Results 61 to 70 of about 5,838 (166)

Growing sandpile problem with Dirichlet and Fourier boundary conditions

open access: yesElectronic Journal of Differential Equations, 2017
In this work, we study the Prigozhin model for growing sandpile with mixed boundary conditions and an arbitrary time dependent angle of repose. On one part of the boundary the homogeneous Dirichlet boundary condition is provided, on the other one the ...
Estelle Nassouri   +2 more
doaj  

Mean field games of controls with Dirichlet boundary conditions

open access: yesESAIM: Control, Optimisation and Calculus of Variations
In this paper, we study a mean-field games system with Dirichlet boundary conditions in a closed domain and in a mean-field game of controls setting, that is in which the dynamics of each agent is affected not only by the average position of the rest of the agents but also by their average optimal choice.
Mattia Bongini, Francesco Salvarani
openaire   +3 more sources

Numerical Reconstruction of Time-Dependent Boundary Conditions to 2D Heat Equation on Disjoint Rectangles at Integral Observations

open access: yesMathematics
In this paper, two-dimensional (2D) heat equations on disjoint rectangles are considered. The solutions are connected by interface Robin’s-type internal conditions.
Miglena N. Koleva, Lubin G. Vulkov
doaj   +1 more source

Inequalities among eigenvalues of Sturm–Liouville problems

open access: yesJournal of Inequalities and Applications, 1999
There are well-known inequalities among the eigenvalues of Sturm–Liouville problems with periodic, semi-periodic, Dirichlet and Neumann boundary conditions.
Kong Q, Wu H, Zettl A, Eastham MSP
doaj  

On the existence of patterns in reaction-diffusion problems with Dirichlet boundary conditions

open access: yesElectronic Journal of Qualitative Theory of Differential Equations
Consider a general reaction-diffusion problem, $u_t = \Delta u + f(x, u, u_x)$, on a revolution surface or in an $n$-dimensional ball with Dirichlet boundary conditions.
Maicon Sônego
doaj   +1 more source

On solvability of the initial-boundary value problems for a nonlocal hyperbolic equation with periodic boundary conditions

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
In this paper, the solvability of initial-boundary value problems for a nonlocal analogue of a hyperbolic equation in a cylindrical domain is studied. The elliptic part of the considered equation involves a nonlocal Laplace operator, which is introduced
M.T. Baizhanova, B.Kh. Turmetov
doaj   +1 more source

Existence and non-existence results for a nonlinear heat equation

open access: yesElectronic Journal of Differential Equations, 2007
In this study, we consider the nonlinear heat equation $$displaylines{ u_{t}(x,t) = Delta u(x,t) + u(x,t)^p quad hbox{in } Omega imes (0,T),cr Bu(x,t) = 0 quad hbox{on } partialOmega imes (0,T),cr u(x,0) = u_0(x) quad hbox{in } Omega,}$$ with ...
Canan Celik
doaj  

Discontinuous boundary conditions and the Dirichlet problem [PDF]

open access: yesTransactions of the American Mathematical Society, 1923
openaire   +1 more source

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