Publications

Published:

1. S. Ghosh, K. Paul and D.Sain, On the symmetricity of norm-derivatives orthogonality in operator spaces, Mathematica Slovaca, \href{https://doi.org/10.1515/ms-2026-0020}

2.  S. Sohel, S. Ghosh, D. Sain and  K. Paul, On anti-coproximinal and strongly anti-coproximinal subspaces of functions spaces, Banach Journal of Mathematical Analysis, 20:31 (2026), 1-26. https://doi.org/10.1007/s43037-026-00496-z

3.  J. Chmielinski, S. Ghosh,  K. Paul, and D. Sain, Smoothness and approximate smoothness in normed linear spaces and operator spaces, Annals of Functional Analysis, 16 (2025), no. 23, 1-24. https://doi.org/10.1007/s43034-025-00413-9

4. S. Ghosh, K. Paul and D. Sain, Orthogonality induced by norm derivative: a new geometric constant and symmetry, Aequationes Mathematicae, 99 (2025), 883–904. https://doi.org/10.1007/s00010-025-01154-9

5. S. Sohel, S. Ghosh, D. Sain and K. Paul, On some special subspaces of a Banach space, form the perspective of best coapproximation, Monatshefte fur Mathematik, 204, no. 4, 1-19. https://doi.org/10.1007/s00605-023-01930-2

6. S. Ghosh, A. Mal,  K. Paul and D. Sain, On symmetric points with numerical radius norm}, Banach Journal of Mathematical Analysis,  17 (2023), no. 67, 1-25. https://doi.org/10.1007/s43037-023-00290-1

7.  D. Sain, S. Ghosh and   K. Paul, On $T$-orthogonality in Banach spaces, Colloquium  Mathematicum, 172 (2023), no. 2, 231-242. https://doi.org/10.4064/cm8962-11-2022

8.  D. Sain, S. Sohel, S. Ghosh and K.Paul, On best coapproximation problem in $\ell_1^n$, Linear and Multilinear Algebra, 72 (2022), no. 1, 31-49. https://doi.org/10.1080/03081087.2022.2153101

9.  D. Sain, S. Ghosh and K. Paul, On isosceles orthogonality and some geometric constants in a normed space, Aequationes Mathematicae, 97 (2023), no. 1, 147-160. https://doi.org/10.1007/s00010-022-00909-y

10.  D. Sain, S. Sohel, S. Ghosh and K. Paul, On best coapproximations in subspaces of diagonal matrices,  Linear and Multilinear Algebra, 71 (2021), no. 1, 47-62, https://doi.org/ 10.1080/03081087.2021.20178 

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Communicated:

1. Smoothness in the space of bounded linear operators on semi-Hilbert space (With S. Barik, K. Paul and D. Sain), https://doi.org/10.48550/arxiv.2509.00335 

2. On some  subspaces of vector-valued function space, from the perspective of Best coapproximation (With K. Paul, D. Sain and S. Sohel), https://doi.org/10.48550/arxiv.2508.04971