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Sajjad Mahmodrobati

Associate Professor

Update: 2025-01-15

Sajjad Mahmodrobati (Faculty Member)

Faculty of Basic Sciences / Pure Mathematics

Journal Paper

  1. "Classification of groups whose vanishing elements are contained in exactly two conjugacy classes"
    Sajjad Mahmodrobati
    Algebraic Structures and their Applications, 2024
  2. "Prime graphs on the set of vanishing class sizes"
    Sajjad Mahmodrobati, Roghayeh Hafezieh
    Ricerche di Matematica, 2024
  3. "A solvability criterion for finite groups related to vanishing conjugacy classes"
    Sajjad Mahmodrobati
    JOURNAL OF ALGEBRA AND ITS APPLICATIONS, 2024
  4. "The Isaacs-Navarro-Wolf Conjecture for Groups with One Vanishing Class Size"
    Ahanjideh Neda, Sajjad Mahmodrobati
    Mediterranean Journal of Mathematics, Vol. 20, pp.101-101, 2023
  5. "Groups whose vanishing class sizes are p-powers"
    Sajjad Mahmodrobati, Hafezieh Roghayeh
    COMMUNICATIONS IN ALGEBRA, Vol. 51, pp.2978-2982, 2023
  6. "Groups whose vanishing class sizes are prime powers"
    Sajjad Mahmodrobati, Roghayeh Hafezieh Balaman
    JOURNAL OF GROUP THEORY, Vol. 25, pp.151-162, 2022
  7. "Non-solvable groups all of whose indices are odd-square-free"
    Sajjad Mahmodrobati, HAFEZIEH BALAMAN Roghayeh
    Turkish Journal of Mathematics, Vol. 46, pp.746-752, 2022
  8. "Finite groups with at most six vanishing conjugacy classes"
    Sajjad Mahmodrobati, Mohammad Reza Darafsheh
    JOURNAL OF ALGEBRA AND ITS APPLICATIONS, Vol. 21, pp.1-12, 2022
  9. "Non-solvable groups each of whose vanishing class sizes has at most two prime divisors"
    Sajjad Mahmodrobati
    COMMUNICATIONS IN ALGEBRA, Vol. 49, pp.1280-1285, 2021
  10. "Erratum to: Real-Imaginary Conjugacy Classes and Real-Imaginary Irreducible Characters in Finite Groups (vol 103, pg 251, 2018)"
    Antonio Beltran Felip, Sajjad Mahmodrobati
    MATHEMATICAL NOTES, Vol. 110, pp.638-639, 2021
  11. "Non-solvable groups each of whose character degrees has at most two prime divisors"
    Babak Mir aali, Sajjad Mahmodrobati
    JOURNAL OF ALGEBRA AND ITS APPLICATIONS, Vol. 20, pp.1-13, 2021
  12. "Nearly Rational Frobenius Groups"
    Sajjad Mahmodrobati
    Iranian Journal of Mathematical Sciences and Informatics, Vol. 16, pp.191-194, 2021
  13. "Taketa's inequality and finite groups with a normal Hall subgroup"
    Sajjad Mahmodrobati
    COMMUNICATIONS IN ALGEBRA, Vol. 48, pp.1650-1652, 2020
  14. "On a graph related to subgroups generated by a conjugacy class in finite groups"
    Sajjad Mahmodrobati
    ALGEBRA COLLOQUIUM, Vol. 27, pp.193-198, 2020
  15. "A solvability criterion for finite groups related to character degrees"
    Babak Mir aali, Sajjad Mahmodrobati
    CZECHOSLOVAK MATHEMATICAL JOURNAL, Vol. 70, pp.1205-1209, 2020
  16. "A solvability criterion for finite groups related to the number of Sylow subgroups"
    Sajjad Mahmodrobati
    COMMUNICATIONS IN ALGEBRA, Vol. 48, pp.5176-5180, 2020
  17. "NON-REAL GROUPS WITH EXACTLY TWO CONJUGACY CLASSES OF THE SAME SIZE"
    Sajjad Mahmodrobati
    Communications of the Korean Mathematical Society, Vol. 34, pp.137-143, 2019
  18. "ON FINITE GROUPS HAVING A CERTAIN NUMBER OF CYCLIC SUBGROUPS"
    Sajjad Mahmodrobati
    International Journal of Group Theory, Vol. 8, pp.1-8, 2019
  19. "Isaacs-Seitz conjecture for certain groups"
    Sajjad Mahmodrobati
    COMMUNICATIONS IN ALGEBRA, Vol. 47, pp.3712-3715, 2019
  20. "Groups whose set of vanishing elements is the union of at most three conjugacy classe"
    Sajjad Mahmodrobati
    BULLETIN OF THE BELGIAN MATHEMATICAL SOCIETY-SIMON STEVIN, Vol. 26, pp.85-89, 2019
  21. "GROUPS WHOSE SET OF VANISHING ELEMENTS IS EXACTLY A CONJUGACY CLASS"
    Sajjad Mahmodrobati
    Algebraic Structures and their Applications, Vol. 6, pp.9-12, 2019
  22. "Real-Imaginary Conjugacy Classes and Real-Imaginary Irreducible Characters in Finite Groups"
    Sajjad Mahmodrobati
    MATHEMATICAL NOTES, Vol. 103, pp.251-258, 2018
  23. "Frobenius groups with almost distinct conjugacy class sizes"
    Sajjad Mahmodrobati
    Bulletin of the Malaysian Mathematical Sciences Society, Vol. 41, pp.1711-1715, 2018
  24. "Groups whose vanishing elements are of odd order"
    Sajjad Mahmodrobati
    JOURNAL OF ALGEBRA AND ITS APPLICATIONS, Vol. 17, pp.1-5, 2018
  25. "On the Regular Power Graph on the Conjugacy Classes of Finite Groups"
    Sajjad Mahmodrobati
    Mathematics Interdisciplinary Research, Vol. 3, pp.135-138, 2018
  26. "Some Connections between powers of conjugacy classes and degrees of irreducible characters in solvable groups"
    Sajjad Mahmodrobati
    Bulletin of the Iranian Mathematical Society, Vol. 42, pp.19-25, 2016
  27. "The power graph on the conjugacy classes of a finite group"
    Sajjad Mahmodrobati
    ACTA MATHEMATICA HUNGARICA, Vol. 20, pp.20-45, 2015
  28. "Powers of irreducible characters and conjugacy classes in finite groups"
    Mohammad Reza Darafsheh, Sajjad Mahmodrobati
    JOURNAL OF ALGEBRA AND ITS APPLICATIONS, Vol. 13, 2014
  29. "Products of conjugacy classes and products of irreducible characters in finite groups"
    Sajjad Mahmodrobati, Mohammad Reza Darafsheh
    Turkish Journal of Mathematics, Vol. 37, pp.607-616, 2013
  30. "On Products of Irreducible Characters and Products of Conjugacy Classes in Finite Groups"
    , Sajjad Mahmodrobati
    COMMUNICATIONS IN ALGEBRA, Vol. 41, pp.2879-2883, 2013
  31. ""
    Sajjad Mahmodrobati
    Vol. 9, pp.70-79, 2024
  32. "Solvable groups with four conjugacy classes outside a normal subgroup"
    Sajjad Mahmodrobati, Zeinab Foruzanfar
    Georgian Mathematical Journal, Vol. 30, pp.589-592, 2023
  33. "Philosophical Thinking about Abstract Algebra"
    Saeid Yousefi, Sajjad Mahmodrobati
    Vol. 20, pp.189-204, 2022
  34. "On the number of vanishing conjugacy classes of Frobenius groups"
    Sajjad Mahmodrobati
    Vol. 6, pp.39-48, 2021
  35. ""
    Vahid Bazoobandi, Sajjad Mahmodrobati
    Iranian Journal of Mathematical Sciences and Informatics, Vol. 15, pp.7-11, 2021
  36. ""
    Sajjad Mahmodrobati
    Vol. 4, pp.19-28, 2019

