Dr. Subrata Shyam Roy

Academic Background

  1. Ph. D (mathematics), Indian Statistical Institute, Bangalore (Indian Statistical Institute), 2009


  1. Associate Professor, IISER Kolkata (current)

Homogeneous operators, operators in the Cowen-Douglas class.

  1. Shyam Roy, Subrataand Biswas, Shibananda. 2014."Functional models of ?n-contractions and characterization of ?n-isometries." Journal of functional analysis, 266, 6224-6255
  2. Shyam Roy, Subrata Misra, Gadadhar and Zhang, Genkai. 2013." Reproducing kernel for a class of weighted Bergman spaces on the symmetrized polydisc.." Proceedings of American Mathematical Society, 141, 2361–2370
  3. Shyam Roy, Subrata and Bhattacharyya, Tirthankar. 2012." Hilbert W?-modules and coherent states." Journal of Physics A: Mathematical and Theoretical, 45, 244020
  4. Shyam Roy, Subrata Bhattacharyya, Tirthankar and Pal, Sourav. 2012."Dilations of ?-contractions by solving operator equations." Advances in Mathematics, 230, 577-606


  • Somnath Hazra


  • Rachita Guria

Dr. Subrata Shyam Roy
Department Department-of-Mathematics-Statistics, AAC Building,
Room No. 320,
Indian Institute of Science Education and Research Kolkata
Mohanpur 741246 West Bengal, India
E-mail : ssroy@iiserkol.ac.in