English

Analytic properties of the Virasoro modular kernel

High Energy Physics - Theory 2017-06-30 v2

Abstract

On the space of generic conformal blocks the modular transformation of the underlying surface is realized as a linear integral transformation. We show that the analytic properties of conformal block implied by Zamolodchikov's formula are shared by the kernel of the modular transformation and illustrate this by explicit computation in the case of the one-point toric conformal block.

Cite

@article{arxiv.1610.02000,
  title  = {Analytic properties of the Virasoro modular kernel},
  author = {Nikita Nemkov},
  journal= {arXiv preprint arXiv:1610.02000},
  year   = {2017}
}

Comments

12 pages, v2: minor corrections and additional references

R2 v1 2026-06-22T16:13:29.919Z