We prove the absence of the Lavrentiev gap for non-autonomous functionals F(u) := integral(Omega) f(x, Du(x)) dx,where the density f(x, z) is alpha-Holder continuous with respect to x; x is an element of Omega subset of R^n; f satisfies the (p, q)-growth conditions |z|^p <= f(x, z) <= L (1 + |z|^q),where 1 < p < q < p(n+alpha)/n, and it can be approximated from below by suitable densities f_k.
No Lavrentiev gap for some double phase integrals
De Filippis, F;Leonetti, F
2022-01-01
Abstract
We prove the absence of the Lavrentiev gap for non-autonomous functionals F(u) := integral(Omega) f(x, Du(x)) dx,where the density f(x, z) is alpha-Holder continuous with respect to x; x is an element of Omega subset of R^n; f satisfies the (p, q)-growth conditions |z|^p <= f(x, z) <= L (1 + |z|^q),where 1 < p < q < p(n+alpha)/n, and it can be approximated from below by suitable densities f_k.File in questo prodotto:
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