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Doç. Dr. Roghayeh HAFEZIEH
Matematik

Roghayeh HAFEZIEH
Telefon
(262) 605 13 84
E-Posta
roghayeh@gtu.edu.tr
Ofis
İşletme Binası, 52
Çalışma alanları
Finite Group Theory, Algebraic Graph Theory, Mathematical Chemistry.
  1. F. Altunbulak Aksu, R. Hafezieh, İ. Tuvay, “Involutary permutation automorphisms of binary linear codes”, to appear in J. of Algebra an its Applications.
  2. R. Hafezieh, Gülsemin Çonoğlu, 'Non-solvable groups whose all vanishing class sizes are odd-square-free', to appear in Advances in Group Theory and Applications, 2023.
  3. S.M. Robati, R. Hafezieh, 'Groups whose vanishing class sizes are p-powers', Communications in Algebra, 2023, 2978-2982.
  4. S.M. Robati, R. Hafezieh, 'Nonsolvable groups all of whose indices are odd-square-free', Turkish journal of mathematics, 46(3) 2022, 746-752.
  5. S.M. Robati, R. Hafezieh,‘ Groups whose vanishing class sizes are of prime powers’;Journal of Group Theory, 25(1) 2022, 151-162.
  6. R. Hafezieh, M.A. Hosseinzadeh, S. Hossein-Zadeh, A. Iranmanesh, "On cut vertices and eigenvalues of character graphs of solvable groups";Discrete Applied Mathematics, (303) 2021, 86-93.
  7. R. Hafezieh and P. Spiga, "An overview on the bipartite divisor graph for the set of irreducible character degrees", Rocky Mountain Journal of Mathematics, (6) 2020, 2073-2095.
  8. R. Hafezieh, "On regular bipartite divisor graph for the set of irreducible character degrees", Hact. J. Math. Stat., 48(6) 2019, 1620-1625.
  9. R. Hafezieh, "On nonsolvable groups whose prime degree graphs have four vertices and one triangle", Proceedings of Ischia Group Theory; International journal of group theory, (7) 2018, 1-6.
  10. R. Hafezieh, "Bipartite divisor graph for the set of irreducible character degrees", International journal of group theory, (6) 2017, 41-51.
  11. R. Hafezieh and P. Spiga, ''Groups having complete bipartite divisor graphs for their conjugacy class sizes'', Rend. Sem. Mat. Univ. Padova, (133) 2015, 117-123.
  12. R. Hafezieh and M. A. Iranmanesh, “Bipartite divisor graph for the product of subsets of integers”, Bulletin of Australian Mathematical Society, (87) 2013, 288-297.
  13. R. Hafezieh and M. A. Iranmanesh, “On some results on IP-graphs”, Turkish journal of Mathematics, (37) 2013, 560-570.
  14. M. A. Iranmanesh and R. Hafezieh, “The Eccentric Connectivity Index of Some Special Graphs”, Iranian Journal of Mathematical Chemistry, (2) 2011, 61-65.
  • GÜLSEMİN ÇONOĞLU, “On complex irreducible characters of finite groups and their zeros”, 2021
  • NURSEMIN FERATLAR, ''On Normalized Laplacian Spectrum of Some Special Graphs", 2018.
  • NOUR ALNAJJARINE, "On Character Degrees of Finite Groups and Some Associated Graphs", 2018.
  • SERKAN DORU,"On Cycles and Bipartite Divisor Graph Related to the Set of Conjugacy Class Sizes", 2015.
  • Doktora: Ph.D. of Pure Mathematics, Algebra:
    Yazd University, Yazd, Iran, Sep. 2008- Sep. 2012.
  • Yüksek lisans: M.Sc. of Pure Mathematics, Algebra:
    Tarbiat Moallem University, Tehran, Iran, Sep. 2006 – Sep. 2008.
  • Lisans: B.Sc. of Pure Mathematics:
    Vali-e-Asr University, Rafsanjan, Kerman, Iran, Sep. 2002- Sep. 2006.
Visiting Researcher: Bilkent University, Ankara, Turkey, Feb. 2012 – Feb. 2013.