ON THE GENERAL FORM OF THE INTEGRAL-SIGMALEMMA IN SYMMETRIC FOCK SPACE

摘要

An important tool for integral transformation in symmetric Fock space is the so-called integral-sigma or Σ-lemma. It exists in several versions depending on the description of the random point configurations [4, 17, 15, 20]. Usually, one has to assume that the point configurations have no multiple points. The goal of this paper is to present a detailed proof of a very general form of it including configurations with multiple points.