Title
Generalized Topological Degree and Semilinear Equations (Cambridge Tracts in Mathematics, Series Number 117),Used
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This book describes many new results and extensions of the theory of generalized topological degree for densely defined Aproper operators and presents important applications, particularly to boundary value problems of nonlinear ordinary and partial differential equations that are intractable under any other existing theory. Aproper mappings arise naturally in the solution to an equation in infinite dimensional space via the finite dimensional approximation. The theory subsumes classical theory involving compact vector fields as well as the more recent theories of condensing vectorfields, strongly monotone, and strongly accretive maps. Researchers and graduate students in mathematics, applied mathematics, and physics who make use of nonlinear analysis will find this an important resource for new techniques.
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