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on the h−regular covering of graph
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نویسنده
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kowkabi majid ,torabi hamid
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منبع
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كنفرانس نظريه گراف و تركيبيات جبري - 2020 - دوره : 11 - یازدهمین کنفرانس بین المللی نظریه گراف و ترکیبیات جبری ایران - کد همایش: 9919164009 - صفحه:81 -83
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چکیده
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In this paper, by reviewing the concept of covering of graphs, we define h-regular covering of graphand we present some properties of this concept. also, we extend the action of π1(g; g) on p−1(g) to anew action for graphs. we obtain some property of this action.
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کلیدواژه
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graph ,fundamental group ,covering of graph.
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آدرس
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university of gonabad, university of gonabad, mathematics, iran, ferdowsi university of mashhad, ferdowsi university of mashhad, mathematics, iran
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پست الکترونیکی
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h.torabi@ferdowsi.um.ac.ir
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Authors
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