Connected Hub Sets and Connected Hub Polynomials of the Lollipop Graph L_(p,1)

Let  be a graph with vertex set . The number of vertices in  is the order of  and is denoted by . The connected hub polynomial of Gdenoted by  is defined as  where  denotes the number of connected hub sets of  of cardinality and denotes the connected hub number of .Let  denotes the Lollipop graph wi...

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Main Authors: T Anggelinshiny, Baby Anitha
Format: Article
Language:English
Published: Accademia Piceno Aprutina dei Velati 2022-12-01
Series:Ratio Mathematica
Subjects:
Online Access:http://eiris.it/ojs/index.php/ratiomathematica/article/view/886
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author T Anggelinshiny
Baby Anitha
author_facet T Anggelinshiny
Baby Anitha
author_sort T Anggelinshiny
collection DOAJ
description Let  be a graph with vertex set . The number of vertices in  is the order of  and is denoted by . The connected hub polynomial of Gdenoted by  is defined as  where  denotes the number of connected hub sets of  of cardinality and denotes the connected hub number of .Let  denotes the Lollipop graph with  vertices. The connected hub polynomial of  denoted by  is defined as,where denotes the number of connected hub sets of  of cardinality , and denotes the connected hub number of .In this paper, we derive a recursive formula for . From this recursive formula, we construct the connected hub polynomial of  as,Also we study some properties of this polynomial
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spelling doaj.art-84dfb1c50086422c9454ec249b7112912022-12-22T02:56:31ZengAccademia Piceno Aprutina dei VelatiRatio Mathematica1592-74152282-82142022-12-01440293510.23755/rm.v44i0.886676Connected Hub Sets and Connected Hub Polynomials of the Lollipop Graph L_(p,1)T Anggelinshiny0Baby Anitha1Research Scholar (Reg. No. 20213282092009), Department of Mathematics, Women’s Christian College, Nagercoil, Tamil Nadu, India. Affiliated by Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli - 627 012Assistant Professor, Department of Mathematics, Women’s Christian College, Nagercoil, Tamil Nadu, India. Affiliated by Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli - 627 012Let  be a graph with vertex set . The number of vertices in  is the order of  and is denoted by . The connected hub polynomial of Gdenoted by  is defined as  where  denotes the number of connected hub sets of  of cardinality and denotes the connected hub number of .Let  denotes the Lollipop graph with  vertices. The connected hub polynomial of  denoted by  is defined as,where denotes the number of connected hub sets of  of cardinality , and denotes the connected hub number of .In this paper, we derive a recursive formula for . From this recursive formula, we construct the connected hub polynomial of  as,Also we study some properties of this polynomialhttp://eiris.it/ojs/index.php/ratiomathematica/article/view/886lollipop graph, connected hub set, connected hub number, connected hub polynomial
spellingShingle T Anggelinshiny
Baby Anitha
Connected Hub Sets and Connected Hub Polynomials of the Lollipop Graph L_(p,1)
Ratio Mathematica
lollipop graph, connected hub set, connected hub number, connected hub polynomial
title Connected Hub Sets and Connected Hub Polynomials of the Lollipop Graph L_(p,1)
title_full Connected Hub Sets and Connected Hub Polynomials of the Lollipop Graph L_(p,1)
title_fullStr Connected Hub Sets and Connected Hub Polynomials of the Lollipop Graph L_(p,1)
title_full_unstemmed Connected Hub Sets and Connected Hub Polynomials of the Lollipop Graph L_(p,1)
title_short Connected Hub Sets and Connected Hub Polynomials of the Lollipop Graph L_(p,1)
title_sort connected hub sets and connected hub polynomials of the lollipop graph l p 1
topic lollipop graph, connected hub set, connected hub number, connected hub polynomial
url http://eiris.it/ojs/index.php/ratiomathematica/article/view/886
work_keys_str_mv AT tanggelinshiny connectedhubsetsandconnectedhubpolynomialsofthelollipopgraphlp1
AT babyanitha connectedhubsetsandconnectedhubpolynomialsofthelollipopgraphlp1