Abstract
The index theorem of M. Morse, which counts focal points weighted by multiplicity in positive regular problems, and the extension by the author, which counts focal points weighted by a signature in problems not required to be positive regular, are further extended to the counting of compatible sets of general self-adjoint boundary conditions. Circumstances under which the weight is the multiplicity are exhibited.
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References
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© 1980 Springer-Verlag
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Pitcher, E. (1980). Counting compatible boundary conditions. In: Nitecki, Z., Robinson, C. (eds) Global Theory of Dynamical Systems. Lecture Notes in Mathematics, vol 819. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0087001
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DOI: https://doi.org/10.1007/BFb0087001
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