A Note of Nielsen number

LEI Cheng-feng. A Note of Nielsen number[J]. Journal of nanchang hangkong university(Natural science edition), 2004, 18(1): 24-27.

Citation:

LEI Cheng-feng. A Note of Nielsen number[J]. Journal of nanchang hangkong university(Natural science edition), 2004, 18(1): 24-27.

Citation:

LEI Cheng-feng. A Note of Nielsen number[J]. Journal of nanchang hangkong university(Natural science edition), 2004, 18(1): 24-27.

Abstract

In this paper,the finite covering space and the advancements of the self-mapping are obtained by formation of normal subgroup of the fundamental group. And the N-L number is defined. The paper points out that the self-mapping Nielsen number can be estimated by using NL number.

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