Results 81 to 90 of about 3,534,092 (344)
Notes on parameters of quiver Hecke algebras
, 2012 Varagnolo-Vasserot and Rouquier proved that, in a symmetric generalized Cartan matrix case, the simple modules over the quiver Hecke algebra with a special parameter correspond to the upper global basis.
Kashiwara, Masaki
core +1 more source
A restarted Lanczos approximation to functions of a symmetric matrix
, 2010 In this paper the error term in the 'first' method of Eiermann & Ernst (2006, SIAM J. Numer. Anal., 44, 2481-2504) for restarting the Lanczos approximation of the matrix-vector product f (A)b, where A ∈ ℝ n×n is symmetric, is re-derived and expressed as ...
M. Ilic, I. Turner, Daniel P. Simpson
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.In this study, the mechanical response of Y‐shaped core sandwich beams under compressive loading is investigated, using deep feed‐forward neural networks (DFNNs) for predictive modeling. The DFNN model accurately captures stress–strain behavior, influenced by design parameters and loading rates.
Ali Khalvandi +4 more
wiley +1 more source
Nodal Decompositions of a Symmetric Matrix
International Mathematics Research NoticesAbstract Analyzing nodal domains is a way to discern the structure of eigenvectors of operators on a graph. We give a new definition extending the concept of nodal domains to arbitrary signed graphs, and therefore to arbitrary symmetric matrices.
McKenzie, Theo, Urschel, John
openaire +2 more sources
Advanced Engineering Materials, EarlyView.This study explores aerosol jet‐printed (AJP) surface roughness, its effects on the performance of microwave electronics, and its process contributors. First, an electromagnetic model is vetted for AJP's unique roughness signature. Simulations are built which show process‐induced roughness is as significant as conductor resistivity in driving microwave
Christopher Areias, Alkim Akyurtlu
wiley +1 more source
Advanced Engineering Materials, EarlyView.Laser powder‐bed fusion (L‐PBF) can produce dense WE43 magnesium alloy parts, but their mechanical properties are limited by a nonhomogeneous microstructure. This study investigates the effects of varying direct aging (T5) and artificial age‐hardening (T6) conditions on microstructure and strength. Optimized T6 treatment significantly improves strength
Prathviraj Upadhyaya +5 more
wiley +1 more source
Three determinants evaluated in circular products [PDF]
Contributions to Mathematics, 2022 Shuling Gao, Wenchang Chu
doaj +1 more source
Heuristics for a Matrix Symmetrization Problem [PDF]
, 2008 We consider the following problem: given a square, nonsymmetric, $(0,1)$-matrix, find a permutation of its columns that yields a zero-free diagonal and maximizes the symmetry. The problem is known to be NP-hard. We propose a fast iterative-improvement based heuristic and evaluate the performance of the heuristic on a large set of matrices.
openaire +3 more sources
Shape Memory Polymer‐Based Hook‐and‐Loop Fastener for Robust Bonding and on‐Demand Easy Separation
Advanced Engineering Materials, EarlyView.A 3D shape memory polymer‐based hook‐and‐loop fastener, fabricated using projection microstereolithography and molding, offers tunable bonding strength through temperature control. When heated from 25 to 70 °C, the fastener softens and deforms easily, reducing bonding strength by 20‐fold for on‐demand easy separation.
Chen Yang +5 more
wiley +1 more source
DECOMPOSITION METHOD FOR SOLVING FULLY FUZZY LINEAR SYSTEMS [PDF]
Iranian Journal of Optimization, 2009 In this paper, we investigate the existence of a positive solution of fully fuzzy linear equation systems. This paper mainly to discuss a new decomposition of a nonsingular fuzzy matrix, the symmetric times triangular (ST) decomposition.
M. MOSLEH, M. OTADI, A. KHANMIRZAIE
doaj