All a b c d e f g h i j k l m n o p q r s t u v w x y z Other

Previous Page 83 Next

Displaying 1641 – 1660 of 17514

Showing per page

An inverse problem for the equation ▵ u = - c u - d

Michael Vogelius (1994)

Annales de l'institut Fourier

Let Ω be a bounded, convex planar domain whose boundary has a not too degenerate curvature. In this paper we provide partial answers to an identification question associated with the boundary value problem ▵ u = - c u - d in Ω , u = 0 on ∂ Ω . We prove two results: 1) If Ω is not a ball and if one considers only solutions with - c u - d ≤ 0 , then there exist at most finitely many pairs of coefficients ( c , d ) so that the normal derivative ∂ u ∂ ν | ∂ Ω equals a given ψ ≠ 0 .2) If one imposes no sign condition on the solutions but one additionally supposes that Ω is sufficiently...

An iterative method of alternating type for systems with special block matrices

Milan Práger (1991)

Applications of Mathematics

An iterative procedure for systems with matrices originalting from the domain decomposition technique is proposed. The procedure introduces one iteration parameter. The convergence and optimization of the method with respect to the parameter is investigated. The method is intended not as a preconditioner for the CG method but for the independent use.

Currently displaying 1641 – 1660 of 17514