Results 101 to 110 of about 2,471,206 (379)

Boundary value problems for metrics on 3-manifolds [PDF]

open access: yesarXiv, 2011
We discuss the problem of prescribing the mean curvature and conformal class as boundary data for Einstein metrics on 3-manifolds, in the context of natural elliptic boundary value problems for Riemannian metrics.
arxiv  

Existence results for a mixed boundary value problem

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
In the present paper, we obtain an existence result for a class of mixed boundary value problems for second-order differential equations. A critical point theorem is used, in order to prove the existence of a precise open interval of positive eigenvalues
Armin Hadjian, Stepan Tersian
doaj   +1 more source

Solvability of a Fourth-Order Boundary Value Problem with Integral Boundary Conditions

open access: yesJournal of Applied Mathematics, 2013
We investigate the existence of solutions and positive solutions for a nonlinear fourth-order differential equation with integral boundary conditions of the form x(4)(t)=f(t,x(t),x′(t),x′′(t),x′′′(t)), t∈[0,1], x(0)=x′(1)=0, x′′(0)=∫01h(s,x(s),x′(s),x ...
Hui Li, Libo Wang, Minghe Pei
doaj   +1 more source

Nonlocal Boundary Value Problem for Impulsive Differential Equations of Fractional Order

open access: yes, 2011
We study a nonlocal boundary value problem of impulsive fractional differential equations. By means of a fixed point theorem due to O'Regan, we establish sufficient conditions for the existence of at least one solution of the problem.
Liu Yang, Haibo Chen
semanticscholar   +1 more source

Data‐driven forecasting of ship motions in waves using machine learning and dynamic mode decomposition

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
Summary Data‐driven forecasting of ship motions in waves is investigated through feedforward and recurrent neural networks as well as dynamic mode decomposition. The goal is to predict future ship motion variables based on past data collected on the field, using equation‐free approaches.
Matteo Diez   +2 more
wiley   +1 more source

A Boundary Value Problem for Hermitian Monogenic Functions

open access: yesBoundary Value Problems, 2008
We study the problem of finding a Hermitian monogenic function with a given jump on a given hypersurface in ℝm, m=2n. Necessary and sufficient conditions for the solvability of this problem are obtained.
Ricardo Abreu Blaya   +3 more
doaj   +1 more source

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