Topological degree methods in nonlinear boundary value problems/
J. Mawhin.
- Providence, R.I.: American Mathematical Society, 1979.
- 122 p.
- CBMS-NSF Regional conference series in mathematics .
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Bibliography: p. 109-122.
082181690X
78031906 //r973
Nonlinear boundary value problems Functional differential equations. Topological degree.