The best Sobolev trace constant in a domain with oscillating boundary |
| |
Authors: | Juliá n Ferná ndez Bonder,Rafael Orive,Julio D. Rossi |
| |
Affiliation: | 1. Departamento de Matemática, FCEyN, Universidad de Buenos Aires, Pabellon I, Ciudad Universitaria (1428), Buenos Aires, Argentina;2. Departamento de Matemáticas, Facultad de Ciencias, Universidad Autonoma de Madrid, Crta. Colmenar Viejo km. 15, 28049 Madrid, Spain;3. Instituto de Matemáticas y Física Fundamental, Consejo Superior de Investigaciones Científicas, Serrano 123, Madrid, Spain |
| |
Abstract: | In this paper we study homogenization problems for the best constant for the Sobolev trace embedding W1,p(Ω)?Lq(∂Ω) in a bounded smooth domain when the boundary is perturbed by adding an oscillation. We find that there exists a critical size of the amplitude of the oscillations for which the limit problem has a weight on the boundary. For sizes larger than critical the best trace constant goes to zero and for sizes smaller than critical it converges to the best constant in the domain without perturbations. |
| |
Keywords: | 35B27 35P30 46E35 |
本文献已被 ScienceDirect 等数据库收录! |
|