Hilbert space and variational methods for singular selfadjoint systems of differential equations

DOI10.1090/S0002-9904-1974-13582-2zbMath0289.34039MaRDI QIDQ4777695

Junior Stein

Publication date: 1974

Published in: Bulletin of the American Mathematical Society (Search for Journal in Brave)

Mathematics Subject Classification ID

Topological structure of integral curves, singular points, limit cycles of ordinary differential equations (34C05) Sobolev spaces and other spaces of ``smooth functions, embedding theorems, trace theorems (46E35) Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations (34C10)

Cites Work

• Quadratic control problems
• Applications of the theory of quadratic forms in Hilbert space to the calculus of variations
• Singular Quadratic Functionals

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