Approximation of approximation numbers by truncation A Böttcher, AV Chithra, MNN Namboodiri
Integral Equations and Operator Theory 39, 387-395, 2001
33 2001 Korovkin-type approximation on C∗-algebras BV Limaye, MNN Namboodiri
Journal of Approximation Theory 34 (3), 237-246, 1982
14 1982 Perturbation of operators and approximation of spectrum K Kumar, MNN Namboodiri, S SERRA-CAPIZZANO
Proceedings-Mathematical Sciences 124, 205-224, 2014
13 2014 A generalized noncommutative Korovkin theorem and∗-closedness of certain sets of convergence BV Limaye, MNN Namboodiri
Ill. J. Math 28, 267-280, 1984
13 1984 Quasi hyperrigidity and weak peak points for non-commutative operator systems MNN Namboodiri, S Pramod, P Shankar, AK Vijayarajan
Proceedings-Mathematical Sciences 128, 1-14, 2018
12 2018 A note on a discrete version of Borg's theorem via Toeplitz-Laurent operators with matrix-valued symbols L Golinskii, K Kumar, MNN Namboodiri, S Serra-Capizzano
Bollettino dell'Unione Matematica Italiana 6 (1), 205-218, 2013
11 2013 Developments in noncommutative Korovkin-type theorems (Noncommutative structure in operator theory and its application) MNN Namboodiri
数理解析研究所講究録 1737, 91-104, 2011
11 2011 Truncation method for operators with disconnected essential spectrum MNN Namboodiri
Proceedings of the Indian Academy of Sciences-Mathematical Sciences 112, 189-193, 2002
8 2002 A Korovkin-type theory for non-self-adjoint Toeplitz operators VBK Kumar, MNN Namboodiri, R Rajan
Linear Algebra and its Applications 543, 140-161, 2018
7 2018 Theory of spectral gaps—a short survey MNN Namboodiri
J. Anal 12, 1-8, 2005
7 2005 Weak Korovkin approximation by completely positive linear maps on β (H) BV Limaye, MNN Namboodiri
Journal of approximation theory 42 (3), 201-211, 1984
7 1984 A short survey on preconditioners and Korovkin-type theorems VB Kiran Kumar, MNN Namboodiri, R Rajan
The Journal of Analysis 29, 425-447, 2021
5 2021 Geometric theory of weak Korovkin sets MNN Namboodiri
Oper. Matrices 6, 271-278, 2012
5 2012 Weak approximation by positive maps on -algebras BV Limaye, MNN Namboodiri
Mathematica Slovaca 36 (1), 91-99, 1986
5 1986 Approximation by positive functionals BV Limaye, MNN Namboodiri
J. Indian Math. Soc.(NS) 43 (1–4), 195-202, 1979
3 1979 Finite Dimensional Cebysev Subspaces of C*-Algebras MNN Namboodiri, S Pramod, AK Vijayarajan
Journal of the Ramanujan Mathematical Society, 63–74-63–74, 2014
2 2014 An elementary proof for a characterization of*-isomorphisms S Kulkarni, M Nair, M Namboodiri
Proceedings of the American Mathematical Society 134 (1), 229-234, 2006
2 2006 Spectral analysis of singular matrices in SIMO channel VBK Kumar, A Lexy, MNN Namboodiri, A Noufal
Applied Mathematics and Computation 442, 127760, 2023
1 2023 Čeby0šev Subspaces of C * -Algebras – a Survey MNN Namboodiri, S Pramod, AK Vijayarajan
Operator Algebras and Mathematical Physics: 24th International Workshop in …, 2015
1 2015 Čeby0šev Subspaces of C * -Algebras – a Survey MNN Namboodiri, S Pramod, AK Vijayarajan
Operator Algebras and Mathematical Physics: 24th International Workshop in …, 2015
1 2015