English

Arithmetic Central Extensions and Reciprocity Laws for Arithmetic Surface

Algebraic Geometry 2016-03-09 v1

Abstract

Three types of reciprocity laws for arithmetic surfaces are established. For these around a point or along a vertical curve, we first construct K2K_2 type central extensions, then introduce reciprocity symbols, and finally prove the law as an application of Parshin-Beilinson's theory of adelic complex. For reciprocity law along a horizontal curve, we first introduce a new type of arithmetic central extensions, then apply our arithmetic adelic cohomology theory and arithmetic intersection theory to prove the related reciprocity law. All this can be interpreted within the framework of arithmetic central extensions. We add an appendix to deal with some basic structures of such extensions.

Keywords

Cite

@article{arxiv.1603.02355,
  title  = {Arithmetic Central Extensions and Reciprocity Laws for Arithmetic Surface},
  author = {Kotaro Sugahara and Lin Weng},
  journal= {arXiv preprint arXiv:1603.02355},
  year   = {2016}
}
R2 v1 2026-06-22T13:05:56.620Z