IPM Positions

Resident Researcher, School of Mathematics (2008 - 2013 )

Past IPM Positions

Associate Researcher (non-resident), School of Mathematics (2005 - 2006) Associate Researcher (non-resident), School of Mathematics (1998 - 2002)

Non IPM Affiliations

Professor of Kashan University

Related Papers

1.	A. R. Ashrafi (Joint with A. Hamzeh and S. Hossein-Zadeh) Extremal graphs under Wienner-type invariants MATCH Communications in Mathematical and in Computer Chemistry 69 (2013), 47-54  [abstract]

2.	A. R. Ashrafi (Joint with M. Tavakoli and F. Rahbarnia) Further results on hierarchical product of graphs Discrete Appl. Math. 161 (2013), 1162-1167  [abstract]

3.	A. R. Ashrafi (Joint with A. Behmaram and H. Yousefi-Azari) Wiener polarity index of fullerenes and hexagonal systems Appl. Math. Lett. 25 (2012), 1510-1513  [abstract]

4.	A. R. Ashrafi (Joint with Z. Yarahmadi) The Szeged, vertex PI, first and second Zagreb indices of corona product of graphs Filomat 26 (2012), 467-472  [abstract]

5.	A. R. Ashrafi (Joint with M. J. Nadjafi-Arani and H. Khodashenas) Graphs whose Szeged Wiener numbers differ by 4 and 5 Mathematical and Computer Modeling 55 (2012), 1644-1648  [abstract]

6.	A. R. Ashrafi (Joint with M. J. Nadjafi-Aarani and H. Khodashenas) Relationship between edge Szeged and edge Wiener indices of graphs Glasnik Matematicki 47 (2012), 21-29  [abstract]

7.	A. R. Ashrafi (Joint with H. Khodashenas, M. J. Nadjafi-Arani, and I. Gutman) A new proof of the Szeged-Wiener theorem Kragujevac J. Math. 35 (2011), 165-172  [abstract]

8.	A. R. Ashrafi (joint with M. Ghorbani and M. A. Hossein-Zadeh) The eccentric connectivity polynomial of some graph operations Serdica J. Computing 5 (2011), 101-116  [abstract]

9.	A. R. Ashrafi (Joint with A. Hamzeh and S. Hossein-zadeh) Calculation of some topological indices of splices and links of graphs J. Appl. Math. & Informatics. 29 (2011), 327-335  [abstract]

10.	A. R. Ashrafi (Joint with M. Mogharrab, M. J. Nadjafi-Arani and G. H. Fath-Tabar) Some bounds on Balaban index of a graph Utilitas Math. 84 (2011), 325-331  [abstract]

11.	A. R. Ashrafi (Joint with T. Doslic and A. Hamzeh) Extremal graphs with respect to the Zagreb coincides MATCH Communications in Mathematical and in Computer Chemistry 65 (2011), 85-92  [abstract]

12.	A. R. Ashrafi (Joint with S. Hossein-zadeh and A. Hamzeh) Extremal properties of Zagreb coindices and degree distance of graphs Miskolc Math. Notes 11 (2010), 129-137  [abstract]

13.	A. R. Ashrafi (Joint with M. H. Khalifeh and H. Yousefi-Azari) Another aspect of graph invariants depending on the path metric and an application in nanoscience Comput. Math. Appl. 60 (2010), 2460-2468  [abstract]

14.	A. R. Ashrafi (Joint with Z. Yarahmadi and T. Doslic) The bipartite edge frustration of composite graphs Discrete Appl. Math. (Accepted) [abstract]

15.	A. R. Ashrafi (Joint with Gh. H. Fath-Tabar and T. Doslic) On the Szeged and the Laplacian szeged spectrum of a graph Linear Algebra Appl. 433 (2010), 662-671  [abstract]

16.	A. R. Ashrafi (Joint with G. H. Fath-Tabar, M. J. Nadjafi-Arani, and M. Mogharrab) Some inequalities for Szeged-like topological indices of graphs MATCH Communications in Mathematical and in Computer Chemistry 63 (2010), 145-150  [abstract]

17.	A. R. Ashrafi (Joint with S. Hossein-Zadeh and A. Hamzeh) Wiener-type invariants of some graph operations Filomat 23 (2009), 103-113  [abstract]

18.	A. R. Ashrafi (Joint with M. J. Nadjafi and g. H. Fath-Tabar) Extremal graphs with respect to the vertex PI index Appl. Math. Lett. 22 (2009), 1838-1840  [abstract]

19.	A. R. Ashrafi (Joint with H. Yousefi-Azari and N. Sedigh) On the Szeged index of some Benzenoid graphs applicable in nanostructures Ars Combin. 90 (2009), 55-64  [abstract]

20.	A. R. Ashrafi (Joint with M. H. Khalifeh and H. Yousefi-Azari) The first and second Zagreb indices of some graph operations Discrete Appl. Math. 157 (2009), 804-811  [abstract]

21.	A. R. Ashrafi (Joint with M. H. Khalifeh, H. Yousefi-Azari, and S. G. Wagner) Some new results on distance-based graph invariants European J. Combin. 30 (2009), 1149-1163  [abstract]

22.	A. R. Ashrafi and Z. Yaoqing On 5- and 6-decomposable finite groups Math. Slovaca 53 (2003), 373-383  [abstract]

23.	A. R. Ashrafi and H. Sahraei On finite groups whose every normal subgroups is a union of the same number of conjugacy classes Vietnam J. Math. 30 (2002), 289-294  [abstract]

24.	A. R. Ashrafi On the number of maximal theta pairs in a finite group Acta Math. Inform. Univ. Ostraviensis 9 (2001), 5-12  [abstract]

25.	A. R. Ashrafi (Joint with M. R. Darafsheh and G. A. Moghani) (p, q, r)-Generations of the Conway group Co1 for odd p Kumamoto J. Math. 14 (2001), 1-20  [abstract]

26.	A. R. Ashrafi (Joint with M. R. Darafsheh) (2,p,q)-Generations of the Conway group Co1 Kumamoto J. Math. 13 (2000), 1-20  [abstract]

27.	A.R. Ashrafi Counting the centralizers of some finite groups Korean J. Comput. Appl. Math. 7 (2000), 115-124  [abstract]

28.	A. R. Ashrafi On finite groups with a given number of centralizers Algebra Colloq. 7 (2000), 139-146  [abstract]