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Bijan Ahmadi Kakavandi

Assistant Professor

Update: 2025-05-07

Bijan Ahmadi Kakavandi

Mathematical Sciences /

Journal Paper

  1. "A fast and efficient iterative method for solving some class of Toeplitz linear equations systems"
    Bijan Ahmadi Kakavandi, Elham Nobari
    Graduate Journal of Mathematics, Vol. 9, pp.1-9, 2025
  2. "Approximate diagonalization of some Toeplitz operators and matrices"
    Bijan Ahmadi Kakavandi, Elham Nobari
    LINEAR and MULTILINEAR ALGEBRA, Vol. 70, pp.7093-7114, 2022
  3. "The Exponential of Quasi Block-Toeplitz Matrices"
    Elahe Bolourchian, Bijan Ahmadi Kakavandi
    ACTA MATHEMATICA SCIENTIA, Vol. 42, pp.1018-1034, 2022
  4. "An approximate approach to the structured distance to normality of Toeplitz operators"
    Elahe Bolourchian, Bijan Ahmadi Kakavandi
    QUARTERLY OF APPLIED MATHEMATICS, Vol. 79, pp.431-443, 2021
  5. "Wasserstein barycenters in the manifold of all positive definite matrices"
    Bijan Ahmadi Kakavandi, Elham Nobari
    QUARTERLY OF APPLIED MATHEMATICS, Vol. 3, pp.655-669, 2019
  6. "Strongly continuous semigroups on locally finite graphs"
    Bijan Ahmadi Kakavandi
    Quaestiones Mathematicae, Vol. 42, pp.1301-1311, 2018
  7. "A geometric mean for Toeplitz and Toeplitz-block block-Toeplitz matrices"
    Elham Nobari, Bijan Ahmadi Kakavandi
    LINEAR ALGEBRA AND ITS APPLICATIONS, Vol. 548, pp.189-202, 2018
  8. "A note on co-accretive operators and gradient flows in Hadamard spaces"
    Bijan Ahmadi Kakavandi
    Journal of Nonlinear and Convex Analysis, Vol. 18, pp.2199-2208, 2017
  9. "nonlinear ergodic theorems for amenable semigroups of nonexpansive mappings in Hadamard spaces"
    Bijan Ahmadi Kakavandi
    Journal of Fixed Point Theory and Applications, pp.717-731, 2015
  10. "WEAK TOPOLOGIES IN COMPLETE CAT(0) METRIC SPACES"
    Bijan Ahmadi Kakavandi
    PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, Vol. 141, pp.1029-1039, 2012
  11. "non -linear ergodic theorems in complete non- positive curvature metric spaces"
    Bijan Ahmadi Kakavandi,
    Vol. 37, pp.14-20, 2011
  12. "Duality and subdifferential for convex functions on complete CAT metric spaces"
    Bijan Ahmadi Kakavandi, Masoud Amini
    NONLINEAR ANALYSIS-THEORY METHODS and APPLICATIONS, pp.3450-3455, 2010
  13. "Infinite Time-Dependent Network Equilibria with a Multivalued Cost Function"
    Behzad Djafari Rouhani, Bijan Ahmadi Kakavandi
    JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS, Vol. 131, pp.405-415, 2006

Conference Paper

  1. "some remarks on weak convergence and weak topologies in complete cat o metric spaces"
    Bijan Ahmadi Kakavandi
    international conference in modern analysis, 2011
  2. "Nonlinear semigroups in Hadamard spaces"
    Bijan Ahmadi Kakavandi
    , 2015