Criteria for the Absence of Point Spectrum on the Boundary of the Numerical Range of Tridiagonal Matrices
Srivastava, P. D., Birbonshi, Riddhick, Patra, Arnab
Published in National Academy of Sciences, India. Proceedings. Section A. Physical Sciences (01.06.2020)
Published in National Academy of Sciences, India. Proceedings. Section A. Physical Sciences (01.06.2020)
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Conference Proceeding
A note on the A-numerical range of semi-Hilbertian operators
Sen, Anirban, Birbonshi, Riddhick, Paul, Kallol
Published in Linear algebra and its applications (15.12.2024)
Published in Linear algebra and its applications (15.12.2024)
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Journal Article
On the numerical range of some weighted shift operators
Chakraborty, Bikshan, Ojha, Sarita, Birbonshi, Riddhick
Published in Linear algebra and its applications (01.05.2022)
Published in Linear algebra and its applications (01.05.2022)
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Journal Article
Determinantal polynomials of some weighted shift matrices with palindromic weights
Chakraborty, Bikshan, Ojha, Sarita, Birbonshi, Riddhick
Published in Annals of functional analysis (01.07.2023)
Published in Annals of functional analysis (01.07.2023)
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Journal Article
Flat portions of the numerical range of a 6×6 companion matrix
Saha Mondal, Swastika, Ojha, Sarita, Birbonshi, Riddhick
Published in Banach journal of mathematical analysis (01.07.2023)
Published in Banach journal of mathematical analysis (01.07.2023)
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Journal Article
Flat portions of the numerical range of a $$6 \times 6$$ companion matrix
Saha Mondal, Swastika, Ojha, Sarita, Birbonshi, Riddhick
Published in Banach journal of mathematical analysis (01.07.2023)
Published in Banach journal of mathematical analysis (01.07.2023)
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Journal Article
Determinantal polynomials of weighted shift matrices with palindromic harmonic weights
Chakraborty, Bikshan, Ojha, Sarita, Birbonshi, Riddhick
Published in Advances in operator theory (01.07.2023)
Published in Advances in operator theory (01.07.2023)
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Journal Article
A note on Anderson's theorem in the infinite-dimensional setting
Birbonshi, Riddhick, Spitkovsky, Ilya M., Srivastava, P.D.
Published in Journal of mathematical analysis and applications (01.05.2018)
Published in Journal of mathematical analysis and applications (01.05.2018)
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Journal Article
On Some Study of the Fine Spectra of Triangular Band Matrices
Patra, Arnab, Birbonshi, Riddhick, Srivastava, P. D.
Published in Complex analysis and operator theory (01.04.2019)
Published in Complex analysis and operator theory (01.04.2019)
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