Results 41 to 50 of about 1,701 (167)
Enochs conjecture for cotorsion pairs over recollements of exact categories
Open MathematicsLet (A,C,ℬ)\left({\mathcal{A}},{\mathcal{C}},{\mathcal{ {\mathcal B} }}) be a recollement of exact categories. An explicit procedure about gluing complete hereditary cotorsion pairs from A{\mathcal{A}} and ℬ{\mathcal{ {\mathcal B} }} to C{\mathcal{C ...
Hu Jiangsheng +3 more
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Stable Sheave Moduli of Rank 2 with Chern Classes c 1 = -1; c2 = 2; c3 = 0 on Q3
Моделирование и анализ информационных систем, 2015 In this paper we consider the scheme MQ( 2;¡1; 2; 0 ) of stable torsion free sheaves of rank 2 with Chern classes c1 = -1, c2 = 2, c3 = 0 on a smooth 3-dimensional projective quadric Q.
A. D. Uvarov
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Projective classes as images of accessible functors
Journal of Logic and Computation, 2022 AbstractWe are dealing with projective classes (in short $\textrm {PC}$) over first-order vocabularies with no restrictions on the (possibly infinite) arities of relation or operation symbols. We verify that $\textrm {PC}(\mathbin {\mathscr {L}}_{\infty \lambda })=\textrm {RPC}(\mathbin {\mathscr {L}}_{\infty \lambda })$ for any infinite cardinal ...
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The Journal of Political Theory, Political Philosophy and Sociology of Politics Politeia, 2020 The concept “multitude”, popular in political philosophy, largely owes its entrance into the modern political vocabulary to the efforts of Antonio Negri, the Italian philosopher. His research from the 1980s and 1990s gave rise to a synthetic philosophical theory that views multitude as a key element in the political struggle of the left, thereby giving
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A class of projective planes of cubic order [PDF]
Proceedings of the American Mathematical Society, 1969 systems of such planes. Throughout the paper F will be a field with characteristic not equal to 2 or 3, x3 -axX- will be a cubic irreducible over F, and V will be the three dimensional vector space over F consisting of triples of the form (a, b, c), a, b, cECF.
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On Presented Dimensions of Modules and Rings
International Journal of Mathematics and Mathematical Sciences, 2010 We define the presented dimensions for modules and rings to measure how far away a module is from having an infinite finite presentation and develop ways to compute the projective dimension of a module with a finite presented dimension and the right ...
Dexu Zhou, Zhiwei Gong
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An Overview of Some New Classes of Abelian p-Groups [PDF]
Advances in Group Theory and ApplicationsThis paper surveys results obtained in the last twelve years that gave origin to several new classes of abelian p-groups. These results have their source in the definition of the intrinsic algebraic entropy of the endomorphisms of p-groups, and are ...
Luigi Salce
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On a Certain Class of Self-Projective Surfaces [PDF]
Transactions of the American Mathematical Society, 1913 Let P be a point of a surface S, and let R be a non-vanishing two-dimensional portion of S, finite or infinite in extent, such that P is orle of its interior points and such that the homogeneous coordinates t1, *-*, t4 of any point of R may be expressed as convergent series of positive integral powers of two parameters u and v.
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Locally adequate semigroup algebras
Open Mathematics, 2016 We build up a multiplicative basis for a locally adequate concordant semigroup algebra by constructing Rukolaĭne idempotents. This allows us to decompose the locally adequate concordant semigroup algebra into a direct product of primitive abundant 0-J*$0{
Ji Yingdan, Luo Yanfeng
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Starter Projects in Python Programming Classes
, 2022 Starter projects are part of constructionist learning arrangements (1, 2). The term was mainly coined by the Scratch community and describes a simple, executable program that is designed to encourage copying, exploring and further development. This contribution first discusses three types: test programs, examples that illustrate programming techniques ...
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