ANÁLISIS MATEMÁTICO
DEPARTAMENTO
DEBMALYA
SAIN
Investigador en el periodo 2022-2022
Publicaciones en las que colabora con DEBMALYA SAIN (21)
2024
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A numerical range approach to Birkhoff–James orthogonality with applications
Banach Journal of Mathematical Analysis, Vol. 18, Núm. 2
2023
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A generalization of the Roberts orthogonality: from normed linear spaces to C∗ -algebras
Monatshefte fur Mathematik, Vol. 200, Núm. 3, pp. 605-625
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Approximate orthogonality in complex normed spaces: a directional approach
Linear and Multilinear Algebra, Vol. 71, Núm. 5, pp. 711-727
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Approximate smoothness in normed linear spaces
Banach Journal of Mathematical Analysis, Vol. 17, Núm. 3
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Birkhoff-James orthogonality and its local symmetry in some sequence spaces
Revista de la Real Academia de Ciencias Exactas, Fisicas y Naturales - Serie A: Matematicas, Vol. 117, Núm. 3
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EXTREME CONTRACTIONS ON FINITE-DIMENSIONAL BANACH SPACES
Colloquium Mathematicum, Vol. 172, Núm. 1, pp. 65-83
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Geometry of sub-algebras of Hol(Γ∪Int(Γ)) and zeros of holomorphic functions
Banach Journal of Mathematical Analysis, Vol. 17, Núm. 2
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NUMERICAL RADIUS INEQUALITIES OF OPERATOR MATRICES FROM A NEW NORM ON B(H)
Miskolc Mathematical Notes, Vol. 24, Núm. 2, pp. 653-664
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ON T-ORTHOGONALITY IN BANACH SPACES
Colloquium Mathematicum, Vol. 172, Núm. 2, pp. 231-241
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On best coapproximations in subspaces of diagonal matrices
Linear and Multilinear Algebra, Vol. 71, Núm. 1, pp. 47-62
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On isosceles orthogonality and some geometric constants in a normed space
Aequationes Mathematicae, Vol. 97, Núm. 1, pp. 147-160
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On subspaces of ℓ∞ and extreme contractions in L(X,ℓ∞n)
Monatshefte fur Mathematik, Vol. 202, Núm. 3, pp. 621-636
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On symmetric points with respect to the numerical radius norm
Banach Journal of Mathematical Analysis, Vol. 17, Núm. 4
2022
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A study of symmetric points in Banach spaces
Linear and Multilinear Algebra, Vol. 70, Núm. 5, pp. 888-898
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Birkhoff–James Orthogonality in Complex Banach Spaces and Bhatia–Šemrl Theorem Revisited
Mediterranean Journal of Mathematics, Vol. 19, Núm. 2
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Level numbers of a bounded linear operator between normed linear spaces and singular value decomposition revisited
Linear and Multilinear Algebra, Vol. 70, Núm. 19, pp. 3905-3922
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Norm attainment set and symmetricity of operators on ℓp2
Advances in Operator Theory, Vol. 7, Núm. 1
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On best approximations in Banach spaces from the perspective of orthogonality
Banach Journal of Mathematical Analysis, Vol. 16, Núm. 3
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On the Davis-Wielandt shell of an operator and the Davis-Wielandt index of a normed linear space
Collectanea mathematica, Vol. 73, Fasc. 3, pp. 521-533
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Some Remarks on Orthogonality of Bounded Linear Operators
Journal of Convex Analysis, Vol. 29, Núm. 1, pp. 165-181