Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-26T06:09:37.789Z Has data issue: false hasContentIssue false

Weak solutions of a quasi-linear degenerate elliptic system with discontinuous coefficients

Published online by Cambridge University Press:  22 January 2016

Yoshiaki Ikeda*
Affiliation:
Department of Mathematics, Aichi University of Education, Kariya, 448, Japan
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We shall discuss regularities and related topics on weak solutions of the system of the following quasi-linear elliptic differential equations (a combination of almost single equations)

in a bounded domain Ω in Rn (n ≧ 2), where A1j … (A1j …, Anj) are given vector functions of (x, u, ▽uj), Bj are scalar functions of the same variables, and ▽uj = (∂uj/∂x1, …, ∂uj/∂xj denote the gradients of the uj = uj(x) (j = 1, …, m).

Type
Research Article
Copyright
Copyright © Editorial Board of Nagoya Mathematical Journal 1984

References

[ 1 ] Mandras, F., Il problema di Dirichlet per una classe di sistemi lineari non-uniformente ellittici, Rend. Sem. Fac. Sci. Univ. Cagliari, 45 (1975), 333345.Google Scholar
[ 2 ] Mandras, F., Principio di massimo debole per sotto-soluzioni di sistemi lineari ellittici debolmente accoppiati, Boll. Un. Mat. Ital. (5) 13-A (1976), 592600.Google Scholar
[ 3 ] Mandras, F., Disegualianza di Harnack per sistemi ellittici debolmente accoppiati, Boll. Un. Mat. Ital. (5) 14-A (1977), 313321.Google Scholar
[ 4 ] Moser, J., On Harnack’s theorem for elliptic differential equations, Comm. Pure. Appl. Math., 14 (1961), 577591.Google Scholar
[ 5 ] Murthy, M. K. V. and Stampacchia, G., Boundary value problems for some degenerate-elliptic operators, Ann. Pura. Appl., 80 (1968), 1122.Google Scholar
[ 6 ] Nirenberg, L., On elliptic differential equationsa, Ann. Scula Norm. Sup. Pisa, 13 (1959), 116162.Google Scholar
[ 7 ] Serrin, J., Local behavior of solutions of quasi-linear equations, Acta Math., 111 (1964), 247302.CrossRefGoogle Scholar
[ 8 ] Stampacchia, G., Équations elliptiques du second ordre à coefficients discontinus, Séminaire sur les équations aux dérivées partielles, Collège de France (mai 1964).Google Scholar
[ 9 ] Stampacchia, G., Le problème de Dirichlet pour les équations discontinus, Ann. Inst. Fourier, 15 (1965) 189258.Google Scholar
[10] Trudinger, N. S., On Harnack type inequalities and their application to quasi-linear elliptic equations, Comm. Pure. Appl. Math., 20 (1967), 721747. MR 37#1788.Google Scholar
[11] Trudinger, N. S., Linear elliptic operator with measurable coefficients, Ann. Scuola Norm. Sup. Pisa, 27 (1973) 265308.Google Scholar