We develop and additive, integer-valued degree theory for the class of quasilinear Fredholm mappings. This class is sufficiently large so that within its framework one can study fully nonlinear elliptic boundary value problems. In contrast to the Leary-Schauder degree, which is …
In this paper, we consider general [italic]S¹-actions, which may differ on the domain and on the range, with isotropy subspaces with one dimension more on the domain. In the special case of self-maps the [italic]S¹-degree is given by the usual degree of the invariant part, while…
In this paper, we consider general [italic]S¹-actions, which may differ on the domain and on the range, with isotropy subspaces with one dimension more on the domain. In the special case of self-maps the [italic]S¹-degree is given by the usual degree of the invariant part, while…
Mapping degree theory
by Ruiz, Jesus M., Outerelo, Enrique
fromGraduate studies in mathematics