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Hoger Ghahramani

Hoger Ghahramani

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId: 26032003000
HIndex:
Faculty: Faculty of Science
Address: Department of Mathematics, University of Kurdistan, Sanandaj, Iran. P. O. Bix. 416
Phone:
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Education

  • PhD. in Mathematical Analysis , Tarbiat Modares University , Iran (2002 - 2007)
    Thesis title:
  • MSc. in Mathematical Analysis , Amirkabir University of Technology (Tehran Polytechnic) , Iran (2000 - 2002)
    Thesis title:
  • BSc. in Applied math in computer , Amirkabir University of Technology (Tehran Polytechnic) , Iran (1997 - 2000)
    Thesis title:
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Courses

Bachelor Of Science
Master Of Science
PHD

Research activities

Journal Papers
On Lie triple centralizers of von Neumann algebras Behrooz Fadaee, Hoger Ghahramani (2024)
Lie superderivations on unital algebras with idempotents Hoger Ghahramani, Layla HaydariZadeh (2024)
POSNER’S FIRST THEOREM FOR PRIME MODULES Hoger Ghahramani, Mohammad Nader ghosseiri, Tahereh Rezaei (2024)
Derivable maps at commutative products on Banach algebras Abbas Zivari Kazempour, Hoger Ghahramani (2024)
Linearity of (generalized) $$*$$-Lie derivations and their structures on $$*$$-algebras Behrooz Fadaee, Hoger Ghahramani, Wu Jing (2024)
Centralizer-Like Additive Maps on the Lie Structure of Banach Algebras Hoger Ghahramani (2024)
Lie centralizers and commutant preserving maps on generalized matrix algebras Hoger Ghahramani, Amir Hossein Mokhtari, Feng Wei (2024)
Equivalent characterization of right (left) centralizers or centralizers on Banach algebras Hoger Ghahramani, Ghazal Moradkhani, satari saman (2023)
Some Generalizations of $$*$$-Lie Derivable Mappings and Their Characterization on Standard Operator Algebras Behrooz Fadaee, Hoger Ghahramani, Haidar Moradi (2023)
LIE CENTRALIZERS AND GENERALIZED LIE DERIVATIONS AT ZERO PRODUCTS Ajda Fosner, Hoger Ghahramani, Feng Wei (2023)
Lie triple centralizers on generalized matrix algebras Behrooz Fadaee, Hoger Ghahramani, Wu Jing (2023)
Anti-derivations on triangular rings Hoger Ghahramani, Mohammad Nader ghosseiri, Tahereh Rezaei (2023)
Characterizing linear maps of standard operator algebras through orthogonality Hoger Ghahramani, Amir Hossein Mokhtari (2022)
Characterizing Jordan Derivable Maps on Triangular Rings by Local Actions Hoger Ghahramani, Mohammad Nader ghosseiri, Tahereh Rezaei (2022)
Relative Amenability of Banach Algebras Vania Khodakarami, Hoger Ghahramani, Esmaeil Feizi (2022)
Centralizers of Lie Structure of Triangular Algebras Behrooz Fadaee, Ajda Fosner, Hoger Ghahramani (2022)
Lie centralizers at the zero products on generalized matrix algebras Behrooz Fadaee, Hoger Ghahramani (2022)
Anti-derivable linear maps at zero on standard operator algebras Kamal Fallahi, Hoger Ghahramani (2022)
Automatic Continuity of Derivations on Semidirect Products of Banach Algebras Hamid Farhadi, Hoger Ghahramani (2021)
Lie Maps on Triangular Algebras Without Assuming Unity Ronak Behfar, Hoger Ghahramani (2021)
On derivations, biderivations and superbiderivations of quaternion rings Hoger Ghahramani, Mohammad Nader ghosseiri, Sabrieh Safari (2021)
A note on zero Lie product determined nest algebras as Banach algebras Hoger Ghahramani, Kamal Fallahi, Vania Khodakarami (2021)
The first Cohomology Group of Semidirect Products of Banach Algebras Hamid Farhadi, Hoger Ghahramani (2021)
Ternary derivations of nest algebras Ajda Fosner, Hoger Ghahramani (2021)
Lie centralizers at zero products on a class of operator algebras Hoger Ghahramani, Wu Jing (2021)
Generalized Derivations and Generalized Jordan Derivations of Quaternion Rings Hoger Ghahramani, Mohammad Nader ghosseiri, Layla HaydariZadeh (2021)
The First and Second Hochschild Cohomology Groups of Banach Algebras with Coefficients in Special Symmetric Bimodules Esmaeil Feizi, Hoger Ghahramani, Vania Khodakarami (2020)
CHARACTERIZATION OF LINEAR MAPPINGS ON (BANACH) *-ALGEBRAS BY SIMILAR PROPERTIES TO DERIVATIONS Behrooz Fadaee, Kamal Fallahi, Hoger Ghahramani (2020)
THE FIRST COHOMOLOGY GROUP OF BANACH INVERSE SEMIGROUP ALGEBRAS WITH COEFFICIENTS IN -EMBEDDED BANACH BIMODULES Hoger Ghahramani (2020)
Linear Maps on $$C^\star $$C⋆-Algebras Behaving like (Anti-)derivations at Orthogonal Elements Behrooz Fadaee, Hoger Ghahramani (2020)
LINEAR MAPS ON BLOCK UPPER TRIANGULAR MATRIX ALGEBRAS BEHAVING LIKE JORDAN DERIVATIONS THROUGH COMMUTATIVE ZERO PRODUCTS Hoger Ghahramani, Mohammad Nader ghosseiri, Layla HaydariZadeh (2020)
The first cohomology group of some operator algebras on Hilbert C*-modules Hoger Ghahramani, satari saman (2020)
Left Ideal Preserving Maps on Triangular Algebras Hoger Ghahramani (2020)
Ideal submodules and topologicallycomplementable submodules of Hilbert C*-modules Hoger Ghahramani, satari saman (2020)
