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In this paper we study a general class of conics starting from a quotient field. We give a group structure over these conics generalizing the construction of a group over the Pell hyperbola. Furthermore, we generalize the definition of…

Number Theory · Mathematics 2012-09-05 Stefano Barbero , Umberto Cerruti , Nadir Murru

We introduce the notion of $\pi$-cosupport as a new tool for the stable module category of a finite group scheme. In the case of a finite group, we use this to give a new proof of the classification of tensor ideal localising subcategories.…

Representation Theory · Mathematics 2017-01-09 Dave Benson , Srikanth B. Iyengar , Henning Krause , Julia Pevtsova

We study tensor categories that interpolate the representation categories of finite classical groups. There are (at least) two ways to approach these categories: via ultraproducts and via oligomorphic groups. Both have strengths and…

Representation Theory · Mathematics 2025-07-17 Nate Harman , Andrew Snowden

We show how to enlarge the covariance group of any classical field theory in such a way that the resulting "covariantized" theory is 'essentially equivalent' to the original. In particular, our technique will render any classical field…

Mathematical Physics · Physics 2010-08-20 Marco Castrillón López , Mark J. Gotay

In this paper, we develop the theory of Baer invariants for triples of groups. First, we focus on the general properties of the Baer invariant of triples. Second, we prove that the Baer invariant of a triple preserves direct limits of…

Algebraic Topology · Mathematics 2013-11-11 Zohreh Vasagh , Hanieh Mirebrahimi , Behrooz Mashayekhy

If $G$ is a finite classical group, linear or unitary in any characteristic, and orthogonal in odd characteristic, we give an approximate formula for $\chi(g)$ in which the error term is much smaller than the estimate, when $g\in G$ is an…

Group Theory · Mathematics 2025-07-18 Michael Larsen , Pham Huu Tiep

The standard P. A. Smith theory of p-group actions on spheres, disks, and euclidean spaces is extended to the case of p-group actions on tori (i.e., products of circles) and coupled with topological surgery theory to give a complete…

Geometric Topology · Mathematics 2007-11-20 Allan L. Edmonds

We give an exact coefficients formula of any infinite product of power series with constant term equal to $1$, by using structures from partitions of integers and permutation groups. This is an universal theorem for various of Binomial-type…

Combinatorics · Mathematics 2024-11-05 Kui-Yo Chen , Zhong-Tang Wu

The classical PCP theorem is arguably the most important achievement of classical complexity theory in the past quarter century. In recent years, researchers in quantum computational complexity have tried to identify approaches and develop…

Quantum Physics · Physics 2013-10-01 Dorit Aharonov , Itai Arad , Thomas Vidick

Based on the gauge semi-simple tensor extension of the Poincar\'e group another alternative approach to the cosmological term problem is proposed.

High Energy Physics - Theory · Physics 2015-05-27 Dmitrij V. Soroka , Vyacheslav A. Soroka

A classical theorem of Bochner asserts that the isometry group of a compact Riemannian manifold with negative Ricci curvature is finite. In this paper we give several extensions of Bochner's theorem by allowing "small" positive Ricci…

Differential Geometry · Mathematics 2022-08-04 Xiaoyang Chen , Fei Han

We introduce a sequent calculus with a simple restriction of Lambek's product rules that precisely captures the classical Tamari order, i.e., the partial order on fully-bracketed words (equivalently, binary trees) induced by a…

Logic in Computer Science · Computer Science 2017-01-12 Noam Zeilberger

Generalizations of classical theta functions are proposed that include any even number of analytic parameters for which conditions of quasi-periodicity are fulfilled and that are representations of extended Heisenberg group. Differential…

Mathematical Physics · Physics 2017-07-13 Yuriy Smilyanets

Complicated mathematical equations involving products of tensors with permutation symmetries, frequently encountered in fields such as general relativity and quantum chemistry (e.g., equations in high-order coupled cluster theories),…

Chemical Physics · Physics 2018-12-19 Zhendong Li , Sihong Shao , Wenjian Liu

Higher order tensor inversion is possible for even order. We have shown that a tensor group endowed with the Einstein (contracted) product is isomorphic to the general linear group of degree $n$. With the isomorphic group structures, we…

Numerical Analysis · Mathematics 2011-09-20 Michael Brazell , Na Li , Carmeliza Navasca , Christino Tamon

We prove that various classical conformal diffeomorphism groups, which are known to be essential [1], are in fact properly essential. This is a consequence of a local criterion on a conformal diffeomorphism in the form of a cohomological…

Symplectic Geometry · Mathematics 2011-08-01 Stefan Müller , Peter Spaeth

We study the decompositions into irreducible components of tensor products and restrictions of irreducible representations of classical Lie groups as the rank of the group goes to infinity. We prove the Law of Large Numbers for the random…

Representation Theory · Mathematics 2016-11-18 Alexey Bufetov , Vadim Gorin

Using Mackey functors, we provide a general framework for classifying torsors of algebraic tori in terms of Brauer groups of finite field extensions of the base field. This generalizes Blunk's description of the tori associated to del Pezzo…

Algebraic Geometry · Mathematics 2025-09-12 Alexander Duncan , Pankaj Singh

This thesis is concerned with the representation theory of the Heisenberg group and its applications to both classical and quantum mechanics. We continue the development of $p$-mechanics which is a consistent physical theory capable of…

Quantum Physics · Physics 2007-05-23 Alastair Brodlie

There are several extensions of the classical Banach Fixed Point Theorem in technical literature. A branch of generalizations replaces usual contractivity by weaker but still effective assumptions. Our note follows this stream, presenting…

Functional Analysis · Mathematics 2016-05-13 Mihály Bessenyei