Results 1 to 10 of about 70,001 (264)

Solvability of an initial-boundary value problem for a nonlinear pseudoparabolic equation with degeneration

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
This article is devoted to the solvability of degenerate nonlinear equations of pseudoparabolic type. Such problems appear naturally in physical and biological models. The article aims to study the solvability in the classes of regular solutions of (all
S.E. Aitzhanov   +2 more
doaj   +1 more source

Analisis Kinerja PDAM Di Sumatera Utara Ditinjau Dari Aspek Keuangan

open access: yesJurnal Bisnis dan Kewirausahaan, 2021
Penelitian ini bertujuan untuk menganalisis pengaruh aspek keuangan yang terdiri dari return on equity, ratio operasi, ratio kas, efektivitas penagihan dan solvabilitas terhadap kinerja. Perusahaan daerah Air Minum yang ada di Sumatera Utara.
Djuli Sjafei Purba   +2 more
doaj   +1 more source

Polynomial and Pseudopolynomial Procedures for Solving Interval Two-Sided (Max, Plus)-Linear Systems

open access: yesMathematics, 2021
Max-plus algebra is the similarity of the classical linear algebra with two binary operations, maximum and addition. The notation Ax = Bx, where A, B are given (interval) matrices, represents (interval) two-sided (max, plus)-linear system.
Helena Myšková, Ján Plavka
doaj   +1 more source

A Conservative and Implicit Second-Order Nonlinear Numerical Scheme for the Rosenau-KdV Equation

open access: yesMathematics, 2021
In this paper, for solving the nonlinear Rosenau-KdV equation, a conservative implicit two-level nonlinear scheme is proposed by a new numerical method named the multiple integral finite volume method.
Cui Guo, Yinglin Wang, Yuesheng Luo
doaj   +1 more source

Solvable chaos [PDF]

open access: yesPhysics Letters A, 2005
We present classes of discrete reversible systems which are at the same time chaotic and solvable.
Grammaticos, B.   +2 more
openaire   +4 more sources

On the solvability of Dirichlet problem for the weighted p-Laplacian [PDF]

open access: yesOpuscula Mathematica, 2012
The paper investigates the existence and uniqueness of weak solutions for a non-linear boundary value problem involving the weighted \(p\)-Laplacian. Our approach is based on variational principles and representation properties of the associated spaces.
Ewa Szlachtowska
doaj   +1 more source

Rothe–Legendre pseudospectral method for a semilinear pseudoparabolic equation with nonclassical boundary condition

open access: yesNonlinear Analysis, 2022
A semilinear pseudoparabolic equation with nonlocal integral boundary conditions is studied in the present paper. Using Rothe method, which is based on backward Euler finitedifference schema, we designed a suitable semidiscretization in time to ...
Abdeldjalil Chattouh   +2 more
doaj   +1 more source

New solvable and quasiexactly solvable periodic potentials [PDF]

open access: yesJournal of Mathematical Physics, 1999
Using the formalism of supersymmetric quantum mechanics, we obtain a large number of new analytically solvable one-dimensional periodic potentials and study their properties. More specifically, the supersymmetric partners of the Lamé potentials ma(a+1)sn2(x,m) are computed for integer values a=1,2,3,… .
Khare, Avinash, Sukhatme, Uday
openaire   +2 more sources

Existence for Nonlinear Fourth-Order Two-Point Boundary Value Problems

open access: yesDynamics, 2023
The present paper is devoted to the solvability of various two-point boundary value problems for the equation y(4)=f(t,y,y′,y″,y‴), where the nonlinearity f may be defined on a bounded set and is needed to be continuous on a suitable subset of its domain.
Ravi Agarwal   +2 more
doaj   +1 more source

New criteria for solvability, nilpotency and other properties of finite groups in terms of the order elements or subgroups [PDF]

open access: yesInternational Journal of Group Theory, 2023
In this survey we shall describe some recent criteria for solvability, nilpotency and other properties of finite groups $G$, based either on the orders of the elements of $G$ or on the orders of the subgroups of $G$.
Marcel Herzog   +2 more
doaj   +1 more source

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