Results 61 to 70 of about 531,135 (290)

Solving Fuzzy Volterra Integrodifferential Equations of Fractional Order by Bernoulli Wavelet Method

Advances in Fuzzy Systems, 2018
A matrix method called the Bernoulli wavelet method is presented for numerically solving the fuzzy fractional integrodifferential equations. Using the collocation points, this method transforms the fuzzy fractional integrodifferential equation to a ...
R. Mastani Shabestari, R. Ezzati, T. Allahviranloo   +2 more
doaj   +1 more source

Exact conserved quantities on the cylinder I: conformal case

, 2003
The nonlinear integral equations describing the spectra of the left and right (continuous) quantum KdV equations on the cylinder are derived from integrable lattice field theories, which turn out to allow the Bethe Ansatz equations of a twisted ``spin -1/
, A. Klümper, A. Klümper, A. Klümper, A. Klümper, A. Kundu, A.B. Zamolodchikov, A.Y. Volkov, B. Feigin, B. Feigin, B.L. Feigin, C. Bender, C. Destri, C. Destri, C. Destri, D. Fioravanti, D. Fioravanti, D. Fioravanti, D. Fioravanti, D. Fioravanti, D. Fioravanti, D. Fioravanti, Davide Fioravanti, F. Ravanini, H.W.J. Blöte, I.S. Gradshteyn, L. Hlavaty, L. Hlavaty, L.D. Faddeev, L.D. Faddeev, M.P. Morse, Marco Rossi, N.M. Bogoliubov, P. Dorey, P. Dorey, R. Kedem, R. Sasaki, R.J. Baxter, V.A. Fateev, V.A. Fateev, V.S. Dotsenko, V.V. Bazhanov, V.V. Bazhanov, V.V. Bazhanov, V.V. Bazhanov   +44 more
core   +2 more sources

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Existence and Stability Results on Hadamard Type Fractional Time-Delay Semilinear Differential Equations

Mathematics, 2020
A delayed perturbation of the Mittag-Leffler type matrix function with logarithm is proposed. This combines the classic Mittag–Leffler type matrix function with a logarithm and delayed Mittag–Leffler type matrix function. With the help of this introduced
Nazim Mahmudov, Areen Al-Khateeb
doaj   +1 more source

On integration of some classes of $(n+1)$ dimensional nonlinear Partial Differential Equations

, 2003
The paper represents the method for construction of the families of particular solutions to some new classes of $(n+1)$ dimensional nonlinear Partial Differential Equations (PDE).
A. I. Zenchuk, A. I. Zenchuk, B. Konopelchenko, F. Guil, L. V. Bogdanov, V. E. Zakharov, V. E. Zakharov, V. E. Zakharov, Y. Ohta   +8 more
core   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Barycentric Rational Collocation Method for Nonlinear Heat Conduction Equation

Journal of Applied Mathematics, 2022
Nonlinear heat equation solved by the barycentric rational collocation method (BRCM) is presented. Direct linearization method and Newton linearization method are presented to transform the nonlinear heat conduction equation into linear equations.
Jin Li
doaj   +1 more source

Oscillation of Nonlinear Matrix Differential Equations of Second Order [PDF]

Proceedings of the American Mathematical Society, 1968
where U= (uij), F= (fij) and R are nXn matrices. By F= F(t, U, U') is meant fij=fj;(t, ul, , unn, u, * , u). The functions fij are assumed to be continuous for t on [a, so ), a > 0, and for all values of the remaining variables. The matrix F(t, U, U') is symmetric and positive definite for every t on [a, co) and every matrix U with det U O, while the ...
openaire   +1 more source

PERTURBATION ANALYSIS OF A NONLINEAR MATRIX EQUATION

Taiwanese Journal of Mathematics, 2006
Consider the nonlinear matrix equation $X + A^* X^{-2}A = I$, where $A$ is an $n \times n$ complex matrix, $I$ the identity matrix and $A^*$ the conjugate transpose of the matrix $A$. In this paper a perturbation bound for a class of special solutions of this matrix equation is derived, and an explicit expression of its condition number is obtained ...
Xu, Shufang, Cheng, Mingsong
openaire   +2 more sources

Comment on “Perturbation Analysis of the Nonlinear Matrix Equation ” [PDF]

Abstract and Applied Analysis, 2013
We show that the perturbation estimate for the matrix equation due to J. Li, is wrong. Our discussion is supported by a counterexample.
Maher Berzig, Erdal Karapınar
openaire   +2 more sources