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math.DG2005
A generalized Morse index theorem
Chaofeng Zhu
In this paper, we prove a Morse index theorem for the index form of even order linear Hamiltonian systems on the closed interval with reasonable self-adjoint boundary conditions. T…
math.DG2004★ 11 cited
Weak Symplectic Functional Analysis and General Spectral Flow Formula
Bernhelm Booss-Bavnbek, Chaofeng Zhu
We consider a continuous curve of self-adjoint Fredholm extensions of a curve of closed symmetric operators with fixed minimal domain and fixed {\it intermediate} domain $D_W…