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math.AP2009
Nonrigidity of a class of two dimensional surfaces with positive curvature and planar points
Abdelhamid Meziani
Nontrivial infinitesimal bendings for a class of two-dimensional surfaces are constructed. The surfaces considered here are orientable; compact; with boundary; have positive curvat…
math.AP2009
On First and Second Order Planar Elliptic Equations with Degeneracies
Abdelhamid Meziani
This paper deals with elliptic equations in the plane with degeneracies. The equations are generated by a complex vector field that is elliptic everywhere except along a simple clo…