S. S. Sequeira

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20222026

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math.FA2026

Lévy measures for Dirichlet-type spaces on the unit bidisc

Santu Bera, Shanola S. Sequeira

For the Dirichlet-type space $D (ρ^{(1)}, ρ^{(2)})$ on the unit bidisc $D^{2},$ where $ρ^{(1)}$ and $ρ^{(2)}$ are finite positive Borel measures on the closed unit dis…

math.FA2026

Sum of self-commutators of commuting operators

Sameer Chavan, Md. Ramiz Reza, Shanola S. Sequeira

It is well known that every hyponormal operator on a complex Hilbert space whose spectrum has planar Lebesgue measure zero is normal. In particular, every compact hyponormal operat…