Academic Interests, Visits

Current Interests
Numerical Functional Analysis:
Computation of approximate eigenvalues, eigenvectors and spectral subspaces for large full matrices, integral operators and differential operators; efficient algorithms for numerical experiments and their stability.
Linear Algebra:
Error bounds for eigenvalues, matrix formulation of operator equations, condition numbers of a basis.

Research Visits
 
1984-1985, 1989
Institut IMAG, Universite Joseph Fourier, Grenoble, France
1986, 1987
Center for Mathematical Analysis, The Austrialian National University, Canberra, Australia
1991, 1992, 1994, 1996, 1998, 1999, 2000, 2001, 2002, 2005, 2007, 2010, 2012, 2015
Universite Jean Monnet, Saint-Etienne, France
1996
Mathematisches Institut, Eberhand-Karls Universitat, Tubingen, Germany
1998
Mathematisches Forschunginstitut, Oberwolfach, Germany
2004
University of Californial, Irvine, U.S.A.
2005
Centro de Matematica Universidade do Porto, Portugal
2015
Technische Universitat Berlin, Germany

Membership of Professional Societies
American Mathematical Society (Emeritus Member)
Indian Mathematical Society (Life Member)
Maharashtra Academy of Sciences (Life Member)
Bombay Mathematical Colloquim (Life Member)