ON SEMICOVERING, SUBSEMICOVERING, AND SUBCOVERING MAPS

In this paper, by reviewing the concept of subcovering and semicovering maps, we extend the notion of subcovering map to subsemicovering map. We present some necessary or sufficient conditions for a local homeomorphism to be a subsemicovering map. Moreover, we investigate the relationship between these conditions by some examples. Finally, we give a necessary and sufficient condition for a subsemicovering map to be semicovering.

Keywords:

local homeomorphism , fundamental group , covering map , semicovering map subcovering map , subsemicovering map

Authors

M. Kowkabi

Department of Mathematics, University of Gonabad, P.O. Box ۵۷۶۷۸-۹۶۹۱۹, Gonabad, Iran.

B. Mashayekhi

Department of Pure Mathematics, Ferdowsi University of Mashhad, P.O. Box ۱۱۵۹- ۹۱۷۷۵, Mashhad, Iran.

H. Torabi

Department of Pure Mathematics, Ferdowsi University of Mashhad, P.O. Box ۱۱۵۹- ۹۱۷۷۵, Mashhad, Iran.

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https://civilica.com/doc/964770

شناسه ملی سند علمی:

JR_JAS-7-2_010

تاریخ نمایه سازی: 18 آذر 1398

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Kowkabi, M. and Mashayekhi, B. and Torabi, H.,1399,ON SEMICOVERING, SUBSEMICOVERING, AND SUBCOVERING MAPS,https://civilica.com/doc/964770

Scientometrics

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Ranking of University of Gonabad

Type of center: دانشگاه دولتی

Paper count: 597

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