Finiteness of Mapping Degree Sets for 3-Manifolds  

作　　者：Pierre DERBEZ Hong Bin SUN Shi Cheng WANG 

机构地区：[1]Centre de Mathematiques et d'Informatique, Technopole de Chateau-Gombert, 39, rue Frdddric Joliot-Curie-13453 Marseille Cedex 13, France [2]Department of Mathematics, Princeton University, Princeton NJ 08544, USA [3]Department of Mathematics, Peking University, Beijing 100871, P. R. China

出　　处：《Acta Mathematica Sinica,English Series》2011年第5期807-812,共6页数学学报（英文版）

基　　金：The third author is partially supported by National Natural Science Foundation of China （Grant No. 10631060） and Ph.D. grant of the Ministry of Education of China （Grant No. 5171042-055）

摘　　要：By constructing certain maps, this note completes the answer of the question： For which closed orientable 3-manifold N, is the set of mapping degrees D（M, N） finite for any closed orientable 3-manifold M？By constructing certain maps, this note completes the answer of the question： For which closed orientable 3-manifold N, is the set of mapping degrees D（M, N） finite for any closed orientable 3-manifold M？

关 键 词：3-Manifolds mapping degrees FINITENESS 

分 类 号：O189.3[理学—数学] P205[理学—基础数学]