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Jan 19, 2009
Data Structures and Algorithms

Top-tree[werneck] partitions a tree into clusters, a cluster being defined as a connected subtree of the given tree. In figure LABEL:fig:partition-example, P, Q and R are clusters of the tree. A top-tree has several levels and each level induces a p…

An O(log(n)) Fully Dynamic Algorithm for Maximum matching in a tree

In this paper, we have developed a fully-dynamic algorithm for maintaining cardinality of maximum-matching in a tree using the construction of top-tr…
Oct 14, 2013

Non-universal gaugino mass GUT models in the light of dark matter and…

We perform a comprehensive study of $SU(5)$, $SO(10)$ and $E(6)$ supersymmetric GUT models where the gaugino masses are generated through the F-term …
May 24, 2019
Machine Learning
Artificial Intelligence

InfoRL: Interpretable Reinforcement Learning using Information Maxi…

Recent advances in reinforcement learning have proved that given an environment we can learn to perform a task in that environment if we have access …
Jan 07, 2018
Systems and Control

Systematic design methodology for development and flight testing of a…

This paper discusses the conceptual design and proof-of-concept flight demonstration of a novel variable pitch quadrotor biplane Unmanned Aerial Vehi…
Jan 14, 2009
Statistical Mechanics

Effects of interference in the dynamics of spin-1/2 transverse XY Cha…

We study the effects of interference on the quenching dynamics of a one-dimensional spin 1/2 $XY$ model in the presence of a transverse field ($h(t)$…
Jan 13, 2009

Model Independent Foreground Power Spectrum Estimation using WMAP 5-y…

In this paper, we propose & implement on WMAP 5-year data, a model independent approach of foreground power spectrum estimation for multifrequency ob…
Jul 12, 2014
Materials Science

Coupled Grain Boundary Motion with Triple Junctions

Coupled grain boundary (GB) motion has been studied in a two-dimensional tricrystal where a cylindrical grain is embedded at the center of the planar…
Aug 12, 2011
Statistical Mechanics

Quantum fidelity for one-dimensional Dirac fermions and two-dimension…

We study the scaling behavior of the fidelity ($F$) in the thermodynamic limit using the examples of a system of Dirac fermions in one dimension and …
Sep 19, 2017
Systems and Control

Modeling and Control of Inverted Flight of a Variable-Pitch Quadrotor

This paper carries out the mathematical modeling, simulation, and control law design for a quadrotor with variable-pitch propellers. The use of varia…
Jul 02, 2012
Databases
Data Structures and Algorithms

INSTRUCT: Space-Efficient Structure for Indexing and Complete Query …

The tremendous expanse of search engines, dictionary and thesaurus storage, and other text mining applications, combined with the popularity of readi…
Jul 06, 2013
Strongly Correlated Electrons
Statistical Mechanics

Block entanglement and fluctuations in finite size correlated electro…

The block entanglement entropy and fluctuations are investigated in one dimension in finite size correlated electron systems using the Gutzwiller wav…
May 16, 2019

Strong gravitational lensing by wormholes

We study strong gravitational lensing by a class of static wormhole geometries. Analytical approaches to the same are developed, and the results diff…
Jul 10, 2012

Non-linear density-velocity divergence relation from phase space dy…

We obtain the non-linear relation between cosmological density and velocity perturbations by examining their joint dynamics in a two dimensional dens…
Jan 22, 2019
Plasma Physics

Emergence of inertial waves from coherent vortex source in Yukawa med…

The evolution of isotropic, nondispersive, inertial wave, emerging from an unsteady initial coherent vortex is studied for strongly correlated Yukawa…
Jun 05, 2009
Statistical Mechanics

Adiabatic dynamics in passage across quantum critical lines and gaple…

It is well known that the dynamics of a quantum system is always non-adiabatic in passage through a quantum critical point and the defect density in …
May 21, 2008
Statistical Mechanics

Quenching along a gapless line: A different exponent for defect densi…

We use a new quenching scheme to study the dynamics of a one-dimensional anisotropic $XY$ spin-1/2 chain in the presence of a transverse field which …
Jul 08, 2012

Nonlinear variations in axisymmetric accretion

We subject the stationary solutions of inviscid and axially symmetric rotational accretion to a time-dependent radial perturbation, which includes no…
Oct 31, 2017
Subcellular Processes
Statistical Mechanics
Biological Physics

A biologically inspired two-species exclusion model: effects of RNA …

We introduce a two-species exclusion model to describe the key features of the conflict between the RNA polymerase (RNAP) motor traffic, engaged in t…
Apr 04, 2018
Applications
Methodology

On approximate least squares estimators of parameters on one-dimensio…

Chirp signals are quite common in many natural and man-made systems like audio signals, sonar, radar etc. Estimation of the unknown parameters of a s…
Nov 25, 2011
Materials Science
Mathematical Physics

Plastic flow in solids with interfaces

A non-equilibrium theory of isothermal and diffusionless evolution of incoherent interfaces within a plastically deforming solid is developed. The ir…
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