Results 1 to 10 of about 2,964,498 (250)
Squarefree vertex cover algebras [PDF]
arXiv, 2011 In this paper we introduce squarefree vertex cover algebras. We study the question when these algebras coincide with the ordinary vertex cover algebras and when these algebras are standard graded. In this context we exhibit a duality theorem for squarefree vertex cover algebras.
Shamila Bayati, Farhad Rahmati
arxiv +7 more sources
Quotients of the Highwater algebra and its cover [PDF]
Journal of Algebra, 2022 46 ...
Clara Franchi +2 more
semanticscholar +4 more sources
On Max-Plus Algebra and Its Application on Image Steganography
The Scientific World Journal, 2018 We propose a new steganography method to hide an image into another image using matrix multiplication operations on max-plus algebra. This is especially interesting because the matrix used in encoding or information disguises generally has an inverse ...
Kiswara Agung Santoso +2 more
doaj +2 more sources
On the period map for abelian covers of algebraic varieties [PDF]
arXiv, 1996 We show that infinitesimal Torelli for $n$-forms holds for abelian covers of algebraic varieties of dimension $n\ge 2$, under some explicit ampleness assumptions on the building data of the cover. Moreover, we prove a variational Torelli result for some families of abelian covers.
Rita Pardini
arxiv +3 more sources
Multipliers and covers of perfect diassociative algebras [PDF]
Journal of Algebra and Its Applications, 2023 The paper concerns perfect diassociative algebras and their implications to the theory of central extensions. It is first established that perfect diassociative algebras have strong ties with universal central extensions. Then, using a known characterization of the multiplier in terms of a free presentation, we obtain a special cover for perfect ...
Erik Mainellis
openalex +3 more sources
Types in reductive 𝑝-adic groups: The Hecke algebra of a cover
, 2000 In this paper, F is a non-Archimedean local field and G is the group of F -points of a connected reductive algebraic group defined over F . Also, τ is an irreducible representation of a compact open subgroup J of G, the pair (J, τ) being a type in G. The
Colin J. Bushnell, Philip Kutzko
openalex +2 more sources
The Center Of A Generalized Effect Algebra
Demonstratio Mathematica, 2014 In this article, we study the center of a generalized effect algebra (GEA), relate it to the exocenter, and in case the GEA is centrally orthocomplete (a COGEA), relate it to the exocentral cover system. Our main results are that the center of a COGEA is
Foulis D. J., Pulmannová S.
doaj +2 more sources
Homogeneous orthocomplete effect algebras are covered by MV-algebras [PDF]
Fuzzy Sets and Systems, 2012 The aim of our paper is twofold. First, we thoroughly study the set of meager elements Mea(E) and the set of hypermeager elements HMea(E) in the setting of homogeneous effect algebras E. Second, we study the property (W+) and the maximality property introduced by Tkadlec as common generalizations of orthocomplete and lattice effect algebras.
Josef Niederle, Jan Paseka
+7 more sources
Symbolic powers of monomial ideals and vertex cover algebras [PDF]
arXiv, 2005 We introduce and study vertex cover algebras of weighted simplicial complexes. These algebras are special classes of symbolic Rees algebras. We show that symbolic Rees algebras of monomial ideals are finitely generated and that such an algebra is normal and Cohen-Macaulay if the monomial ideal is squarefree. For a simple graph, the vertex cover algebra
Juergen Herzog +2 more
arxiv +3 more sources
Coverings of foliation algebras [PDF]
arXiv, 2017 This article is devoted to the geometric construction which states a natural correspondence between topological coverings of a foliated manifolds and noncommutative coverings of the operator algebras. However this correspondence is not one to one because there are noncommutaive coverings of foliations which do not comply with discussed in this article ...
arxiv +3 more sources