Application Of The Seifert-Van Kampen Theorem To Certain Sums Of Topological Spaces

Mohd. Altab Hossain

doi:10.3329/jbas.v35i2.9424

Application Of The Seifert-Van Kampen Theorem To Certain Sums Of Topological Spaces

Authors

Mohd. Altab Hossain Department of Mathematics, University of Rajshahi, Rajshahi

DOI:

https://doi.org/10.3329/jbas.v35i2.9424

Keywords:

Sum, External sum, Fundamental group, Commutative diagram

Abstract

Seifert-Van Kampen theorem for the sum X + Y and external sum X ⊕Y of topological spaces is studied and the fundamental groups of these sums have been determined.

Key words: Sum; External sum; Fundamental group; Commutative diagram

DOI: http://dx.doi.org/10.3329/jbas.v35i2.9424 JBAS 2011; 35(2): 197-201

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How to Cite

Hossain, M. A. (2012). Application Of The Seifert-Van Kampen Theorem To Certain Sums Of Topological Spaces. Journal of Bangladesh Academy of Sciences, 35(2), 197–201. https://doi.org/10.3329/jbas.v35i2.9424