Office of Academic Resources
Chulalongkorn University
Chulalongkorn University

Home / Help

AuthorDacorogna, Bernard. author
TitleImplicit Partial Differential Equations [electronic resource] / by Bernard Dacorogna, Paolo Marcellini
ImprintBoston, MA : Birkhรคuser Boston : Imprint: Birkhรคuser, 1999
Connect to
Descript XIII, 273 p. online resource


Nonlinear partial differential equations has become one of the main tools of modยญ ern mathematical analysis; in spite of seemingly contradictory terminology, the subject of nonlinear differential equations finds its origins in the theory of linear differential equations, and a large part of functional analysis derived its inspiration from the study of linear pdes. In recent years, several mathematicians have investigated nonlinear equations, particularly those of the second order, both linear and nonlinear and either in divergence or nondivergence form. Quasilinear and fully nonlinear differential equations are relevant classes of such equations and have been widely examined in the mathematical literature. In this work we present a new family of differential equations called "implicit partial differential equations", described in detail in the introduction (c.f. Chapter 1). It is a class of nonlinear equations that does not include the family of fully nonlinear elliptic pdes. We present a new functional analytic method based on the Baire category theorem for handling the existence of almost everywhere solutions of these implicit equations. The results have been obtained for the most part in recent years and have important applications to the calculus of variations, nonlinยญ ear elasticity, problems of phase transitions and optimal design; some results have not been published elsewhere


1 Introduction -- 1.1 The first order case -- 1.2 Second and higher order cases -- 1.3 Different methods -- 1.4 Applications to the calculus of variations -- 1.5 Some unsolved problems -- I First Order Equations -- 2 First and Second Order PDEโ{128}{153}s -- 3 Second Order Equations -- 4 Comparison with Viscosity Solutions -- II Systems of Partial Differential Equations -- 5 Some Preliminary Results -- 6 Existence Theorems for Systems -- III Applications -- 7 The Singular Values Case -- 8 The Case of Potential Wells -- 9 The Complex Eikonal Equation -- IV Appendix -- 10 Appendix: Piecewise Approximations -- References

Mathematics Functional analysis Partial differential equations Numerical analysis Mathematics Functional Analysis Partial Differential Equations Numerical Analysis


Office of Academic Resources, Chulalongkorn University, Phayathai Rd. Pathumwan Bangkok 10330 Thailand

Contact Us

Tel. 0-2218-2929,
0-2218-2927 (Library Service)
0-2218-2903 (Administrative Division)
Fax. 0-2215-3617, 0-2218-2907

Social Network


facebook   instragram