Results 81 to 90 of about 2,942,043 (344)
The standard form of a representation-finite algebra
, 1983 . - The importance of covering techniques for the investigation of the representations of finite-dimensional algebras is well-known since [RI 1] and [BG]. When the algebra A admits only finitely many isomorphism classes of indecomposable representations,
O. Bretscher, P. Gabriel
semanticscholar +1 more source
Thread Algebra with Multi-Level Strategies
Fundamenta Informaticae, 2006 In a previous paper, we developed an algebraic theory about threads and multi-threading based on the assumption that a deterministic interleaving strategy determines how threads are interleaved.
J. Bergstra, K. Middelburg
semanticscholar +1 more source
Covering certain monolithic groups with proper subgroups
, 2012 Given a finite non-cyclic group $G$, call $\sigma(G)$ the least number of proper subgroups of $G$ needed to cover $G$. In this paper we give lower and upper bounds for $\sigma(G)$ for $G$ a group with a unique minimal normal subgroup $N$ isomorphic to ...
Garonzi, Martino
core +2 more sources
In Situ Graph Reasoning and Knowledge Expansion Using Graph‐PRefLexOR
Advanced Intelligent Discovery, EarlyView.Graph‐PRefLexOR is a novel framework that enhances language models with in situ graph reasoning, symbolic abstraction, and recursive refinement. By integrating graph‐based representations into generative tasks, the approach enables interpretable, multistep reasoning.
Markus J. Buehler
wiley +1 more source
On the dimension of the minimal vertex cover semigroup ring of an unmixed bipartite graph
Le Matematiche, 2008 In a paper in 2008, Herzog, Hibi and Ohsugi introduced and studied the semigroup ring associated to the set of minimal vertex covers of an unmixed bipartite graph.
Cristina Bertone, Vincenzo Micale
doaj
Territorial planning of transport network with landslide susceptibility mapping. Case study: Timiş-Cerna corridor, Romania [PDF]
Urbanism. Arhitectura. Constructii, 2022 In this paper we present the importance of landslide susceptibility mapping for territorial planning applications on local and regional transportation networks.
Beniamin Stoica-Fuchs
doaj
On Coverings and Hyperalgebras of Affine Algebraic Groups, III [PDF]
American Journal of Mathematics, 1975 Over an algebraically closed field of characteristic zero, the universal group covering of a connected affine algebraic group, if such exists, can be constructed canonically from its Lie algebra only. In particular the isomorphism classes of simply connected affine algebraic groups are in 1-1 correspondence with the isomorphism classes of finite ...
openaire +4 more sources
Advanced Intelligent Systems, EarlyView.This article offers a comprehensive review of topic modeling techniques, tracing their evolution from inception to recent developments. It explores methods such as latent Dirichlet allocation, latent semantic analysis, non‐negative matrix factorization, probabilistic latent semantic analysis, Top2Vec, and BERTopic, highlighting their strengths ...
Pratima Kumari +6 more
wiley +1 more source
The standard graded property for vertex cover algebras of quasi-trees
Le Matematiche, 2008 In [5] the authors characterize the vertex cover algebras which are tandard graded. In this paper we give a simple combinatorial criterion for the standard graded property of vertex cover algebras in the case of quasi-trees.
Alexandru Costantinescu, Le Dinh Nam
doaj
Remedies for Misapplications of Sylvester’s Criterion: A Pedagogic Illustration
Spreadsheets in Education, 2021 Sylvester’s criterion, which verifies the positive definiteness of any real symmetric matrix by examining the signs of all leading principal minors, is an excellent analytical tool.
Clarence C.Y. Kwan
doaj