Results 241 to 250 of about 7,086 (290)
Some of the next articles are maybe not open access.

On Systems of Integro-Differential and Integral Equations with Identically Singular Matrix Multiplying the Principal Part

Differential Equations, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bulatov, M. V., Solovarova, L. S.
openaire   +1 more source

Bessel equation as an operator identity's matrix element in quantum mechanics

Physics Letters A, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fan, Hong-Yi, Li, Chao
openaire   +1 more source

On the Centro-symmetric Solution of a System of Matrix Equations over a Regular Ring with Identity

Algebra Colloquium, 2007
In this paper, we find the centro-symmetric solution of a system of matrix equations over an arbitrary regular ring [Formula: see text] with identity. We first derive some necessary and sufficient conditions for the existence and an explicit expression of the general solution of the system of matrix equations A1X1 = C1, A2X1 = C2, A3X2 = C3, A4X2 = C4
Wang, Qingwen   +2 more
openaire   +1 more source

The number of solutions to the alternate matrix equation over a finite field and a q-identity

Journal of Statistical Planning and Inference, 2001
Let \(F_q\) be a finite field with \(q\) elements, where \(q\) is a power of a prime. In this paper, the authors first correct a counting error for the formula \(N(K_{2\nu}, O^{(m)})\) occurring in a paper by \textit{L. Carlitz} [Arch. Math. 5, 19-31 (1954; Zbl 0056.01702)].
Wei, Hongzeng, Zhang, Yibin
openaire   +2 more sources

Quantum Algorithm for Linear Non-unitary Dynamics with Near-Optimal Dependence on All Parameters

Communications in Mathematical Physics, 2023
We introduce a family of identities that express general linear non-unitary evolution operators as a linear combination of unitary evolution operators, each solving a Hamiltonian simulation problem. This formulation can exponentially enhance the accuracy
Dong An, Andrew M. Childs, Lin Lin
semanticscholar   +1 more source

Classical Integrable Spin Chains of Landau–Lifshitz Type from R-Matrix Identities

JETP Letters : Journal of Experimental And Theoretical Physics Letters
We describe a family of 1+1 classical integrable space-discrete models of the Landau–Lifshitz type through the usage of ansatz for U–V (Lax) pair with spectral parameter satisfying the semi-discrete Zakharov–Shabat equation.
D. Domanevsky, A. Zotov
semanticscholar   +1 more source

Matrix method for balancing chemical equations of few ‎significant inorganic reactions

International Journal of Basic and Applied Sciences
Balancing chemical equations provides a unified framework on understanding and quantifying chemical reactions, making it a fundamental ‎tool in chemistry.
Gitalee Sharma   +2 more
semanticscholar   +1 more source

Some notes on properties of the matrix Mittag-Leffler function

Applied Mathematics and Computation, 2018
We have come across with publications where some properties of the matrix exponential were incorrectly extended to the matrix Mittag-Leffler function, and then used as a key tool to solve certain linear matrix fractional differential equations.
A. Sadeghi, J. R. Cardoso
semanticscholar   +1 more source

Loop Equations from Differential Systems on Curves

open access: yes, 2018
International audienceTo any flat section equation of the form ∇ 0Ψ = Φ Ψ in a principal bundle over a Riemann surface (∇ 0 is a reference connection), we associate an infinite sequence of “correlators”, symmetric n-differentials on Σ that we denote { W-
R. Belliard, B. Eynard, O. Marchal
semanticscholar   +2 more sources

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