Includes bibliographical references (pages 287-315) and index.
Preliminaries; Functionals Bounded Below; Even Functionals; Linking and Homoclinic Type Solutions; Double Linking Theorems; Superlinear Problems; Systems with Hamiltonian Potentials; Linking and Elliptic Systems; Sign-Changing Solutions; Cohomology Groups.
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Presents some of the research in the area of critical point theory. This book describes the methods and presents various applications. The topics covered include extrema, even valued functionals, weak and double linking, sign changing solutions, Morse inequalities, and cohomology groups.