نتایج جستجو برای: zagreb polynomial

تعداد نتایج: 100024  

Journal: :Kardiologia polska 2015
Željko Reiner

Professor Željko Reiner, FRCP (London), FESC, FACC gained his MD degree in 1976 from Zagreb University, Croatia. He also holds a PhD degree from Zagreb University. Currently, he is the head of the Department of Internal Medicine, University Hospital Centre Zagreb and the School of Medicine, Zagreb University. He has held many positions in the European Society of Cardiology (ESC) and European At...

2016
Zrinka Tarle Vlatko Pandurić Marko Jakovac

s of the 2 International congress of the School of Dental Medicine, University of Zagreb and Academy of Operative Dentistry 5 and 6 March 2016, Zagreb, Croatia Voditelj • Leader: prof. dr. sc. Zrinka Tarle

Journal: :Discrete Applied Mathematics 2010
Ali Reza Ashrafi Tomislav Doslic Asma Hamzeh

Recently introduced Zagreb coindices are a generalization of classical Zagreb indices of chemical graph theory. We explore here their basic mathematical properties and present explicit formulae for these new graph invariants under several graph operations.

Journal: :transactions on combinatorics 2014
farzaneh falahati nezhad ali iranmanesh abolfazl tehranian mahdieh azari

‎the second multiplicative zagreb coindex of a simple graph $g$ is‎ ‎defined as‎: ‎$${overline{pi{}}}_2left(gright)=prod_{uvnotin{}e(g)}d_gleft(uright)d_gleft(vright),$$‎ ‎where $d_gleft(uright)$ denotes the degree of the vertex $u$ of‎ ‎$g$‎. ‎in this paper‎, ‎we compare $overline{{pi}}_2$-index with‎ ‎some well-known graph invariants such as the wiener index‎, ‎schultz‎ ‎index‎, ‎eccentric co...

2009
Naveed Latif J. Pečarić I. Perić

Naveed Latif,1 J. Pečarić,1, 2 and I. Perić3 1 Abdus Salam School of Mathematical Sciences, GC University, Lahore 54000, Pakistan 2 Faculty of Textile Technology, University of Zagreb, 10000 Zagreb, Croatia 3 Faculty of Food Technology and Biotechnology, University of Zagreb, 10000 Zagreb, Croatia Correspondence should be addressed to Naveed Latif, [email protected] Received 31 July 2008;...

2013
Ottó Dóka Gitta Ficzek Svjetlana Luterotti Dane Bicanic Ruud Spruijt Josephus G. Buijnsters László Szalay György Végvári

Ottó Dóka1*, Gitta Ficzek2, Svjetlana Luterotti3, Dane Bicanic4,5, Ruud Spruijt4, Josephus G. Buijnsters6, László Szalay2 and György Végvári2 Department of Physics and Mathematics, University of West Hungary, Deák F. sq. 1, HU-9200 Mosonmagyaróvár, Hungary Department of Fruit Science, Corvinus University, Villányi str. 29–43, HU-1118 Budapest, Hungary Faculty of Pharmacy and Biochemistry, Unive...

Journal: :Vaccine 2005
P S Kulkarni M A Phadke S S Jadhav S V Kapre

The study by da Cunha et al. published in 2002 reported that MMR vaccine containing L-Zagreb mumps strain manufactured by Serum Institute of India Ltd. caused a high incidence of aseptic meningitis (AM) from routine surveillance during two mass immunization campaigns (MIC) conducted in 1998 in two states in Brazil. Since the results were contrary to those in India, Egypt and Bahamas, a critical...

The first reformulated Zagreb index $EM_1(G)$ of a simple graph $G$ is defined as the sum of the terms $(d_u+d_v-2)^2$ over all edges $uv$ of $G .$ In this paper, the various upper and lower bounds for the first reformulated Zagreb index of a connected graph interms of other topological indices are obtained.

Topological indices are widely used as mathematical tools to analyze different types of graphs emerged in a broad range of applications. The Hyper-Zagreb index (HM) is an important tool because it integrates the first two Zagreb indices. In this paper, we characterize the trees and unicyclic graphs with the first four and first eight greatest HM-value, respectively.

The first general Zagreb index is defined as $M_1^lambda(G)=sum_{vin V(G)}d_{G}(v)^lambda$. The case $lambda=3$, is called F-index. Similarly, reformulated first general Zagreb index is defined in terms of edge-drees as $EM_1^lambda(G)=sum_{ein E(G)}d_{G}(e)^lambda$ and the reformulated F-index is $RF(G)=sum_{ein E(G)}d_{G}(e)^3$. In this paper, we compute the reformulated F-index for some grap...

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