Integral Type Contractions in Partially Ordered Metric Spaces and Best Proximity Point Kamal Fallahi, Hoger Ghahramani, Ghasem Soleimani Rad (2020)
Linear Maps on Standard Operator Algebras Characterized by Action on Zero Products Amin Barari, Behrooz Fadaee, Hoger Ghahramani (2019)
2n-Weak module amenability of semigroup algebras Kamal Fallahi, Hoger Ghahramani (2019)
LEFT DERIVABLE MAPS AT NON-TRIVIAL IDEMPOTENTS ON NEST ALGEBRAS Hoger Ghahramani, satari saman (2019)
Some Notes on Semidirect Products of Banach Algebras Hamid Farhadi, Hoger Ghahramani (2019)
On the Lie derivations and generalized Lie derivations of quaternion rings Hoger Ghahramani, Mohammad Nader ghosseiri, Layla HaydariZadeh (2019)
CHARACTERIZATION OF REFLEXIVE CLOSURE OF SOME OPERATOR ALGEBRAS ACTING ON HILBERT C*-MODULES Hoger Ghahramani, satari saman (2019)
Linear Maps on Group Algebras Determined by the Action of the Derivations or Anti-derivations on a Set of Orthogonal Elements Hoger Ghahramani (2018)
Linear Maps on *-Algebras Acting on Orthogonal Elements Like Derivations or Anti-Derivations Hoger Ghahramani, Z. Patrick Pan (2018)
Jordan left derivations at the idempotent elements on reflexive algebras Behrooz Fadaee, Hoger Ghahramani (2018)
Characterizing Jordan Maps on Triangular Rings Through Commutative Zero Products Hoger Ghahramani (2018)
Some questions concerning superderivations on Z2-graded rings Hoger Ghahramani, Mohammad Nader ghosseiri, Sabrieh Safari (2017)
CHARACTERIZING JORDAN DERIVATIONS OF MATRIX RINGS THROUGH ZERO PRODUCTS Hoger Ghahramani (2015)
JORDAN DERIVATIONS ON BLOCK UPPER TRIANGULAR MATRIX ALGEBRAS Hoger Ghahramani (2015)
On Centralizers of Banach Algebras Hoger Ghahramani (2015)
On derivations and Jordan derivations through zero products Hoger Ghahramani (2014)
Additive maps on some operator algebras behaving like $(\alpha,\beta)$-derivations or generalized $(\alpha,\beta)$-derivations at zero-product elements Hoger Ghahramani (2014)
Jordan derivations on trivial extensions Hoger Ghahramani (2013)
ON RINGS DETERMINED BY ZERO PRODUCTS Hoger Ghahramani (2013)
Zero product determined triangular algebras Hoger Ghahramani (2013)
Zero product determined some nest algebras Hoger Ghahramani (2013)
Additive mappings derivable at non-trivial idempotents on Banach algebras Hoger Ghahramani (2012)
EXISTENCE, AUTOMATIC CONTINUITY AND INVARIANT SUBMODULES OF GENERALIZED DERIVATIONS ON MODULES Gholam Hossein Esslamzadeh, Hoger Ghahramani (2012)
Skew polynomial rings of formal triangular matrix rings Hoger Ghahramani (2012)
DIFFERENTIAL POLYNOMIAL RINGS OF TRIANGULAR MATRIX RINGS Hoger Ghahramani, Ahmad Moussavi (2008)
Conference Papers
Jordan derivations of a class of Banach algebras zamani dadaneh parvin, Hoger Ghahramani (2024)
Lie centralizers on nest algebras Ronak Behfar, Hoger Ghahramani (2023)
Derivations through two-sided orthogonality conditions on group algebras Hoger Ghahramani, satari saman (2023)
On bilinear maps on Banach *-algebra Behrooz Fadaee, Hoger Ghahramani (2019)
CENTRALIZERS ON ⋆-ALGEBRAS CHARACTERIZED BY LOCAL ACTIONS Behrooz Fadaee, Hoger Ghahramani (2019)
On automatic continuity of the derivations on module extension of Banach algebras Hamid Farhadi, Hoger Ghahramani (2018)
Commuting maps on quaternion rings Hoger Ghahramani, Mohammad Nader ghosseiri, Layla HaydariZadeh (2017)
Ideal submodules in Hilbert C*-Modules satari saman, Hoger Ghahramani (2017)
Inverse semigroup algebras are permanently weakly module amenable Hoger Ghahramani, Vania Khodakarami (2017)
On algebra homomorphisms of Lau products of Banach algebras Hamid Farhadi, Hoger Ghahramani (2017)
A study of some basic properties of Morita Equvalence by Ideal Submodules satari saman, Hoger Ghahramani (2017)
Automatic continuity of derivations on Lau product of Banach algebras‎ Hoger Ghahramani, Amjad Alipanah (2017)
Investigation matrices obtaining integrals involving polynomials and Daubechies scaling functions Amjad Alipanah, Hoger Ghahramani (2017)
ON JORDAN CENTRALIZERS OF QUATERNION RINGS Hoger Ghahramani, Mohammad Nader ghosseiri, Layla HaydariZadeh (2017)
Jordan derivable maps on triangular rings by commutative zero products Hoger Ghahramani (2016)
CHARACTERIZITION OF MAPS BEHAVING LIKE JORDAN LEFT DERIVATIONS AT SEPECIAL PRODUCT ELEMENTS ON SOME OPERATOR ALGEBRAS Behrooz Fadaee, Hoger Ghahramani (2014)
ZERO PRODUCT DETERMINED RINGS Farinaz Blorian, Hoger Ghahramani (2014)
ADDITIVE MAPS OF SOME OPERATOR ALGEBRAS BEHAVING LIKE DERIVATIONS AT IDEMPOTENT-PRODUCT ELEMENTS Hoger Ghahramani (2014)
CHARACTERIZING JORDAN DERIVATIONS OF SOME ALGEBRAS THROUGH ZERO PRODUCTS Hoger Ghahramani (2014)
Derivations of nest algebras characterized by acting on zero products Hoger Ghahramani (2012)
$(\alpha,\beta)$-Jordan derivations of triangular algebras Hoger Ghahramani, Jamal Khalili Khezrlak (2010)
Characterizations of generalized derivations and generalized Jordan derivations on Banach algebras Hoger Ghahramani, Jamal Khalili Khezrlak (2010)
Speech

