2013
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Acta Universitaria
Panayotis Vyridís, « Bifurcation in calculus of variations with constraints », Centro Journal, ID : 10670/1.n1xmwg
"We describe a variational problem on a domain of a plane under a constraint of geometrical character. We provide sufficient and necessary conditions for the existence of bifurcation points. The problem in 2 coordinate form, corresponds to a quasilinear elliptic boundary value problem. The problem provides a physical model for several applications referring to continuum media and membranes."