Top-level heading

Local minimization, variational evolution and Gamma-convergence

Categoria
Seminari di Analisi Matematica
Data e ora inizio evento
Data e ora fine evento
Aula
Sala di Consiglio
Sede

Dipartimento di Matematica Guido Castelnuovo, Sapienza Università di Roma

Speaker

Andrea Braides (Università di Roma Tor Vergata)

The limit behaviour of variational systems depending on small parameters (e.g. homogenization, phase transitions, etc.) is often successfully described in terms of Gamma-convergence both in the static and quasi-static case as long as a global minimization problem can be formulated. In general, Gamma-convergence is less useful if a local minimization (in the static picture) or gradient flow (in the dynamic case) standpoint is taken. I will recall the (few) known results, and explore some directions of research that take the Gamma-limit as a starting point to obtain "corrected" theories suitable for the description of local minimization or evolutionary problems.