Hostname: page-component-76fb5796d-qxdb6 Total loading time: 0 Render date: 2024-04-25T15:16:29.913Z Has data issue: false hasContentIssue false

Quasimonotone versus pseudomonotone

Published online by Cambridge University Press:  14 November 2011

Rüdiger Landes
Affiliation:
Department of Mathematics, University of Oklahoma, Norman, OK 73019, U.S.A.

Abstract

Under some natural hypotheses, we show that if the (Nemitsky-) operator associated with an elliptic system is pseudomonotone, then the system has to be quasimonotone. Conversely, if the system satisfies a strict quasimonotonicity condition, then an existence proof of K.-W. Zhang contains the arguments to verify the pseudomonotonicity of the operator. We present a simplified proof of this fact under more general assumptions.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1Acerbi, E. and Fusco, N.. Semicontinuity problems in the calculus of variations. Arch. Rational Mech. Anal. 86(1984), 125–45.CrossRefGoogle Scholar
2Ball, J. M.. Convexity conditions and existence theorems in nonlinear elasticity. Arch. Rational Mech. Anal. 63 (1971), 337403.CrossRefGoogle Scholar
3Boccardo, L. and Dacorogna, B.. A characterization of pseudomonotone differential operators in divergence form. Comm. Partial Differential Equations 9 (1984), 1107–17.CrossRefGoogle Scholar
4Browder, F. E.. Degree theory for nonlinear mappings. Proc. Sympos. Pure Math. 451 (1986), 103220.Google Scholar
5Chabrowski, J. and Zhang, K.-W.. Quasimonotonicity and perturbated systems with critical growth. Indiana Univ. Math. J. (to appear).Google Scholar
6Dacorogna, B.. Direct Methods in the Calculus of Variations (New York: Springer, 1989).CrossRefGoogle Scholar
7Ekland, I. and Temam, P.. Convex Analysis and Variational Problems (Amsterdam: North Holland, 1976).Google Scholar
8Fuchs, M.. Regularity theorems for nonlinear systems of partial differential equations under natural ellipticity conditions. Analysis 7 (1987), 8393.CrossRefGoogle Scholar
9Hamburger, Ch.. Alpha-harmonic differential forms (Preprint No. 113, SFB 256, Bonn, 1990).Google Scholar
10Kittilä, A.. On the topological degree for a class of mappings of monotone type and applications to strongly nonlinear elliptic problems. Ann. Acad. Sci. Fenn. Ser. A I 91 (1994), 148.Google Scholar
11Lions, J. L.. Quelques méthods de résolution des problèmes aux limites non linéaires (Paris: Gauthier-Villars, 1969).Google Scholar
12Morrey, C. B., Quasiconvexity and the lower semicontinuity of multiple integrals. Pacific J. Math. 2 (1952), 2553.CrossRefGoogle Scholar
13Morrey, C. B.. Multiple integrals in the calculus of variations (Berlin: Springer, 1966).CrossRefGoogle Scholar
14Stein, E. M.. Singular integrals and differentiability properties of functions (Princeton: Princeton University Press, 1970).Google Scholar
15Zeidler, E.. Nonlinear functional analysis and its applications, IIA (New York: Springer, 1990).Google Scholar
16Zhang, K.-W.. On the Dirichlet Problem for a class of quasilinear elliptic systems of PDEs in divergence form. In Partial Differential Equations, Proc. Tranjin, ed. Chern, S. S., Lecture Notes in Mathematics 1036, pp. 262–77 (Berlin: Springer, 1988).Google Scholar
17Zhang, K.-W.. Remarks on perturbed systems with critical growth. Nonlinear Anal. 18 (1992), 1167–79.CrossRefGoogle Scholar