Conference Paper

  1. "On the Connectivity of Power Graph on the Conjugacy Classes of a Finite Group"
    Sajjad Mahmodrobati
    8th INTERNATIONAL CONFERENCE ON MATHEMATICS "An Istanbul Meeting for World Mathematicians", pp.1-3, 2024
  2. "Vanishing elements and the ascending fitting series of finite groups"
    Sajjad Mahmodrobati
    8th INTERNATIONAL CONFERENCE ON MATHEMATICS "An Istanbul Meeting for World Mathematicians", pp.1-2, 2024
  3. "Darafsheh conjecture for finite simple groups related to conjugacy class sizes"
    Sajjad Mahmodrobati
    12th Iranian group Theory Conference, 2020
  4. "On the regular power graph on th e conjugacy classes of finite groups"
    Sajjad Mahmodrobati
    9th Iranian group theory conference, 2017
  5. "Real-Imaginary Group"
    Sajjad Mahmodrobati
    9th Iranian group theory conference, 2017
  6. "the power graph and conjugacy classes of groups"
    Sajjad Mahmodrobati
    8th Iranian group theory conference, 2016
  7. "some example of Frobenius groups"
    Sajjad Mahmodrobati
    Third Biennial International Group Theory Conference, 2015
  8. "Irreducible character and conjugacy classes in finite group"
    Sajjad Mahmodrobati
    sixth national group theory conference, 2014
  9. "A note on the Isaacs-Knutson conjecture"
    Sajjad Mahmodrobati
    14th Iranian International Group Theory Conference, 2022
  10. ""
    Vahid Bazoobandi, Sajjad Mahmodrobati
    12th Iranian group Theory Conference, 2020
  11. "Simple groups all of whose conjugacy classes are odd-square-free"
    Sajjad Mahmodrobati
    , 2020
  12. "Groups whose set of vanishing elements is exactly a conjugacy class"
    Sajjad Mahmodrobati
    11th iranian group theory conference, pp.90-91, 2019
  13. "On the character graphs of nonsolvable finite groups"
    Babak Mir aali, Sajjad Mahmodrobati
    11th iranian group theory conference, pp.66-67, 2019
  14. "On non-vanishing elements in finite groups"
    Sajjad Mahmodrobati
    10th Iranian group Theory Conference, 2018