SIAM Journal on Numerical Analysis, Vol. 22, No. 6 (Dec., 1985), pp. 1107-1115 (9 pages) We present an almost uniform triangulation of the two-sphere, derived from the icosahedron, and describe a ...

A number of finite element discretization techniques based on two (or more) subspaces for nonlinear elliptic partial differential equations (PDEs) is presented. Convergence estimates are derived to ...

The discretization method may possibly be transferred to other classes of equations--e. g. fully nonlinear equations. These are more likely to be used in subject areas where problems are not ...