Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter April 2, 2011

Topological types of 3-dimensional small covers

  • Zhi Lü EMAIL logo and Li Yu
From the journal Forum Mathematicum


In this paper we study the (equivariant) topological types of a class of 3-dimensional closed manifolds (i.e., 3-dimensional small covers), each of which admits a locally standard (ℤ2)3-action such that its orbit space is a simple convex 3-polytope. We introduce six equivariant operations on 3-dimensional small covers. These six operations are interesting because of their combinatorial natures. Then we show that each 3-dimensional small cover can be obtained from ℝ P3 and S1 × ℝ P2 with certain (ℤ2)3-actions under these six operations. As an application, we classify all 3-dimensional small covers up to (ℤ2)3-equivariant unoriented cobordism.

Received: 2008-11-12
Revised: 2009-04-06
Published Online: 2011-04-02
Published in Print: 2011-March

© de Gruyter 2011

Downloaded on 21.2.2024 from
Scroll to top button