1-4 of 4 Books

Optimization in solving elliptic problems
By E. G. Dʹi͡akonov,Eugene G. D'yakonov,Steve McCormick

Asymptotic theory of elliptic boundary value problems in singularly perturbed domains
By V. G. Mazʹi︠a︡,Vladimir Maz'ya,Serguei Nazarov,Boris Plamenevskij

Elliptic partial differential equations of second order
By David Gilbarg,Neil S. Trudinger

Boundary value problems in the spaces of distributions
By Yakov Roitberg