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MiS Preprint
26/2008
Dirac-harmonic maps from degenerating spin surfaces I: the Neveu-Schwarz case
Miaomiao Zhu
Abstract
We study Dirac-harmonic maps from degenerating spin surfaces with uniformly bounded energy and show the so-called generalized energy identity in the case that the domain converges to a spin surface with only Neveu-Schwarz type nodes. We find condition that is both necessary and sufficient for the $W^{1,2} \times L^{4}$ modulo bubbles compactness of a sequence of such maps.