Bergman-Szegő kernel asymptotics in weakly pseudoconvex finite type cases
arXiv:2009.07159 · doi:10.1515/crelle-2022-0044
Abstract
We construct a pointwise Boutet de Monvel-Sjöstrand parametrix for the Szegő kernel of a weakly pseudoconvex three dimensional CR manifold of finite type assuming the range of its tangential CR operator to be closed; thereby extending the earlier analysis of Christ. This particularly extends Fefferman's boundary asymptotics of the Bergman kernel to weakly pseudoconvex domains in , in agreement with D'Angelo's example. Finally our results generalize a three dimensional CR embedding theorem of Lempert.