English

Torsion and divisibility for reciprocity sheaves and 0-cycles with modulus

Algebraic Geometry 2016-05-24 v2

Abstract

The notion of modulus is a striking feature of Rosenlicht-Serre's theory of generalized Jacobian varieties of curves. It was carried over to algebraic cycles on general varieties by Bloch-Esnault, Park, R\"ulling, Krishna-Levine. Recently, Kerz-Saito introduced a notion of Chow group of 00-cycles with modulus in connection with geometric class field theory with wild ramification for varieties over finite fields. We study the non-homotopy invariant part of the Chow group of 00-cycles with modulus and show their torsion and divisibility properties. Modulus is being brought to sheaf theory by Kahn-Saito-Yamazaki in their attempt to construct a generalization of Voevodsky-Suslin-Friedlander's theory of homotopy invariant presheaves with transfers. We prove parallel results about torsion and divisibility properties for them.

Keywords

Cite

@article{arxiv.1503.02161,
  title  = {Torsion and divisibility for reciprocity sheaves and 0-cycles with modulus},
  author = {Federico Binda and Jin Cao and Wataru Kai and Rin Sugiyama},
  journal= {arXiv preprint arXiv:1503.02161},
  year   = {2016}
}

Comments

15 pages, exposition improved