Research output: Contribution to journal › Article › peer-review
Variational problem with an obstacle in RN for a class of quadratic functionals. / Arkhipova, A. A.
In: Journal of Mathematical Sciences , Vol. 159, No. 4, 01.06.2009, p. 391-410.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Variational problem with an obstacle in RN for a class of quadratic functionals
AU - Arkhipova, A. A.
PY - 2009/6/1
Y1 - 2009/6/1
N2 - A variational problem with an obstacle for a certain class of quadratic functionals is considered. Admissible vector-valued functions are assumed to satisfy the Dirichlet boundary condition, and the obstacle is a given smooth (N∈-∈1)-dimensional surface S in R N . The surface S is not necessarily bounded. It is proved that any minimizer u of such an obstacle problem is a partially smooth function up to the boundary of a prescribed domain. It is shown that the (n∈-∈2)-Hausdorff measure of the set of singular points is zero. Moreover, u is a weak solution of a quasilinear system with two kinds of quadratic nonlinearities in the gradient. This is proved by a local penalty method. Bibliography: 25 titles.
AB - A variational problem with an obstacle for a certain class of quadratic functionals is considered. Admissible vector-valued functions are assumed to satisfy the Dirichlet boundary condition, and the obstacle is a given smooth (N∈-∈1)-dimensional surface S in R N . The surface S is not necessarily bounded. It is proved that any minimizer u of such an obstacle problem is a partially smooth function up to the boundary of a prescribed domain. It is shown that the (n∈-∈2)-Hausdorff measure of the set of singular points is zero. Moreover, u is a weak solution of a quasilinear system with two kinds of quadratic nonlinearities in the gradient. This is proved by a local penalty method. Bibliography: 25 titles.
UR - http://www.scopus.com/inward/record.url?scp=67349240813&partnerID=8YFLogxK
U2 - 10.1007/s10958-009-9452-9
DO - 10.1007/s10958-009-9452-9
M3 - Article
AN - SCOPUS:67349240813
VL - 159
SP - 391
EP - 410
JO - Journal of Mathematical Sciences
JF - Journal of Mathematical Sciences
SN - 1072-3374
IS - 4
ER -
ID: 51917804