Research interests

  • Banach Algebras
  • Mathematical Analysis
  • Operator Theory
  • Harmonic Analysis
  • Noncommutative Algebra
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Students

  • طاهره رضایی
    Name: Tahereh Rezaei
    AcademicLevel: PHD
    Field: Algebra
    Thesis: The structure of derivations, generalized derivations and certain related maps on some rings and modules
  • روناک بهفر
    Name: Roonak Behfar
    AcademicLevel: PHD
    Field: Mathematical Analysis
    Thesis: Characterizations of isometric mappings and centralizers on some matrix Banach algebras and operator algebras
  • وانیا خداکرمی
    Name: Vania Khodakarami
    AcademicLevel: PHD
    Field: Mathematical analysis
    Thesis: ‎Some generalizations of amenability of Banach algebras‎
  • بهروز فدایی
    Name: Behrooz Fafaee
    AcademicLevel: PHD
    Field: Mathematical Analysis
    Thesis: Charactrization of special classes of linear maps by local properties
  • سامان ستاری
    Name: Saman Sattari
    AcademicLevel: PHD
    Field: Mathematical Analysis
    Thesis: Lattice algebras on Hilbert C*-modules
  • حمید فرهادی
    Name: Hamid Farhadi
    AcademicLevel: PHD
    Field: Mathematical Analysis
    Thesis: Determining the first cohomology group for special classes of Banach algebras
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Executive activities

  • Consultant of Mathematics Student Association (1401 - present)
  • Consultant of Computetr Science Student Association (1400 - 1401)
  • Member of publication center of university of kurdistan (1400 - present)
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Scientific Societies Membership

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Links

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