Results 11 to 20 of about 550,186 (331)

Stabilisation for discrete‐time mean‐field stochastic Markov jump systems with multiple delays

open access: yesIET Control Theory & Applications, 2023
In this paper, the operator spectrum theory is applied to study the general stabilisation issues for mean‐field stochastic Markov jump systems (MF‐SMJSs), where multiple delays, multiplicative noises and homogeneous Markov chain exist simultaneously. The
Jianying Di   +3 more
doaj   +1 more source

Metallic Structures for Tangent Bundles over Almost Quadratic ϕ-Manifolds

open access: yesMathematics, 2023
This paper aims to explore the metallic structure J2=pJ+qI, where p and q are natural numbers, using complete and horizontal lifts on the tangent bundle TM over almost quadratic ϕ-structures (briefly, (ϕ,ξ,η)).
Mohammad Nazrul Islam Khan   +3 more
doaj   +1 more source

Pseudospectra in non-Hermitian quantum mechanics [PDF]

open access: yes, 2015
We propose giving the mathematical concept of the pseudospectrum a central role in quantum mechanics with non-Hermitian operators. We relate pseudospectral properties to quasi-Hermiticity, similarity to self-adjoint operators, and basis properties of ...
Adams R. A.   +14 more
core   +2 more sources

Several rough set models in quotient space

open access: yesCAAI Transactions on Intelligence Technology, 2022
In order to deal with coarse‐grained and multi‐grained calculation problems, as well as granularity transformation problems in information system, quotient space theory is introduced in rough set theory.
Huanmin Zhao, Liwen Ma
doaj   +1 more source

Tangent Bundles Endowed with Quarter-Symmetric Non-Metric Connection (QSNMC) in a Lorentzian Para-Sasakian Manifold

open access: yesMathematics, 2023
The purpose of the present paper is to study the complete lifts of a QSNMC from an LP-Sasakian manifold to its tangent bundle. The lifts of the curvature tensor, Ricci tensor, projective Ricci tensor, and lifts of Einstein manifold endowed with QSNMC in ...
Rajesh Kumar   +3 more
doaj   +1 more source

Recursive algorithms for the elimination of redundant paths in spatial lag operators [PDF]

open access: yes, 1992
Recursive algorithms for the elimination of redundant paths in spatial lag operators are introduced. It is shown that these algorithms have superior computational properties in comparison with the cumbersome procedure proposed by Ross and Harary (1952 ...
Blommestein, Hans J., Koper, Nick A.M.
core   +2 more sources

K-statistical operators for set mathematical morphology

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2013
A generalization of the basic operators in mathematical morphology is presented in this paper. The resulting generalization lead to the construction of the k-statistical operators, due to its ability to obtain geometricaly the statistical descriptors ...
Juan Santiago Díaz de León   +3 more
doaj   +1 more source

Study of a Transmission Problem with Friction Law and Increasing Continuous Terms in a Thin Layer

open access: yesMathematics, 2023
The aim of this paper is to establish the asymptotic analysis of nonlinear boundary value problems. The non-stationary motion is given by the elastic constructive law. The contact is described with a version of Tresca’s law of friction.
Yasmina Kadri   +4 more
doaj   +1 more source

VAGO method for the solution of elliptic second-order boundary value problems [PDF]

open access: yes, 2010
Mathematical physics problems are often formulated using differential oprators of vector analysis - invariant operators of first order, namely, divergence, gradient and rotor operators.
Vabishchevich, Nikolay P.   +1 more
core   +4 more sources

Operational operations research at the Mathematical Centre [PDF]

open access: yesEuropean Journal of Operational Research, 1984
This reprint is dedicated to Cor Baayen on the occasion of his retirement as scientific director of CWI. It was written in 1982, when CWI and NWO were still Institute MC and ZWO. Just before, the Foundation MC had confirmed its national position by becoming the ‘Netherlands Foundation for Mathematics’.
Anthonisse, J.M., Lenstra, J.K.
openaire   +2 more sources

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