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20032024
most citedA Morse Index Theorem and bifurcation for perturbed geodesics on Semi-Riemannian Manifolds

45 citations · 53 across the 6 of their papers we have counts for

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math.AP2024

Spectral flow and variational bifurcation

J. Pejsachowicz

We show that the principle "nonvanishing of spectral flow of the linearization along the trivial branch entails bifurcation of nontrivial solutions ", proved in \cite{FPR} for crit…

math.AP2011

The family index theorem and bifurcation of solutions of nonlinear elliptic bvp

Jacobo Pejsachowicz

We obtain some new bifurcation criteria for solutions of general boundary value problems for nonlinear elliptic systems of partial differential equations. The results are of differ…