A small cover is a closed manifold M^n with a locally standard (Z2)^n-action such that its orbit space is a simple convex polytope P^n. Let A^n denote an n-simplex and P(m) an m-gon. This paper gives formulas for ...A small cover is a closed manifold M^n with a locally standard (Z2)^n-action such that its orbit space is a simple convex polytope P^n. Let A^n denote an n-simplex and P(m) an m-gon. This paper gives formulas for calculating the number of D-J equivalent classes and equivariant homeomorphism classes of orientable small covers over the product space △^n1 × △^n2 × P(m), where n1 is odd.展开更多
基金supported by the National Natural Science Foundation of China(No.11371118)the Specialized Research Fund for the Doctoral Program of Higher Education(No.20121303110004)the Natural Science Foundation of Hebei Province(No.A2011205075)
文摘A small cover is a closed manifold M^n with a locally standard (Z2)^n-action such that its orbit space is a simple convex polytope P^n. Let A^n denote an n-simplex and P(m) an m-gon. This paper gives formulas for calculating the number of D-J equivalent classes and equivariant homeomorphism classes of orientable small covers over the product space △^n1 × △^n2 × P(m), where n1 is odd.