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on the generalized regular covering of graphs with respect to asubgroup
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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:137 -138
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چکیده
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In this paper, by reviewing the concept of regular and h−regular covering of graphs, we extendproperties of regular covering of graph to properties of h−regular covering of graph. for example, bydefinition of covh;ge0(g=g e ), we obtain covh;ge0(g=g e ) ∼ = h=p∗π1(g; e ge), where p : ge ! g is an h−regularcovering of graph and h ≤ π1(g; g0).
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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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