Dr. Shibananda Biswas

Academic Background

  1. PhD (Mathematics), ISI Bangalore (Indian Statistical Institute), 2011
  2. MSc (Mathematics), IIT Kanpur, 2004
  3. BSc (Mathematics), Ramakrishna Mission Vidyamandira, Belur (University of Calcutta), 2002


  1. Associate Professor, IISER Kolkata (2020-current)
  2. Assistant Professor, IISER Kolkata (2014-2020)
  3. Inspire Faculty, Indian Statistical Institute, Kolkata (2012 - 2014)
  4. Post Doctoral Fellow, Ben Gurion University of the Negev, Israel (2010 - 2012)
  5. Senior Research Fellow, Indian Institute of Science (2009 - 2010)

Awards and Honors

  1. INSPIRE Faculty Award, Department of Science and Technology, India (2012-2018)

Extramural Grant and Project

  1. MATRICS, Science and Engineering Research Board, India (2018-2021).

Visits and Fellowship Obtained

  1. CIRM, Marseille, France - cancelled due to covid (Jun, 2020)
  2. ICMAT, Madrid, Spain (Jul, 2017)
  3. Mathematisches Forschungsinstitut Oberwolfach, Germany (Oct, 2016)
  4. University of Saarlands, Germany (Jul, 2014)
  5. Texas A & M University, USA (Aug, 2010)

Workshop Organized

  1. Organizer of Conference Complex Geometry and Operator Theory at ISI Bangalore, Organizing memeber of Vijyoshi camp at IISER Kolkata

For more details see the CV.

Functional Analysis

Multivariable operator theory, Non-commutative function theory
Operator theory on function spaces, specifically study of reproducing kernel Hilbert Modules and its classification using the tools of complex analytic/algebraic geometry

  1. Biswas, Shibananda;Ghosh, Gargi; Misra, Gadadhar and Shyam Roy, Subrata. 2019."On reducing submodules of Hilbert modules with S_n-invariant kernels." Journal of Functional Analysis, 276, 751 - 784
  2. Biswas, Shibananda; and Shalit, Orr Moshe. 2018."Stable division and essential normality: the non-homogeneous and quasi-homogeneous cases." Indiana University Mathematics Journal, 67, 169 - 185
  3. Biswas, Shibananda; and Shyam Roy, Subrata. 2014."Functional models of $\Gamma_n$ -contractions and characterization of $\Gamma_n$ -isometries ." Journal of Functional Analysis, 266, 6224-6255
  4. Biswas, Shibananda; Keshari, Dinesh Kumar and Misra, Gadadhar. 2013."Infinitely divisible metrics and curvature inequalities for operators in the Cowen-Douglas class." Journal of the London Mathematical Society. Second Series, 88, 941 - 956
  5. Biswas, Shibananda; and Misra, Gadadhar. 2012."Resolution of singularities for a class of Hilbert modules." Indiana University Mathematics Journal, 61, 1019-1050
  6. Biswas, Shibananda; Misra, Gadadhar and Putinar, Mihai. 2012."Unitary invariants for Hilbert modules of finite rank." Journal für diereine und angewandte Mathematik, 662, 165 - 204
  7. Biswas, Shibananda; D. S. Kaliuzhnyi-Verbovertskyi and V. Vinnikov, Similarity invariant envelopes and extension of nc functions, appendix to Foundations of Free Noncommutative Function Theory, Mathematical Surveys and Monographs, AMS, Surv/199, 2014.
  8. Biswas, Shibananda; and G. Misra, A sheaf theoretic model for analytic Hilbert modules, Mathematisches Forschungsin-stitut Oberwolfach, DOI: 10.4171/OWR/2009/20.



Project Students

Dr. Shibananda Biswas
Department Department-of-Mathematics-Statistics, AAC Building,
Room No. 312,
Indian Institute of Science Education and Research Kolkata
Mohanpur 741246 West Bengal, India
E-mail : shibananda@iiserkol.ac.in