In this note we prove an explicit formula for the lower semicontinuous envelope of some functionals defined on real polyhedral chains. More precisely, denoting by H : R -> [0,infinity) an even, subadditive, and lower semicontinuous function with H(0) = 0, and by Phi(H) the functional induced by H on polyhedral m-chains, namely Phi(H) (P) := Sigma(N)(i=1) H(theta(i))H-m(sigma(i)), for every P = Sigma(N)(i=1)theta(i) [[sigma(i)]] is an element of P-m(R-n), we prove that the lower semicontinuous envelope of Phi(H) coincides on rectifiable m-currents with the H-mass M-H (R) := integral(E) H(theta(x)) dH(m)(x) for every R = [[E, tau, theta]] is an element of R-m(R-n).
On the lower semicontinuous envelope of functionals defined on polyhedral chains / M. Colombo, A. De Rosa, A. Marchese, S. Stuvard. - In: NONLINEAR ANALYSIS. - ISSN 0362-546X. - 163(2017), pp. 201-215.
On the lower semicontinuous envelope of functionals defined on polyhedral chains
S. Stuvard
2017
Abstract
In this note we prove an explicit formula for the lower semicontinuous envelope of some functionals defined on real polyhedral chains. More precisely, denoting by H : R -> [0,infinity) an even, subadditive, and lower semicontinuous function with H(0) = 0, and by Phi(H) the functional induced by H on polyhedral m-chains, namely Phi(H) (P) := Sigma(N)(i=1) H(theta(i))H-m(sigma(i)), for every P = Sigma(N)(i=1)theta(i) [[sigma(i)]] is an element of P-m(R-n), we prove that the lower semicontinuous envelope of Phi(H) coincides on rectifiable m-currents with the H-mass M-H (R) := integral(E) H(theta(x)) dH(m)(x) for every R = [[E, tau, theta]] is an element of R-m(R-n).File | Dimensione | Formato | |
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