Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleRelative Morse Index Theory Without Compactness Assumption.AuthorsWang, Qi; Wu, LiAbstractWe develop the relative Morse index theory for linear self-adjoint operator equation without compactness assumption and give the relationship with the index defined in [J. Differential Equations, 2016, 260(4): 3749–3784].SubjectsSELFADJOINT operators; OPERATOR equations; MORSE theory; DIFFERENTIAL equations; LINEAR operators; FREDHOLM operatorsPublicationFrontiers of Mathematics, 2023, Vol 18, Issue 3, p731ISSN2731-8648Publication typeArticleDOI10.1007/s11464-019-0013-3