Results 81 to 90 of about 444,260 (331)

Finite Cartan Graphs Attached to Nichols Algebras of Diagonal Type

open access: yesAdvances in Mathematical Physics, 2021
Nichols algebras are fundamental objects in the construction of quantized enveloping algebras and in the classification of pointed Hopf algebras by the lifting method of Andruskiewitsch and Schneider. The structure of Cartan graphs can be attached to any
Chen Qian, Jing Wang
doaj   +1 more source

Rank-finiteness for modular categories

open access: yesJournal of the American Mathematical Society, 2015
We prove a rank-finiteness conjecture for modular categories: up to equivalence, there are only finitely many modular categories of any fixed rank. Our technical advance is a generalization of the Cauchy theorem in group theory to the context of spherical fusion categories.
Siu-Hung Ng   +4 more
openaire   +4 more sources

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach   +6 more
wiley   +1 more source

On torsion-free periodic rings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We characterize several large classes of periodic rings: periodic rings with identity, finite-rank torsion-free periodic rings, and rank-two torsion-free periodic rings.
R. R. Khazal, S. Breaz, G. Calugareanu
doaj   +1 more source

The Rank Distribution of Sparse Random Linear Network Coding

open access: yesIEEE Access, 2019
Sparse random linear network coding (SRLNC) is a promising solution for reducing the complexity of random linear network coding (RLNC). RLNC can be modeled as a linear operator channel (LOC).
Wenlin Chen, Fang Lu, Yan Dong
doaj   +1 more source

On nonselfadjoint perturbations of finite rank

open access: yesJournal of Mathematical Analysis and Applications, 1974
The problem solved in the present paper has been prompted by the remarks which V. B. Lidskii added to the Russian translation of the book of S. H. Gould [l, 21. These remarks were made following the directives of M. G. Krein. The book of Gould on intermediate problems deals with selfadjoint eigenvalue problems.
openaire   +2 more sources

Residual Stress States in Microstructurally Graded PBF–LB/M Austenitic Steel Components

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines microstructurally graded 316L rectangular tube profiles fabricated via PBF–LB/M using a dual‐laser system. A 1 kW top‐hat and a 400 W Gaussian laser create distinct grain sizes and crystallographic texture. Mechanical properties are linked to microstructural evolution driven by processing conditions.
Nico Möller   +5 more
wiley   +1 more source

Algebraic Properties of Toeplitz Operators on the Polydisk

open access: yesAbstract and Applied Analysis, 2011
We discuss some algebraic properties of Toeplitz operators on the Bergman space of the polydisk Dn. Firstly, we introduce Toeplitz operators with quasihomogeneous symbols and property (P).
Bo Zhang, Yanyue Shi, Yufeng Lu
doaj   +1 more source

Microstructural Evolution and Mechanical Properties of a Medium‐Manganese Steel Manufactured by Laser‐Based Powder Bed Fusion of Metals

open access: yesAdvanced Engineering Materials, EarlyView.
Fe–12Mn–0.2C medium‐manganese steel is processed by laser‐based powder bed fusion of metals using blended as well as pre‐alloyed powder. Various scanning speeds are used to determine the influence of energy deposition rate on microstructure and mechanical properties.
Leoni Hübner   +4 more
wiley   +1 more source

On the structure of artinian-by-(finite rank) modules over generalized soluble groups

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Matematika, 2014
Let R be a ring and G a group. An R-module A is said to be artinian-by-(finite rank), if $\mathrm{Tor}_R(A)$ is artinian and $A/\mathrm{Tor}_R(A)$ has finite R-rank.
V.A. Chupordia
doaj  

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