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The variety of bicommutative algebras consists of all nonassociative algebras satisfying the polynomial identities of right- and left-commutativity $(x_1x_2)x_3=(x_1x_3)x_2$ and $x_1(x_2x_3)=x_2(x_1x_3)$. Let $F_d$ be the free $d$-generated…

Rings and Algebras · Mathematics 2022-10-18 Vesselin Drensky

Let $\mathcal{G}$ be an algebraic quantum group. We introduce an equivariant algebraic $kk$-theory for $\mathcal{G}$-module algebras. We study an adjointness theorem related with smash product and trivial action. We also discuss a duality…

K-Theory and Homology · Mathematics 2019-04-19 Eugenia Ellis

In this article we consider partial abelianization of associative algebra with respect to a subalgebra. This notion is a generalization of usual abelianization of associative algebra and has an application in Quantum Mechanics and Quantum…

Representation Theory · Mathematics 2019-12-12 Anna Kocherova , Ilya Zhdanovskiy

We introduce an equivariant algebraic kk-theory for G-algebras and G-graded algebras. We study some adjointness theorems related with crossed product, trivial action, induction and restriction. In particular we obtain an algebraic version…

K-Theory and Homology · Mathematics 2014-08-08 Eugenia Ellis

An Eggert-operad is a variant of Mac Lane's notion of a PROP, for which not only bijective maps, but all maps between standard finite sets, are part of the structure. We construct the free Eggert-operad and prove the universal property it…

K-Theory and Homology · Mathematics 2023-08-14 Roman Haak

We expand our previously founded basic theory of equiresidual algebraic geometry over an arbitrary commutative field, to a well-behaved theory of (equiresidual) algebraic varieties over a commutative field, thanks to the generalisation of…

Algebraic Geometry · Mathematics 2020-03-17 Jean Barbet-Berthet

The category of crossed complexes gives an algebraic model of the category of $CW$-complexes and cellular maps. We explain basic results on crossed complexes which allow the computation of free crossed resolutions of graph products of…

Algebraic Topology · Mathematics 2007-05-23 Ronald Brown , Manuel Bullejos , Timothy Porter

In this paper, we give a necessary and sufficient condition that discrete Morse functions on a digraph can be extended to be Morse functions on its transitive closure, from this we can extend the Morse theory to digraphs by using…

Combinatorics · Mathematics 2021-11-16 Yong Lin , Chong Wang , Shing-Tung Yau

We derive a discrete analogue of Morse-Bott theory on CW complexes and use this discrete Morse-Bott function to do some Conley theory analysis. It turns out that our discrete Morse-Bott theory is indeed a generalization of Forman's discrete…

Combinatorics · Mathematics 2017-11-30 Sylvia Yaptieu

A class of algebras is constructed using free fermions and the invariant antisymmetric tensors associated with irreducible holonomy groups. (This version contains minor typographical corrections and some additional references. )

High Energy Physics - Theory · Physics 2014-01-21 P. S. Howe , G. Papadopoulos , P. C. West

The notion of associativity (which differs from the straightforward generalization of the usual associativity given by the move of parentheses in the relevant expression) for operations of high arity is introduced. It is proved that the…

Category Theory · Mathematics 2019-05-21 Dali Zangurashvili

We develop an invariant deformation theory, in a form accessible to practice, for affine schemes $W$ equipped with an action of a reductive algebraic group $G$. Given the defining equations of a $G$-invariant subscheme $X \subset W$, we…

Algebraic Geometry · Mathematics 2015-03-12 Christian Lehn , Ronan Terpereau

E. Sk\"oldberg's Morse Theory from an Algebraic Viewpoint and M. J\"ollenbeck's Algebraic Discrete Morse Theory and Applications to Commutative Algebra, which is the algebraic generalization of R. Forman's discrete Morse Theory for Cell…

Algebraic Topology · Mathematics 2019-08-08 Leon Lampret , Aleš Vavpetič

We show that an attack based on the linear decomposition method introduced by the author can be efficiently applied to the new version of the MOR scheme proposed in \cite{BMSS}. We draw attention to some inaccuracies in the description of…

Cryptography and Security · Computer Science 2019-11-05 Vitaly Roman'kov

We examine free orientation-reversing group actions on orientable handlebodies, and free actions on nonorientable handlebodies. A classification theorem is obtained, giving the equivalence classes and weak equivalence classes of free…

Geometric Topology · Mathematics 2007-05-23 Antonio F. Costa , Darryl McCullough

Several results on presenting an affine algebraic group variety as a product of algebraic varieties are obtained.

Algebraic Geometry · Mathematics 2021-02-17 Vladimir L. Popov

We give a detailed description of the torsors that correspond to multiloop algebras. These algebras are twisted forms of simple Lie algebras extended over Laurent polynomial rings. They play a crucial role in the construction of Extended…

Rings and Algebras · Mathematics 2012-02-24 Philippe Gille , Arturo Pianzola

This article deals with the notion of factorability. Elements of a factorable group or monoid possess a normal form, which leads to a small complex homotopy equivalent to its bar complex, thus computing its homology. We investigate the…

Group Theory · Mathematics 2014-12-10 Alexander Heß , Viktoriya Ozornova

We study the structure of combinatorial Burnside groups, which receive equivariant birational invariants of actions of finite groups on algebraic varieties.

Algebraic Geometry · Mathematics 2021-12-28 Yuri Tschinkel , Kaiqi Yang , Zhijia Zhang

Chevalley's theorem states that every smooth connected algebraic group over a perfect field is an extension of an abelian variety by a smooth connected affine group. That fails when the base field is not perfect. We define a pseudo-abelian…

Algebraic Geometry · Mathematics 2013-02-28 Burt Totaro