Approximation of approximation numbers by truncation A Böttcher, AV Chithra, MNN Namboodiri Integral Equations and Operator Theory 39, 387-395, 2001 | 32 | 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 |