Results 71 to 80 of about 2,853,127 (211)
On the bands of the Schrödinger operator with a matrix potential
Mathematische Nachrichten, 2023 AbstractIn this article, we consider the one‐dimensional Schrödinger operator with a Hermitian periodic matrix potential Q. We investigate the bands and gaps of the spectrum and prove that most of the positive real axis is overlapped by m bands. Moreover, we find a condition on the potential Q for which the number of gaps in the spectrum of is ...
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Bernoulli Wavelets Method for Solution of Fractional Differential Equations in a Large Interval
پژوهشهای ریاضی, 2016 In this paper, Bernoulli wavelets are presented for solving (approximately) fractional differential equations in a large interval. Bernoulli wavelets operational matrix of fractional order integration is derived and utilized to reduce the fractional ...
E Keshavarz, Y Ordokhani
doaj
, 2012 The purpose of this study is to establish a simple numerical method based on the Haar wavelet operational matrix of integration for solving two dimensional elliptic partial differential equations of the form, Ñ2u(x, y) + ku(x, y) = f (x, y) with the ...
Nor Artisham, Che Ghani
core
Matrix-matrix interaction of cartilage oligomeric matrix protein and fibronectin
, 2002 Recent work indicates that cartilage oligomeric matrix protein (COMP) plays an important role in extracellular matrix assembly and matrix-matrix protein interactions.
Leslie, MP +8 more
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Solving Optimal Control Linear Systems by Using New Third kind Chebyshev Wavelets Operational Matrix of Derivative [PDF]
, 2014 In this paper, a new third kind Chebyshev wavelets operational matrix of derivative is presented, then the operational matrix of derivative is applied for solving optimal control problems using, third kind Chebyshev wavelets expansions.
Baghdad Science Journal
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Resonances for matrix Schrödinger operators
Duke Mathematical Journal, 2001 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Journal of Taibah University for Science, 2020 In this article, we introduce a numerical technique for solving a class of multi-term variable-order fractional differential equation. The method depends on establishing a shifted Jacobi operational matrix (SJOM) of fractional variable-order derivatives.
A. A. El-Sayed, D. Baleanu, P. Agarwal
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ASIC Framework Simplified and Operationalised - An Operational Matrix for Optimising the Use of Technologies and Innovations in Medical Education. [PDF]
Adv Med Educ Pract, 2022 Owolabi J.
europepmc +1 more source
Approximate Solutions of Singular Two-Point BVPs Using Legendre Operational Matrix of Differentiation [PDF]
, 2013 Exact and approximate analytical solutions of linear and nonlinear singular two-point boundary value problems (BVPs) are obtained for the first time by the Legendre operational matrix of differentiation. Different from other numerical techniques, shifted
I. Hashim +2 more
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Nodes as composite operators in matrix models [PDF]
Classical and Quantum Gravity, 1995 Riemann surfaces with nodes can be described by introducing simple composite operators in matrix models. In the case of the Kontsevich model, it is sufficient to add the quadratic, but ``non-propagating'', term (tr[X])^2 to the Lagrangian. The corresponding Jenkins-Strebel differentials have pairwise identified simple poles.
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