- Tytuł:
- Nonconvex minimization related to quadratic double-well energy - approximation by convex problemsenergy – approximation by convex problems
- Autorzy:
-
Naniewicz, Z.
Puchała, P. - Powiązania:
- https://bibliotekanauki.pl/articles/205686.pdf
- Data publikacji:
- 2012
- Wydawca:
- Polska Akademia Nauk. Instytut Badań Systemowych PAN
- Tematy:
-
nonconvex integrand
minimum of convex functions
duality
parameterized Young measures - Opis:
- A double-well energy expressed as a minimum of two quadratic functions, called phase energies, is studied taking into account minimization of the corresponding integral functional. Such integral, as being not sequentially weakly lower semicontinuous, does not admit classical minimizers. To derive the relaxation formula for the infimum, the appropriate minimizing sequence is constructed. It consists of solutions of some approximating convex problems involving characteristic functions related to the phase energies. The weak limit of this sequence and the weak limit of the sequence of solutions of dual problems combined with the weak-star limits of the characteristic functions related to the phase energies allow to establish the final relaxation formula. It is also shown that infimum can be expressed by the Young measure associated with constructed minimizing sequence. An explicit form of Young measure in some regions of the involved domain is calculated.
- Źródło:
-
Control and Cybernetics; 2012, 41, 3; 525-543
0324-8569 - Pojawia się w:
- Control and Cybernetics
- Dostawca treści:
- Biblioteka Nauki
Artykuł