Books
Dilations, Completely Positive Maps and Geometry
with Tirthankar Bhattacharyya
TRIM series Hindustan Book Agency (2023)
Recent Papers (2022–2026)
Peripheral Poisson boundary: extensions and examples
with Astrid Swizell Dias
Pro. Indian Acad. Sci. (Math. Sci.) (2026) 136:28
Spectral radii for subsets of Hilbert C*-modules and
spectral properties of positive maps
with Biswarup Saha and Prajakta Sahasrabudhe
Positivity (2026) 30:49
Unitary Orthonormal Bases of Finite Dimensional Inclusions
with Keshab Chandra Bakshi
International Mathematics Research Notices, 2025, 2025(16), 1–22
A Survey of Collectively Compact Sets of Operators and Compact Operator Version of Nayak's Theorem
with Neeru Bala
Recent Developments in Spectral and Approximation Theory, pp145-172(2025)
Peripheral Poisson Boundary
with Samir Kar and Bharat Talwar
ISRAEL JOURNAL OF MATHEMATICS TBD (2025), 1–24
Block decompositions of operator moment dilations
with Anindya Ghatak and Santosh Kumar Pamula
Banach J. Math. Anal. (2025) 19:26
A MINIMAL COMPLETION THEOREM AND
ALMOST EVERYWHERE EQUIVALENCE
FOR COMPLETELY POSITIVE MAPS
with Arghya Chongdar
PROCEEDINGS OF THE
AMERICAN MATHEMATICAL SOCIETY
Volume 152, Number 11, November 2024, Pages 4703–4715
ON PRODUCTS OF SYMMETRIES IN
VON NEUMANN ALGEBRAS
with Soumyashant Nayak and P. Shankar
J. OPERATOR THEORY
92:2(2024), 579–596
Lattices of Logmodular Algebras
with Manish Kumar
Publ. RIMS Kyoto Univ. 60 (2024), 507–537
Nice Error Basis and Quantum Channel
with Purbayan Chakraborty and Uwe Franz
Open Systems & Information Dynamics
Vol. 31, No. 1 (2024) 2450003 (19 pages)
Iterative roots of multifunctions
with Chaitanya Gopalakrishna
Fundamenta Mathematicae, 2024
Peripherally automorphic unital completely positive maps
with Samir Kar and Bharat Talwar
Linear Algebra and its Applications, 678(2023)191–205
Schoenberg correspondence for k-(super)positive maps on
matrix algebras
with Purbayan Chakraborty and Uwe Franz
Positivity (2023) 27:51
Schoenberg correspondence for k-(super)positive maps on
matrix algebras
with Purbayan Chakraborty and Uwe Franz
Positivity (2023) 27:51
C*-extreme points of entanglement breaking maps
with Repana Devendra, Nirupama Mallick, K. Sumesh
Rev. Math. Phys. 35 (2023), no. 3, Paper No. 2350005, 17 pp. MR4568914.
The non-iterates are dense in the space of continuous self-maps
with Chaitanya Gopalakrishna
Nonlinearity 36 (2023), no. 6, 3419-3430. MR4594747.
Iterative square roots of functions
with Chaitanya Gopalakrishna
Ergodic Theory Dynam. Systems 43 (2023), no. 7, 2201-2227. MR4598772.
Poisson boundary on full Fock space
with Panchugopal Bikram, Sandipan De, Narayan Rakshit
Trans. Amer. Math. Soc. 375 (2022), 5645-5668. MR4469232.
Publications (2015–2021)
On submajorization and eigenvalue inequalities
with Arup Chattopadhyay, G. Sankara Raju Kosuru
Linear Multilinear Algebra, 63 (2015), no. 11, 2245-2253. MR3401940.
Stability of Quantum Dynamical Semigroups
with Sachi Srivastava
Operator Theory: Advances and Applications, Vol. 250, 67-85 (2015). MR3468209.
Pure semigroups of isometries on Hilbert C*-modules
with Michael Skeide
Journal of Functional Analysis 269 (2015), no. 5, 1539-1562. MR3369946.
C*- extreme maps and nests
with Manish Kumar
J. Funct. Anal. 282 (2022), no. 8, Paper No. 109397, 40 pp. MR4372150.
Selected Publications (Up to 2015)
A Problem of Powers and the Product of Spatial Product Systems
with V. Liebscher and M. Skeide
Contribution to the proceedings of the 28th Quantum Probability Conference, Guanajuato, Mexico
Maximal Commutative Subalgebras Invariant for CP-Maps: (Counter-)Examples
with Franco Fagnola and Michael Skeide
Infinite Dimensional Analysis, Quantum Probability and Related Topics
Minimal Cuntz-Krieger dilations and representations of Cuntz-Krieger algebras
with Santanu Dey and J. Zacharias
Proceedings of the Indian Academy of Sciences, Mathematical Sciences, Vol. 116 (2006), No. 2, 193-220. MR2226131.
Type I product systems of Hilbert modules
with S. D. Barreto, V. Liebscher and M. Skeide
J. Funct. Anal. 212 (2004), no. 1, 121-181. MR 2065240.