We present Z. Naniewicz method of optimization a coercive integral functional 𝒥 with integrand being a minimum of quasiconvex functions. This method is applied to the minimization of functional with integrand expressed as a minimum of two quadratic functions. This is done by approximating the original nonconvex problem by appropriate convex ones.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-bc101-0-14, author = {Piotr Pucha\l a}, title = {Minimization of functional with integrand expressed as minimum of quasiconvex functions - general and special cases}, journal = {Banach Center Publications}, volume = {102}, year = {2014}, pages = {169-186}, zbl = {1298.49002}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc101-0-14} }
Piotr Puchała. Minimization of functional with integrand expressed as minimum of quasiconvex functions - general and special cases. Banach Center Publications, Tome 102 (2014) pp. 169-186. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc101-0-14/