Linear Algebra, Numerical Linear Algebra, and their Applications in Control Theory.
Distance problems for matrix pencils and polynomials, Perturbation theory for linear and nonlinear eigenvalue problems, Stability of control systems, Nearness problems in control theory, Matrix Procrustes Problems.
Invited talk in the minisymposium “Matrix Nearness Problems” at the 26th Conference of the International Linear Algebra Society, Virginia Tech, Blacksburg, VA, USA, May 18-22, 2026.
Title: On Rayleigh quotient optimization with Hermitian and symmetric constraints.
Invited talk in the minisymposium “Pencils, polynomial, and rational matrices” at the 26th Conference of the International Linear Algebra Society, NSYSU Kaohsiung, Taiwan, June 23-27, 2025.
Title: Eigenvalue backward errors of Rosenbrock systems and related optimization problems.
Invited talk in the workshop EMOSC 25: Energy-based modeling, simulation, and control of dynamical systems- Workshop in honor of Volker Mehrmann’s 70th birthday, Technical University Berlin, Germany, May 26-28, 2025.
Title: Finding the nearest bounded-real port-Hamiltonian system.
Research Seminar, Department of Mathematics and Operational Research, University of Mons, Belgium, June 13, 2024.
Title: Eigenvalue backward errors of Rosenbrock systems and related optimization problems.
Invited talk in the Department of Mathematics, University of Bari Aldo Moro, Italy, June 23, 2022.
Title: Nearness problems for matrices.
The Householder Symposium XXI, on Numerical Linear Algebra at Hotel Sierra Silvana, Selva di Fasano (Br), Italy, 12-17 June, 2022.
Title: Structured Distance to singularity for matrix pencils.
Research Seminar, Department of Mathematics and Operational Research, University of Mons, Belgium, June 5, 2022.
Title: Perturbation analysis of matrix polynomials with symmetry structures.
Invited talk in the online workshop “Matrix Computations and its application in systems, signal and control problems” organized by IIT Indore, February 16-21, 2021.
Title: Distance problems for matrix polynomials.
Invited talk in the online seminar series on “Linear Algebra and Operator Theory (Oselot)”, Organized by Christian Mehl (TU Berlin), Andre Ran (Amsterdam University, Netherlands) and (Jagiellonian University, Poland), November 26, 2020.
Title: Nearness problems for LTI systems using port-Hamiltonian systems.
Delivered seven hours of lecture on “Linear Algebra and its Applications” in TEQIP, Department of Mathematics, IIT Delhi, Dec 20-24, 2020.
Invited talk in the mini-symposium “Eigenvalue problems: perturbation and structure preservation” at the ICIAM-2019 conference, Valencia, Spain, July 15-19, 2019.
Title: Nearness problems for LTI systems using port-Hamiltonian systems.
Research Seminar, Department of Mathematics, Indian Institute of Technology Guwahati, Assam, India, December 28, 2018.
Title: Nearest stable matrix: from bad to good problem.
Invited talk in the Department of Mathematics and Operational Research, University of Mons, Belgium, December 07, 2018.
Title: Approximating the nearest continuous-time LTI systems.
Invited talk in the conference “International Conference on Mathematical Modeling and Scientific Computing” at the Indian Institute of Technology Indore, Madhya Pradesh, India, July 19-21, 2018.
Title: Computing nearest stable matrices.
Invited talk in the Department of Electrical Engineering, Indian Institute of Technology Bombay, Mumbai, India, August 04, 2017.
Title: Port-Hamiltonian systems and various distances to instability and stability.
Invited talk in the mini-symposium “Structured pseudospectra and stability radii” at the 88th Annual Meeting of GAMM, TU Ilmenau, Weimar, Germany, March 5-10, 2017.
Title: Real structured distance to instability for linear Hamiltonian systems with perturbed dissipation.
Invited talk in the mini-symposium “Perturbation theory and distance problems associated with eigenvalues” at the 20th Conference of the International Linear Algebra Society (ILAS), KU Leuven, Belgium, July 11-15, 2016.
Title: Structured distances to instability for linear Hamiltonian systems with dissipation.