B. A. Kakavandi

The Exponential of Quasi Block-Toeplitz Matrices

Elahe Bolourchian, B. A. Kakavandi, 2022, Acta Mathematica Scientia.

Wasserstein barycenters in the manifold of all positive definite matrices

Elham Nobari, B. A. Kakavandi, 2019, Quarterly of Applied Mathematics.

A geometric mean for Toeplitz and Toeplitz-block block-Toeplitz matrices

Elham Nobari, B. A. Kakavandi, Bijan Ahmadi Kakavandi, 2018, Linear Algebra and its Applications.

Weak topologies in complete $CAT(0)$ metric spaces

Bijan Ahmadi Kakavandi, B. A. Kakavandi, 2012 .

Duality and subdifferential for convex functions on complete CAT(0) metric spaces

Massoud Amini, Bijan Ahmadi Kakavandi, M. Amini, 2010 .