乘积流形三穿孔球面和中的本质闭曲面

摘要

给出了乘积流形三穿孔球面和中本质闭曲面的完全分类和乘积流形三穿孔球面的Kneser-Haken数.%In this paper, we characterize essential closed surfaces in the pants sum of product I-bundle of closed surfaces, and give the Haken-Kneser number of the pants sum of product I-bundle of closed surfaces.