English

On Q-conic bundles, II

Algebraic Geometry 2010-04-26 v1

Abstract

A Q\mathbb Q-conic bundle germ is a proper morphism from a threefold with only terminal singularities to the germ (Zo)(Z \ni o) of a normal surface such that fibers are connected and the anti-canonical divisor is relatively ample. We obtain the complete classification of Q\mathbb Q-conic bundle germs when the base surface germ is singular. This is a generalization of our previous paper math/0603736, which further assumed that the fiber over oo is irreducible.

Keywords

Cite

@article{arxiv.0710.0792,
  title  = {On Q-conic bundles, II},
  author = {Shigefumi Mori and Yuri Prokhorov},
  journal= {arXiv preprint arXiv:0710.0792},
  year   = {2010}
}

Comments

16 pages, LaTeX

R2 v1 2026-06-21T09:26:04.093Z