1.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- S.N. Bose National Centre for Basic SciencesIN60 papers
- Saha Institute of Nuclear PhysicsIN55 papers
- Indian Statistical Institute, Bangalore CentreIN51 papers
- Jadavpur UniversityIN41 papers
- University of CalcuttaIN39 papers
- Indian Institute of Science BangaloreIN35 papers
- Institute of Mathematical SciencesIN34 papers
- Indian Institute of Technology MadrasIN28 papers
- Bose InstituteIN27 papers
- Centre National de la Recherche ScientifiqueFR26 papers
- Indian Statistical Institute, Delhi CentreIN20 papers
- Tata Institute of Fundamental ResearchIN20 papers
100 papers · 1 filter
Survivability of a metapopulation under local extinctions
Srilena Kundu, Soumen Majhi, Sourav Kumar Sasmal +2
A metapopulation structure in landscape ecology comprises a group of interacting spatially separated subpopulations or patches of the same species that may experience several local…
Probing Uncertainty Relations in Non-Commutative Space
Pritam Chattopadhyay, Ayan Mitra, Goutam Paul
In this paper, we compute uncertainty relations for non-commutative space and obtain a better lower bound than the standard one obtained from Heisenberg's uncertainty relation. We…
A new error-modeling of Hardy's paradox for superconducting qubits and its experimental verification
Soumya Das, Goutam Paul
Hardy's paradox (equivalently, Hardy's non-locality or Hardy's test) [\href{https://link.aps.org/doi/10.1103/PhysRevLett.68.2981}{L. Hardy, Phys. Rev. Lett. \textbf{68}, 2981 (1992…
Cloud Data Auditing Using Proofs of Retrievability
Binanda Sengupta, Sushmita Ruj
Cloud servers offer data outsourcing facility to their clients. A client outsources her data without having any copy at her end. Therefore, she needs a guarantee that her data are…
Conditional electron confinement in graphene via smooth magnetic fields
Dai-Nam Le, Van-Hoang Le, Pinaki Roy
In this article we discuss confinement of electrons in graphene via smooth magnetic fields which are finite everywhere on the plane. We shall consider two types of magnetic fields…
Bound states of the two-dimensional Dirac equation for an energy-dependent hyperbolic Scarf potential
A. Schulze-Halberg, P. Roy
We study the two-dimensional massless Dirac equation for a potential that is allowed to depend on the energy and on one of the spatial variables. After determining a modified ortho…
A Modification of Particle Swarm Optimization using Random Walk
Rajesh Misra, Kumar S. Ray
Particle swarm optimization comes under lot of changes after James Kennedy and Russell Eberhart first proposes the idea in 1995. The changes has been done mainly on Inertia paramet…
On distance and Laplacian matrices of trees with matrix weights
Fouzul Atik, M. Rajesh Kannan, R. B. Bapat
The \emph{distance matrix} of a simple connected graph is , where is the distance between the vertices and in . We consider a weighted tree $…
Equality of orthogonal transvection group and elementary orthogonal transvection group
Pratyusha Chattopadhyay
H. Bass defined orthogonal transvection group of an orthogonal module and elementary orthogonal transvection group of an orthogonal module with a hyperbolic direct summand. We also…
Natural SUSY at LHC with Right-Sneutrino LSP
Arindam Chatterjee, Juhi Dutta, Santosh Kumar Rai
We study an extension of the minimal supersymmetric standard model (MSSM) with additional right-handed singlet neutrino superfields. While such an extension incorporates a mechanis…
Revisiting Generalized Bertand's Postulate and Prime Gaps
Madhuparna Das, Goutam Paul
It is a well-known fact that for any natural number , there always exists a prime in . Our aim in this note is to generalize this result to . A lower as well a…
Weyl and transverse diffeomorphism invariant spin-2 models in D=2+1
D. Dalmazi, A. L. R. dos Santos, Subir Ghosh +1
There are two covariant descriptions of massless spin-2 particles in via a symmetric rank-2 tensor: the linearized Einstein-Hilbert (LEH) theory and the Weyl plus transvers…
Tracing cyclic homology pairings under twisting of graded algebras
Sayan Chakraborty, Makoto Yamashita
We give a description of cyclic cohomology and its pairing with K-groups for 2-cocycle deformation of algebras graded over discrete groups. The proof relies on a realization of mon…
Higher structure in the unstable Adams spectral sequence
Samik Basu, David Blanc, Debasis Sen
We describe a variant construction of the unstable Adams spectral the sequence for a space , associated to any free simplicial resolution of for or $…
-gluing for local complete intersections
Mrinal Kanti Das, Soumi Tikader, Md. Ali Zinna
We prove an analogue of the Affine Horrocks' Theorem for local complete intersection ideals of height in , where is a regular domain of dimension , which is essent…
Stochastic Approximation with Random Step Sizes and Urn Models with Random Replacement Matrices Having Finite Mean
Ujan Gangopadhyay, Krishanu Maulik
Stochastic approximation algorithm is a useful technique which has been exploited successfully in probability theory and statistics for a long time. The step sizes used in stochast…
Observable tensor-to-scalar ratio and secondary gravitational wave background
Arindam Chatterjee, Anupam Mazumdar
In this paper we will highlight how a simple vacuum energy dominated inflection-point inflation can match the current data from cosmic microwave background radiation, and predict l…
Impurity induced phase competition and supersolidity
Madhuparna Karmakar, R. Ganesh
Several material families show competition between superconductivity and other orders. When such competition is driven by doping, it invariably involves spatial inhomogeneities whi…
Robust Wald-Type Tests under Random Censoring with Applications to Clinical Trial Analyses
Abhik Ghosh, Ayanendranath Basu, Leandro Pardo
Randomly censored survival data are frequently encountered in applied sciences including biomedical or reliability applications and clinical trial analyses. Testing the significanc…
General Robust Bayes Pseudo-Posterior: Exponential Convergence results with Applications
Abhik Ghosh, Tuhin Majumder, Ayanendranath Basu
Although Bayesian inference is an immensely popular paradigm among a large segment of scientists including statisticians, most applications consider objective priors and need criti…
Boosting with Lexicographic Programming: Addressing Class Imbalance without Cost Tuning
Shounak Datta, Sayak Nag, Swagatam Das
A large amount of research effort has been dedicated to adapting boosting for imbalanced classification. However, boosting methods are yet to be satisfactorily immune to class imba…
Inertia Groups and Smooth Structures on Quaternionic Projective Spaces
Samik Basu, Ramesh Kasilingam
This paper deals with certain results on the number of smooth structures on quaternionic projective spaces, obtained through the computation of inertia group and its analogues, whi…
Quantum Signaling to the Past Using P-CTCS
Soumik Ghosh, Arnab Adhikary, Goutam Paul
Closed Timelike Curves (CTCs) are intriguing relativistic objects that allow for time travel to the past and can be used as computational resources. In Deutschian Closed Timelike C…
Revisiting Integer Factorization using Closed Timelike Curves
Soumik Ghosh, Arnab Adhikary, Goutam Paul
Closed Timelike Curves are relativistically valid objects allowing time travel to the past. Treating them as computational objects opens the door to a wide range of results which c…