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1,274 results on '"Pal, Sourav"'

162. Unraveling the origin of the cooperative adsorption of carbon monoxide in an Fe(II) metal–organic framework.

Author

Jose, Reshma, Pal, Sourav, and Rajaraman, Gopalan

Subjects
*CARBON monoxide, *METAL-organic frameworks, *GAS absorption & adsorption, *ADSORPTION (Chemistry), *CHOLESTERIC liquid crystals, *METALLOENZYMES, *IRON clusters
Abstract

Using periodic DFT calculations, we have established the mechanism of the unusual cooperative adsorption of CO gas in an Fe-bistriazolate MOF observed previously. The binding of one CO molecule to FeII triggers structural alteration of the neighbouring Fe centres, reducing the steric energy penalty and aiding cooperative adsorption. This is similar to the entatic state concept proposed for metalloenzymes, and offers novel strategies for selective gas adsorption. [ABSTRACT FROM AUTHOR]

Published
2023
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170. Decomposition of q-commuting contractions

Author

Pal, Sourav, Sahasrabuddhe, Prajakta, and Tomar, Nitin

Subjects
Mathematics - Functional Analysis, FOS: Mathematics, Functional Analysis (math.FA)
Abstract

In the literature, we have several results associated with canonical decomposition of commuting contractions. In this paper, we generalize a few of these results to q-commuting contractions. Here we mainly deal with doubly q-commuting contractions when $|q|=1$ or when $q$ is a unitary operator., Contains 25 pages. This is just a first draft. It will be revised soon and some more results will be added to it. arXiv admin note: substantial text overlap with arXiv:2202.01301

Published
2022

173. Electronic structure parameter of nuclear magnetic quadrupole moment interaction in metal monofluorides.

Author

Talukdar, Kaushik, Nayak, Malaya K., Vaval, Nayana, and Pal, Sourav

Subjects
QUADRUPOLE moments, NUCLEAR structure, MAGNETIC moments, ELECTRONIC structure, ALKALINE earth metals
Abstract

The electronic structure parameter (WM) of the nuclear magnetic quadrupole moment (MQM) interaction in numerous open-shell metal monofluorides (viz., MgF, CaF, SrF, BaF, RaF, and PbF) is computed in the fully relativistic coupled-cluster framework. The electron-correlation effects are found to be very important for the precise calculation of WM in the studied molecular systems. The molecular MQM interaction parameter scales nearly as Z2 in the alkaline earth metal monofluorides, where Z is the nuclear charge of metal. Our study identifies 223RaF as a good candidate for the experimental search of the nuclear MQM, which can help unravel the physics beyond the standard model in the hadron sector of matter. [ABSTRACT FROM AUTHOR]

Published
2020
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176. A model for an operator in an annulus

Author

Pal, Sourav and Tomar, Nitin

Subjects
Mathematics - Functional Analysis, Mathematics - Complex Variables, FOS: Mathematics, Complex Variables (math.CV), Functional Analysis (math.FA)
Abstract

A bounded Hilbert space operator $T$ for which the closure of an annulus \[ \mathbb{A}_r=\{z \ : \ r, Comment: 12 pages, Submitted to Journal

Published
2022

178. Development, Optimization, and In Vivo Validation of New Imidazopyridine Chemotypes as Dual TLR7/TLR9 Antagonists through Activity-Directed Sequential Incorporation of Relevant Structural Subunits

Author

Das, Nirmal, primary, Bandopadhyay, Purbita, additional, Roy, Swarnali, additional, Sinha, Bishnu Prasad, additional, Dastidar, Uddipta Ghosh, additional, Rahaman, Oindrila, additional, Pal, Sourav, additional, Ganguly, Dipyaman, additional, and Talukdar, Arindam, additional

Published
2022
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185. Fast and Scalable Classification of Structured Data in the Network

Author

Kundu, Sumantra R., Pal, Sourav, Schuba, Christoph L., Das, Sajal K., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Akyildiz, Ian F., editor, Sivakumar, Raghupathy, editor, Ekici, Eylem, editor, Oliveira, Jaudelice Cavalcante de, editor, and McNair, Janise, editor

Published
2007
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186. Video Rate Adaptation and Scheduling in Multi-rate Wireless Networks

Author

Pal, Sourav, Kundu, Sumantra R., Mazloom, Amin R., Das, Sajal K., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Akyildiz, Ian F., editor, Sivakumar, Raghupathy, editor, Ekici, Eylem, editor, Oliveira, Jaudelice Cavalcante de, editor, and McNair, Janise, editor

Published
2007
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187. Fast Classification and Estimation of Internet Traffic Flows

Author

Kundu, Sumantra R., Pal, Sourav, Basu, Kalyan, Das, Sajal K., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Rangan, C. Pandu, editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Uhlig, Steve, editor, Papagiannaki, Konstantina, editor, and Bonaventure, Olivier, editor

Published
2007
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189. The $\Gamma$-distinguished $\Gamma$-contractions

Author

Pal, Sourav and Tomar, Nitin

Subjects
Mathematics - Functional Analysis, Mathematics - Complex Variables, Astrophysics::High Energy Astrophysical Phenomena
Abstract

The symmetrized bidisc, which is the symmetrization of the bidisc $\mathbb D^2$, is defined by \[ \mathbb{G}=\{(z_1+z_2, z_1z_2) \ : \ |z_1, Comment: This is just a first draft and it will be revised soon. (34 Pages)

Published
2022

195. Call Admission Control and Scheduling Policies for UMTS Traffic for QoS Provisioning

Author

Pal, Sourav, Chatterjee, Mainak, Das, Sajal K., Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Mammeri, Zoubir, editor, and Lorenz, Pascal, editor

Published
2004
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200. Dilation, functional model and a complete unitary invariant for C.0Γn-contractions.

Author

Pal, Sourav

Subjects
*HILBERT space, *CHARACTERISTIC functions
Abstract

A commuting tuple of operators (S 1 , ... , S n − 1 , P) , defined on a Hilbert space ℋ , for which the closed symmetrized polydisc Γ n = ∑ 1 ≤ i ≤ n z i , ∑ 1 ≤ i < j ≤ n z i z j , ... , ∏ i = 1 n z i : | z i | ≤ 1 , i = 1 , ... , n is a spectral set, is called a Γ n -contraction. A Γ n -contraction is said to be pure or C. 0 if P is C. 0 , that is, if P * n → 0 strongly as n → ∞. We show that for any Γ n -contraction (S 1 , ... , S n − 1 , P) , there is a unique operator tuple (A 1 , ... , A n − 1) that satisfies the operator identities S i − S n − i * P = D P A i D P , i = 1 , ... , n − 1. This unique tuple is called the fundamental operator tuple or ℱ O -tuple of (S 1 , ... , S n − 1 , P). With the help of the ℱ O -tuple, we construct an operator model for a C. 0 Γ n -contraction and show that there exist n − 1 operators C 1 , ... , C n − 1 such that each S i can be represented as S i = C i + P C n − i * . We find an explicit minimal dilation for a class of C. 0 Γ n -contractions whose ℱ O -tuples satisfy a certain condition. Also, we establish that the ℱ O -tuple of (S 1 * , ... , S n − 1 * , P *) together with the characteristic function of P constitutes a complete unitary invariant for the C. 0 Γ n -contractions. The entire program is an analog of the Sz.-Nagy–Foias theory for C. 0 contractions. [ABSTRACT FROM AUTHOR]

Published
2023
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