Results 11 to 20 of about 41 (40)

On the existence of positive solutions of a class of parabolic reaction diffusion systems [PDF]

, 2022
In this paper, we show the existence of continuous positive solutions of a class of nonlinear parabolic reaction diffusion systems with initial conditions using techniques of functional analysis and potential analysis. Mathematics Subject Classification (
REDJOUH, Mounir, MESBAHI, Salim
core   +1 more source

Theoretical and numerical considerations on Bratu-type problems [PDF]

, 2022
In this paper we present an heuristic introduction to Bratu problem and we give some variants of Bratu\u27s theorem (G. Bratu, Sur les equations integrales non lineaires, Bulletin Soc. Math. France, 42(1914), 113-142).
PETRUȘEL, Adrian, ȘERBAN, Marcel Adrian, RUS, Ioan A.   +2 more
core   +1 more source

Generalized Green′s functions for higher order boundary value matrix differential systems

International Journal of Mathematics and Mathematical Sciences, Volume 15, Issue 3, Page 523-535, 1992., 1992
In this paper, a Green′s matrix function for higher order two point boundary value differential matrix problems is constructed. By using the concept of rectangular co‐solution of certain algebraic matrix equation associated to the problem, an existence condition as well as an explicit closed form expression for the solution of possibly not well‐posed ...
R. J. Villanueva, L. Jodar
wiley   +1 more source

Generalized two point boundary value problems. existence and uniqueness

International Journal of Stochastic Analysis, Volume 5, Issue 2, Page 147-156, 1992., 1991
An algorithm is presented for finding the pseudo‐inverse of a rectangular matrix. Using this algorithm as a tool, existence and uniqueness of solutions to two point boundary value problems associated with general first order matrix differential equations are established.
K. N. Murty, S. Sivasundaram
wiley   +1 more source

Existence and global asymptotic behavior of positive solutions for combined second-order differential equations on the half-line

Advances in Nonlinear Analysis, 2016
We are concerned with the existence, uniqueness and global asymptotic behavior of positive continuous solutions to the second-order boundary value ...
Bachar Imed, Mâagli Habib
doaj   +1 more source

Positive bounded solutions for nonlinear polyharmonic problems in the unit ball

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
In this paper, we study the existence of positive solutions for the following nonlinear polyharmonic equation (-∆)mu+λf(x, u) = 0 in B; subject to some boundary conditions, where m is a positive integer, λ is a nonnegative constant and B is the unit ball
Mâagli Habib, Zine El Abidine Zagharide
doaj   +1 more source

Solvability of infinite systems of second-order differential equations with boundary conditions in ℓp

, 2021
In this paper, governed by the fundamental solutions we introduce the Green's function of the second-order differential equations in general form with respect to boundary conditions and deal with the solvability of the innite system of second-order ...
Mursaleen, M., Pourhadi, E., Saadati, R.
core  

A uniqueness method to a new Hadamard fractional differential system with four-point boundary conditions. [PDF]

J Inequal Appl, 2018
Zhai C, Wang W, Li H.
europepmc   +1 more source

Linear ordinary differential equations: revisiting the impulsive response method using factorization [PDF]

, 2010
Camporesi, Roberto
core  

Safety of Stimulants Across Patient Populations: A Meta-Analysis.

JAMA Netw Open
Oliva HNP, Prudente TP, Mayerson TF, Mignosa MM, Oliva IO, Potenza MN, Jegede OO, Angarita GA.   +7 more
europepmc   +1 more source