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Related papers: On groupoids with Bol-Moufang type identities

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We present a new method, involving monads and comonads from category theory, to help establish a certain type of equivalence of subcategories. As a case study we consider the category of topological gradings of $C^*$-algebras over a fixed…

Operator Algebras · Mathematics 2025-12-09 Erik Bédos , S. Kaliszewski , John Quigg

In this paper we present Cohen-Montgomery-type duality theorems for groupoid (co)actions.

Rings and Algebras · Mathematics 2015-11-12 Daiana Flôres , Antonio Paques

In this paper using split extensions of group-groupoids we obtain the notion of crossed modules over group-grouoids which are also called 2-groups and we prove a categorical equivalence of these types of crossed modules and double…

Category Theory · Mathematics 2021-02-16 Sedat Temel , Tunçar Şahan , Osman Mucuk

A new subclass of AG-groupoids, so called, cyclic associative Abel-Grassman groupoids or CA-AG-groupoid is studied. These have been enumerated up to order $6$. A test for the verification of cyclic associativity for an arbitrary AG-groupoid…

Group Theory · Mathematics 2015-10-07 Muhammad Iqbal , Imtiaz Ahmad , Muhammad Shah , Muhammad Irfan Ali

We study normed groupoids with dilations and their induced deformations.

Metric Geometry · Mathematics 2011-12-24 Marius Buliga

We investigate the Banach Lie groupoids and inverse semigroups naturally associated to W*-algebras. We also present statements describing relationship between these groupoids and the Banach Poisson geometry which follows in the canonical…

Operator Algebras · Mathematics 2012-02-02 Anatol Odzijewicz , Aneta Sliżewska

We derive several symmetric identities for Bernoulli and Euler polynomials which imply some known identities. Our proofs depend on the new technique developed in part I and some identities obtained in [European J. Combin. 24(2003),…

Number Theory · Mathematics 2007-05-23 Zhi-Wei Sun , Hao Pan

We show how one can associate to a given class of finite type G-structures a classifying Lie algebroid. The corresponding Lie groupoid gives models for the different geometries that one can find in the class, and encodes also the different…

Differential Geometry · Mathematics 2008-07-25 Rui Loja Fernandes , Ivan Struchiner

We define a notion of weak omega-category internal to a model of Martin-L\"of type theory, and prove that each type bears a canonical weak omega-category structure obtained from the tower of iterated identity types over that type. We show…

Logic · Mathematics 2011-10-17 Benno van den Berg , Richard Garner

Let F be a non-Archimedean locally compact field of residue characteristic p, let D be a finite dimensional central division F-algebra and let l be a prime number different from p. We develop a theory of l-modular types for the group…

Number Theory · Mathematics 2014-04-04 Alberto Minguez , Vincent Sécherre

For a fixed odd prime $\ell$, we present new families of identities defined on various subposets of the poset of isomorphism classes of finite abelian $\ell$-groups, generalizing identities of Hall and Cohen-Lenstra. We also present a…

Combinatorics · Mathematics 2016-05-30 Derek Garton

We study minimal left ideals in Steinberg algebras of Hausdorff groupoids. We establish a relationship between minimal left ideals in the algebra and open singletons in the unit space of the groupoid. We apply this to obtain results about…

We combine classic stability results for foliations with recent results on deformations of Lie groupoids and Lie algebroids to provide a cohomological characterization for rigidity of compact foliations on compact manifolds.

Differential Geometry · Mathematics 2019-07-31 Matias del Hoyo , Rui Loja Fernandes

Suppose $G$ is a finite group acting on an Abelian variety $A$ such that the coarse moduli space $A/G$ is smooth. Using the recent classification result due to Auffarth, Lucchini Arteche, and Quezada, we construct an orbifold semiorthogonal…

Algebraic Geometry · Mathematics 2024-06-05 Bronson Lim , Franco Rota

Let B be a p-block of a finite group G with abelian defect group D such that S\unlhd G, S'=S, G/Z(S)\le\Aut(S) and S/Z(S) is a sporadic simple group. We show that B is isotypic to its Brauer correspondent in N_G(D) in the sense of Brou\'e.…

Representation Theory · Mathematics 2015-09-01 Benjamin Sambale

We derive several identities that feature irreducible characters of the general linear, the symplectic, the orthogonal, and the special orthogonal groups. All the identities feature characters that are indexed by shapes that are "nearly"…

Representation Theory · Mathematics 2007-05-23 Christian Krattenthaler

We introduce nil-Hecke algebras for Weyl groupoids. We describe a basis and some properties of these algebras which lead to a notion of Bruhat order for Weyl groupoids.

Rings and Algebras · Mathematics 2016-09-30 Iván Angiono , Hiroyuki Yamane

We classify toroidal solenoids defined by non-singular $n\times n$-matrices $A$ with integer coefficients by studying associated first \^Cech cohomology groups. In a previous work, we classified the groups in the case $n=2$ using…

Number Theory · Mathematics 2022-09-30 Maria Sabitova

Our paper deals about identities involving Bell polynomials. Some identities on Bell polynomials derived using generating function and successive derivatives of binomial type sequences. We give some relations between Bell polynomials and…

Combinatorics · Mathematics 2008-06-24 Miloud Mihoubi

In this paper we investigate some properties for the q-Euler numbers ans polymials. From these properties we give some identities on the Bernstein polymials and q-Euler polynpmials.

Number Theory · Mathematics 2011-01-14 Abdelmejid Bayad , Taekyun Kim , Byunje Lee , Seog-Hoon Rim