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
88 papers · 1 filter
Seek and You Will Find: A New Optimized Framework for Efficient Detection of Pedestrian
Sudip Das, Partha Sarathi Mukherjee, Ujjwal Bhattacharya
Studies of object detection and localization, particularly pedestrian detection have received considerable attention in recent times due to its several prospective applications suc…
A factorization property of positive maps on -algebras
B. V. Rajarma Bhat, Hiroyuki Osaka
The purpose of this short note is to clarify and present a general version of an interesting observation by Piani and Mora (Physic. Rev. A 75, 012305 (2007)), linking complete posi…
Optimizing synchronization in multiplex networks of phase oscillators
Prosenjit Kundu, Pitambar Khanra, Chittaranjan Hens +1
We present an analytical scheme to achieve optimal synchronization in multiplex networks of frustrated and non-frustrated phase oscillators. We derive a multiplex synchrony alignme…
Intra-Variable Handwriting Inspection Reinforced with Idiosyncrasy Analysis
Chandranath Adak, Bidyut B. Chaudhuri, Chin-Teng Lin +1
In this paper, we work on intra-variable handwriting, where the writing samples of an individual can vary significantly. Such within-writer variation throws a challenge for automat…
Independence of work and entropy for equal energetic finite quantum systems: Passive state energy as an entanglement quantifier
Mir Alimuddin, Tamal Guha, Preeti Parashar
Although entropy is a necessary and sufficient quantity to characterize the order of work content for equal energetic (EE) states in the asymptotic limit, for the finite quantum sy…
Covariant connections on bicovariant differential calculus
Jyotishman Bhowmick, Sugato Mukhopadhyay
Given a bicovariant differential calculus such that the braiding map is diagonalisable in a certain sense, the bimodule of two-tensors admits a direct sum decomp…
On Robust Pseudo-Bayes Estimation for the Independent Non-homogeneous Set-up
Tuhin Majumder, Ayanendranath Basu, Abhik Ghosh
The ordinary Bayes estimator based on the posterior density suffers from the potential problems of non-robustness under data contamination or outliers. In this paper, we consider t…
Another new chaotic system: bifurcation and chaos control
Arnob Ray, Dibakar Ghosh
We propose a new simple three-dimensional continuous autonomous model with two nonlinear terms and observe the dynamical behavior with respect to system parameters. This system cha…
Extreme events in a network of heterogeneous Josephson junctions
Arnob Ray, Arindam Mishra, Dibakar Ghosh +3
We report rare and recurrent large spiking events in a heterogeneous network of superconducting Josephson junctions (JJ) connected through a resistive load and driven by a radio-fr…
Spin-selective transmission through a single-stranded magnetic helix
Suparna Sarkar, Santanu K. Maiti
Magnetic helix (MH) structure can be a role model for future spintronic devices. Utilizing the advantage of constructing possible magnetic configurations, in the present work first…
The Lattice Structure of Linear Subspace Codes
Pranab Basu, Navin Kashyap
The projective space , i.e. the set of all subspaces of the vector space , is a metric space endowed with the subspace distance metric. Braun, Etzi…
Non-commutative space engine: a boost to thermodynamic processes
Tanmoy Pandit, Pritam Chattopadhyay, Goutam Paul
We introduce quantum heat engines that perform quantum Otto cycle and the quantum Stirling cycle by using a coupled pair of harmonic oscillator as its working substance. In the qua…
Non-Commutative space: boon or bane for quantum engines and refrigerators
Pritam Chattopadhyay
Various quantum systems are considered as the working substance for the analysis of quantum heat cycles and quantum refrigerators. The ongoing technological challenge is how effici…
Modified Lomax Model: A heavy-tailed distribution for fitting large-scale real-world complex networks
Swarup Chattopadhyay, Tanujit Chakraborty, Kuntal Ghosh +1
Real-world networks are generally claimed to be scale-free, meaning that the degree distributions follow the classical power-law, at least asymptotically. Yet, closer observation s…
On Murray-von Neumann algebras -- I: Topological, Order-Theoretic and Analytical Aspects
Soumyashant Nayak
For a countably decomposable finite von Neumann algebra , we show that any choice of a faithful normal tracial state on engenders the same measure topolo…
On the Koszul formula in noncommutative geometry
Jyotishman Bhowmick, Debashish Goswami, Giovanni Landi
We prove a Koszul formula for the Levi-Civita connection for any pseudo-Riemannian bilinear metric on a class of centered bimodule of noncommutative one-forms. As an application to…
FSPVDsse: A Forward Secure Publicly Verifiable Dynamic SSE scheme
Laltu Sardar, Sushmita Ruj
A symmetric searchable encryption (SSE) scheme allows a client (data owner) to search on encrypted data outsourced to an untrusted cloud server. The search may either be a single k…
Some no-go results in Quantum Thermodynamics
Tamal Guha, Mir Alimuddin, Preeti Parashar
Thermodynamics is one of the fascinating branches of traditional physics to certify the occurrence of many natural processes. On the other hand, quantum theory is the most acceptab…
Optimizing Execution Cost Using Stochastic Control
Akshay Bansal, Diganta Mukherjee
We devise an optimal allocation strategy for the execution of a predefined number of stocks in a given time frame using the technique of discrete-time Stochastic Control Theory for…
Hardness and approximation for the geodetic set problem in some graph classes
Dibyayan Chakraborty, Florent Foucaud, Harmender Gahlawat +2
In this paper, we study the computational complexity of finding the \emph{geodetic number} of graphs. A set of vertices of a graph is a \emph{geodetic set} if any vertex of…
Higher Order Refinements by Bootstrap in Lasso and other Penalized Regression Methods
Debraj Das, Arindam Chatterjee, S. N. Lahiri
Selection of important covariates and to drop the unimportant ones from a high-dimensional regression model is a long standing problem and hence have received lots of attention in…
Confluent Second-Order Supersymmetric Quantum Mechanics and Spectral Design
David J. Fernandez C, Barnana Roy
The confluent second-order supersymmetric quantum mechanics, in which the factorization energies tend to a common value, is used to generate Hamiltonians with known spectra departi…
Hawking radiation in a non-covariant frame: the Jacobi metric approach
Avijit Bera, Subir Ghosh, Bibhas Ranjan Majhi
The present paper deals with a reformulation of the derivation of Hawking temperature for static and stationary black holes. In contrast to the conventional approach, where the cov…
Almost Sure Convergence of Randomized Urn Models with Application to Elephant Random Walk
Ujan Gangopadhyay, Krishanu Maulik
We consider a randomized urn model with objects of finitely many colors. The replacement matrices are random, and are conditionally independent of the color chosen given the past.…