Results 71 to 80 of about 3,158,775 (365)
Galois Coverings of Weakly Shod Algebras [PDF]
Communications in Algebra, 2010 We investigate the Galois coverings of weakly shod algebras. For a weakly shod algebra not quasi-tilted of canonical type, we establish a correspondence between its Galois coverings and the Galois coverings of its connecting component. As a consequence, we show that a weakly shod algebra is simply connected if and only if its first Hochschild ...
openaire +4 more sources
Advanced Theory and Simulations, EarlyView.FreqD‐LBM simulates the oscillatory flow at the surface of a QCM‐D resonator in the presence of structured adsorbates. It derives shifts of frequency and bandwidth (equivalent to dissipation) on different overtones. Applications include rough surfaces, adsorbed rigid particles, adsorbed viscoelastic particles, spheres floating freely above the surface,
Diethelm Johannsmann +5 more
wiley +1 more source
Level 3 basic linear algebra subprograms for sparse matrices: a user-level interface
TOMS, 1997 This article proposes a set of Level 3 Basic Linear Algebra Subprograms and associated kernels for sparse matrices. A major goal is to design and develop a common framework to enable efficient, and portable, implementations of iterative algorithms for ...
I. Duff +3 more
semanticscholar +1 more source
Crystals and affine Hecke algebras of type D
, 2007 The Lascoux-Leclerc-Thibon-Ariki theory asserts that the K-group of the representations of the affine Hecke algebras of type A is isomorphic to the algebra of functions on the maximal unipotent subgroup of the group associated with a Lie algebra $g ...
Kashiwara, Masaki, Miemietz, Vanessa
core +2 more sources
Advanced Theory and Simulations, EarlyView.Increasing half‐cycles intensifies turbulence due to enhanced vortex interactions and flow separation at the diverged‐outlets. Longer wavy ducts are shown to increase flow acceleration, resulting in greater output velocities and more turbulent‐kinetic‐energy production. Wave‐period plays a crucial role in determining turbulent intensity, with amplitude
I. L. Animasaun +2 more
wiley +1 more source
Cleaning Data With Selection Rules
IEEE Access, 2022 In this paper, we propose and study a type of tuple-level constraint that arises from the selection operator $\sigma $ of relational algebra and that closely resembles the concepts of tuple-level denial constraints.
Toon Boeckling +2 more
doaj +1 more source
On the universal coverings of algebraic surfaces [PDF]
Annales Scientifiques de l’École Normale Supérieure, 1998 Abstract In this paper we use some recent developments in Nonabelian Hodge theory to study the existence of holomorphic functions on the universal coverings of algebraic surfaces. In particular we prove that if the fundamental group of an algebraic surface is reductive then its universal covering is holomorphically convex.
Ludmil Katzarkov, Mohan Ramachandran
openaire +2 more sources
Advanced Theory and Simulations, EarlyView.FMint is introduced as a multi‐modal foundation model that integrates human‐designed solvers and data‐driven methods for fast, accurate simulation of dynamical systems. FMint leverages in‐context learning within a transformer‐based framework to refine coarse numerical solutions.
Zezheng Song, Jiaxin Yuan, Haizhao Yang
wiley +1 more source
On the Hilbert series of vertex cover algebras of Cohen-Macaulay bipartite graphs
Le Matematiche, 2010 We study the Hilbert function and the Hilbert series of the vertex cover algebra A(G), where G is a Cohen-Macaulay bipartite graph.
Cristian Ion
doaj
The projectable hull of an archimedean $ell$-group with weak unit [PDF]
Categories and General Algebraic Structures with Applications, 2017 The much-studied projectable hull of an $ell$-group $Gleq pG$ is an essential extension, so that, in the case that $G$ is archimedean with weak unit, ``$Gin {bf W}$", we have for the Yosida representation spaces a ``covering map" $YG leftarrow YpG$.
Anthony W. Hager, Warren Wm. McGovern
doaj