$, together with an additional compatibility condition, implies that the Leavitt path algebras…

Rings and Algebras · Mathematics 2023-11-07 Gene Abrams , Efren Ruiz , Mark Tomforde

We present a nearby cycle sheaf construction in the context of symmetric spaces. This construction can be regarded as a replacement for the Grothendieck-Springer resolution in classical Springer theory.

Algebraic Geometry · Mathematics 2025-03-25 Mikhail Grinberg , Kari Vilonen , Ting Xue

A suitable measure for the similarity of shapes represented by parameterized curves or surfaces is the Fr\'echet distance. Whereas efficient algorithms are known for computing the Fr\'echet distance of polygonal curves, the same problem for…

Computational Geometry · Computer Science 2007-05-23 Helmut Alt , Maike Buchin

It is well known that in general relativity theory two spacetimes whose metrics are related by a coordinate transformation are physically equivalent. However, given two line elements, it is virtually impossible to implement the most general…

General Relativity and Quantum Cosmology · Physics 2020-08-03 Thiago M. Mergulhão , Carlos Batista

In this paper we extend the twisted Satake equivalence established in arXiv:0809.3738 for almost simple groups to the case of split reductive groups.

Representation Theory · Mathematics 2016-01-24 Sergey Lysenko

We demonstrate the equivalence of Kazama-Suzuki cosets $G(m,n,k)$ and $G(k,n,m)$ based on complex Grassmannians by proving that the corresponding conformal precosheaves are isomorphic. We also determine all the irreducible representations…

Quantum Algebra · Mathematics 2009-11-07 Feng Xu

Polishchuk-Zaslow explained the homological mirror symmetry between Fukaya category of symplectic torus and the derived category of coherent sheaves of elliptic curves via Lagrangian torus fibration. Recently, Cho-Hong-Lau found another…

Symplectic Geometry · Mathematics 2019-03-21 Sangwook Lee

Two fields are Witt equivalent if their Witt rings of symmetric bilinear forms are isomorphic. Witt equivalent fields can be understood to be fields having the same quadratic form theory. The behavior of finite fields, local fields, global…

Rings and Algebras · Mathematics 2016-04-26 Paweł Gładki , Murray Marshall

Five geometrical eqivalents of Goldbach conjecture are given, calling one of them Fermat Like Theorem.

General Mathematics · Mathematics 2007-05-23 Kannan Nambiar

Let $G$ be a connected, simply-laced, almost simple algebraic group over $\mathbf{C}$, let $G_c$ be a maximal compact subgroup of $G(\mathbf{C})$, and let $T_c$ be a maximal torus therein. Let $\mathrm{Gr}_G$ denote the affine Grassmannian…

Representation Theory · Mathematics 2024-11-14 Sanath K. Devalapurkar

Along the recently trodden path of studying certain number theoretic properties of gauge theories, especially supersymmetric theories whose vacuum manifolds are non-trivial, we investigate Ihara's Graph Zeta Function for large classes of…

Mathematical Physics · Physics 2011-03-21 Yang-Hui He

In this article, we illustrate how the qualitative phase diagram of a gauge theory coupled to matter can be directly proved and how rigorous numerical bounds may be established. Our work reaffirms the seminal result of Fradkin and Shenker…

Statistical Mechanics · Physics 2009-11-10 Zohar Nussinov

In this paper, we prove that there is at most one correspondence between parahoric-spherical representations and semisimple local Langlands parameters which satisfies certain natural properties. Our proof of this uniqueness statement is…

Representation Theory · Mathematics 2023-01-27 Qihang Li

We show that any orientation preserving Hodge isometry between the Hodge structures of two K3 surfaces X and X' twisted by Brauer classes $\alpha$ resp. $\alpha'$ can be lifted to a Fourier-Mukai equivalence between the derived categories…

Algebraic Geometry · Mathematics 2013-09-12 Daniel Huybrechts , Paolo Stellari

We shall show that although Palatini f(R)-theories are equivalent to Brans-Dicke theories, still the first pass the Mercury precession of perihelia test, while the second do not. We argue that the two models are not physically equivalent…

General Relativity and Quantum Cosmology · Physics 2013-02-14 L. Fatibene , M. Francaviglia

We develop an algebraic version of Cartan method of equivalence or an analog of Tanaka prolongation for the (extrinsic) geometry of curves of flags of a vector space $W$ with respect to the action of a subgroup $G$ of the $GL(W)$. Under…

Differential Geometry · Mathematics 2011-10-04 Boris Doubrov , Igor Zelenko

For a given Fourier-Mukai equivalence of bounded derived categories of coherent sheaves on smooth quasi-projective varieties, we construct Fourier-Mukai equivalences of derived factorization categories of gauged Landau-Ginzburg (LG) models.…

Algebraic Geometry · Mathematics 2017-01-27 Yuki Hirano

In a talk at the conference {\it Geometrical Foundations of Gravity at Tartu 2017}, it was suggested that the affine spacetime connection could be associated with purely fictitious forces. This leads to gravitation in a flat and smooth…

General Relativity and Quantum Cosmology · Physics 2018-09-13 Tomi Koivisto

We demonstrate, by analogy with electromagnetism, that the geometric content in the theory of gravity is an indirect consequence of the fact that the gauge group in question is the Lorentz group SO(1,3). We hence construct field equations…

General Relativity and Quantum Cosmology · Physics 2012-01-24 Arpan Saha , Banibrata Mukhopadhyay