Results 81 to 90 of about 31,002 (199)

Coupled Clustering in Hierarchical Matrices for the Oseen Problem

International Journal for Numerical Methods in Fluids, Volume 98, Issue 6, Page 751-765, June 2026.
Fluid flow problems can be modelled by the Navier‐Stokes or, after linearization, by the Oseen equations. Their discretization results in linear systems in saddle point form which are typically very large and need to be solved iteratively. We propose a novel block structure for hierarchical matrices which is then used to build preconditioners for the ...
Jonas Grams, Sabine Le Borne
wiley   +1 more source

SCFT/VOA correspondence via Ω-deformation

Journal of High Energy Physics, 2019
We investigate an alternative approach to the correspondence of four­ dimensional N $$ \mathcal{N} $$ = 2 superconformal theories and two-dimensional vertex operator algebras, in the framework of the Ω-deformation of supersymmetric gauge theories.
Saebyeok Jeong
doaj   +1 more source

Investigating self-similar groups using their finite $L$-presentation [PDF]

, 2012
Self-similar groups provide a rich source of groups with interesting properties; e.g., infinite torsion groups (Burnside groups) and groups with an intermediate word growth.
Hartung, René
core  

A Novel Mixed‐Hybrid, Higher‐Order Accurate Formulation for Kirchhoff–Love Shells

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT This paper presents a novel mixed‐hybrid finite element formulation for Kirchhoff–Love shells, designed to enable the use of standard C0$C^0$‐continuous higher‐order Lagrange elements. This is possible by introducing the components of the moment tensor as a primary unknown alongside the displacement vector, circumventing the need for C1$C^1 ...
Jonas Neumeyer, Thomas‐Peter Fries
wiley   +1 more source

Brane expansions for anti-symmetric line operator index

Journal of High Energy Physics
Based on the D5-brane realization of Wilson line operators in anti-symmetric representations, we propose brane expansion formulas for I N,k , the Schur index of N $$ \mathcal{N} $$ = 4 U(N) SYM decorated by line operators in the anti-symmetric ...
Yosuke Imamura, Masato Inoue
doaj   +1 more source

Uniform distribution of Hasse invariants

International Journal of Mathematics and Mathematical Sciences, 1985
I. Schur's study of simple algebras around the turn of the century, and subsequent investigations by R. Brauer, E. Witt and others, were later reformulated in terms of what is now called the Schur subgroup of the Brauer group.
R. A. Mollin
doaj   +1 more source

Periodic Scenario Trees: A Novel Framework for Robust Periodic Invariance and Stabilization of Constrained Uncertain Linear Systems

International Journal of Robust and Nonlinear Control, Volume 36, Issue 9, Page 5069-5086, June 2026.
ABSTRACT This work proposes a new framework for stabilizing uncertain linear systems and for determining robust periodic invariant sets and their associated control laws for constrained uncertain linear systems. Necessary and sufficient conditions for stabilizability by periodic controllers are stated and proven using finite step Lyapunov functions for
Yehia Abdelsalam, Sankaranarayanan Subramanian, Sebastian Engell   +2 more
wiley   +1 more source

Employer Training Interventions in Supported Employment Workplaces and Their Impact on Hiring Attitudes

International Journal of Training and Development, Volume 30, Issue 2, Page 213-228, June 2026.
ABSTRACT This study aims to investigate the effectiveness of training interventions in public, institutional or private organizations for promoting positive attitudes among employers towards hiring individuals with intellectual developmental disabilities (IDD) in supported employment settings. The study included 60 employers, divided into three groups:
Miri Ben‐Amram, Orly Shapira‐Lishchinsky   +1 more
wiley   +1 more source

N $$ \mathcal{N} $$ = 4 SYM line defect Schur index and semiclassical string

Journal of High Energy Physics
The giant graviton expansion of the line defect Schur index in four dimensional N 4 $$ \mathcal{N}4 $$ U(N) SYM was recently proposed in arXiv:2403.11543 to be captured in the dual string theory by counting fluctuations states of two half-infinite ...
M. Beccaria
doaj   +1 more source

Fault-tolerant control for nonlinear singular systems with time-varying delay based on fault diagnosis observer

Journal of Hebei University of Science and Technology, 2017
In order to solve the security and reliability problems of the system control in the control theory, considering that time-varying delay is widespread in many systems, thinking about solving problems by fault diagnosis and fault-tolerant control, and ...
Qiaoqiao FAN, Xuetao SHI, Lianqing SU
doaj   +1 more source