Subhasish Subhasish

activity

20102023

most citedAbsolving the SSINS of Precision Interferometric Radio Data: A New Technique for Mitigating Faint Radio Frequency Interference

65 citations · 73 across the 9 of their papers we have counts for

collaborators

9 papers

math.AG2023

On motives of parabolic Higgs bundles and parabolic connections

Sumit Roy

Let $X$ be a compact Riemann surface of genus $g \geq 2$ and let $D \subset X$ be a fixed finite subset. We considered the moduli spaces of parabolic Higgs bundles and of parabolic…

math.AG2023

On torsion-freeness of Kähler differential sheaves

Nilkantha Das, Sumit Roy

Let $X$ be a normal algebraic variety over an algebraically closed field $k$ of characteristic zero. We prove that the Kähler differential sheaf of $X$ is torsion-free if and only…

math.AG2022

Spectral data for parabolic projective symplectic/orthogonal Higgs bundles

Sumit Roy

Hitchin in [Duke Math. J. 54 (1), 91-114 (1987)] introduced a proper morphism from the moduli space of stable $G$ -Higgs bundles ($G=\mathrm{GL}(n,\mathbb{C}),\mathrm{Sp}(2m,\mathbb…

math.AG2022

Picard group of moduli of parabolic Higgs bundles

Sumit Roy

Let $X$ be a compact Riemann surface of genus $g \geq 3$ and let $M_{par}$ be the moduli space of semistable parabolic bundles over $X$ . Let $\mathcal{M}_{\mathrm…

math.AG2022

On birational Torelli theorems

Sumit Roy

Let $G$ be a simple simply-connected connected linear algebraic group over $C$ . We proved a $2$ -birational Torelli theorem for the moduli space of semistable principal $G$ …

math.AG2021

Torelli theorem for the moduli space of symplectic parabolic Higgs bundles

Sumit Roy

Let $(X, D)$ and $(X^{'}, D^{'})$ be two compact Riemann surfaces of genus $g \geq 4$ with the set of marked points $D \subset X$ and $D^{'} \subset X^{'}$ . Fix a parabolic line bundle $L$ with…

math.AG2020★ 4 cited

Hitchin fibration on moduli of symplectic and orthogonal parabolic Higgs bundles

Sumit Roy

Let $X$ be a compact Riemann surface of genus $g \geq 2$ , and let $D \subset X$ be a fixed finite subset. Let $M (r, d, α)$ denote the moduli space of stable parabolic $G$ -b…

astro-ph.IM2019★ 65 cited

Absolving the SSINS of Precision Interferometric Radio Data: A New Technique for Mitigating Faint Radio Frequency Interference

Michael J. Wilensky, Miguel F. Morales, Bryna J. Hazelton +3

We introduce a new pipeline for analyzing and mitigating radio frequency interference (RFI), which we call Sky-Subtracted Incoherent Noise Spectra (SSINS). SSINS is designed to ide…

math-ph2010★ 4 cited

Coherent States on Hilbert Modules

S. Twareque Ali, T. Bhattacharyya, S. Shyam Roy

We generalize the concept of coherent states, traditionally defined as special families of vectors on Hilbert spaces, to Hilbert modules. We show that Hilbert modules over $C^{*}$ -al…