Results 31 to 40 of about 10,041,383 (202)

An holomorphic study of Smarandache automorphic and cross inverse property loops [PDF]

open access: yes, 2008
By studying the holomorphic structure of automorphic inverse property uasigroups and loops[AIPQ and (AIPL)] and cross inverse property quasigroups and loops[CIPQ and (CIPL)], it is established that the holomorph of a loop is a Smarandache; AIPL, CIPL, K ...
Gbolahan, Temitoe   +1 more
core   +1 more source

Trace inequalities for positive semidefinite matrices

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2017
Certain trace inequalities for positive definite matrices are generalized for positive semidefinite matrices using the notion of the group generalized inverse.
Choudhury Projesh Nath, Sivakumar K.C.
doaj   +1 more source

Unification of sparse Bayesian learning algorithms for electromagnetic brain imaging with the majorization minimization framework

open access: yesNeuroImage, 2021
Methods for electro- or magnetoencephalography (EEG/MEG) based brain source imaging (BSI) using sparse Bayesian learning (SBL) have been demonstrated to achieve excellent performance in situations with low numbers of distinct active sources, such as ...
Ali Hashemi   +5 more
doaj   +1 more source

On the continuity of the group inverse in $C^*$-algebras [PDF]

open access: yesBanach Journal of Mathematical Analysis, 2014
[EN] Let {a_n} be a sequence of group invertible elements of a unital C* algebra A that converges to a. We present some equivalent conditions for the group invertibility of a and for the convergence of {a^#_n} to a#.
Benítez López, Julio   +2 more
openaire   +4 more sources

Inversion is Possible in Groups with no Periodic Automorphisms [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 2015
AbstractThere exist infinite finitely presented torsion-free groups G such that Aut(G) and Out(G) are torsion free but G has an automorphism sending some non-trivial element to its inverse.
Bridson, Martin R., Short, Hamish
openaire   +3 more sources

Advancing Structural Health Monitoring with Deep Belief Network-Based Classification

open access: yesMathematics
Structural health monitoring (SHM) plays a critical role in ensuring the safety and longevity of civil infrastructure by enabling the early detection of structural changes and supporting preventive maintenance strategies.
Álvaro Presno Vélez   +2 more
doaj   +1 more source

Perturbation of Dual Group Generalized Inverse and Group Inverse

open access: yesSymmetry
Symmetry plays a crucial role in the study of dual matrices and dual matrix group inverses. This paper is mainly divided into two parts. We present the definition of the spectral norm of a dual real matrix A^, (which is usually represented in the form A^=A+εA0, A and A0 are, respectively, the standard part and the infinitesimal part of A^) and two ...
Tianhe Jiang   +2 more
openaire   +2 more sources

Classification and Prediction of Topological Insulators by Using the Density of States

open access: yesMathematics
In order to characterize topological insulators it is customary to use representations of the electronic structure, such as the band structure, where the energy of electrons is represented as a function of their momenta.
Alejandro Díaz-Nadales   +3 more
doaj   +1 more source

Theoretical and Computational Methods to Resistance Distances in Novel Graphs Operations

open access: yesIEEE Access, 2019
Motivated by the recent research on the computation of resistance distance, this paper aims to compute resistance distance in two classes of graphs, which are generated by three graphs.
Li Zhang, Jia-Bao Liu
doaj   +1 more source

Approximation of Bayesian inverse problems for PDEs [PDF]

open access: yes, 2010
Inverse problems are often ill posed, with solutions that depend sensitively on data. In any numerical approach to the solution of such problems, regularization of some form is needed to counteract the resulting instability.
Dashti, Massoumeh   +7 more
core   +1 more source

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