Publications (11)
Error Analysis of a Conforming FEM for Multidimensional Fragmentation Equations
Arushi, Naresh Kumar
In this work, we develop and analyze a higher-order finite element method for the multidimensional fragmentation equation. To the best of our knowledge, this is the first study to…
NH3 gas sensing over 2D Phosphorene sheet: A First-Principles Study
Naresh Kumar, Yogendra K. Gautam, Soni Mishra +2
First-principles based calculations were executed to investigate the sensing properties of ammonia gas molecules on two-dimensional pristine black phosphorene towards its applicati…
Luminosity distance in Swiss cheese cosmology with randomized voids and galaxy halos
Ãanna Ã. Flanagan, Naresh Kumar, Ira Wasserman
We study the fluctuations in luminosity distance due to gravitational lensing produced both by galaxy halos and large scale voids. Voids are represented via a "Swiss cheese" model…
A High-Order Conformal FEM for Multidimensional Nonlinear Collisional Breakage Equations: Analysis and Computation
Arushi Arushi, Naresh Kumar
Particle breakage due to collisional interactions plays a vital role in the development of several phenomena in science and engineering. The nonlinear collisional breakage equation…
Epidemic Modeling using Hybrid of Time-varying SIRD, Particle Swarm Optimization, and Deep Learning
Naresh Kumar, Seba Susan
Epidemiological models are best suitable to model an epidemic if the spread pattern is stationary. To deal with non-stationary patterns and multiple waves of an epidemic, we develo…
A Systematic Study on Weak Galerkin Finite Element Method for Second Order Parabolic Problems
Bhupen Deka, Naresh Kumar
A systematic numerical study on weak Galerkin (WG) finite element method for second order linear parabolic problems is presented by allowing polynomial approximations with various…
Error Analysis of a Fully Discrete Scheme for The Cahn--Hilliard Cross-Diffusion Model in Lymphangiogenesis
Boyi Wang, Naresh Kumar, Jinyun Yuan
This paper introduces a stabilized finite element scheme for the Cahn--Hilliard cross-diffusion model, which is characterized by strongly coupled mobilities, nonlinear diffusion, a…
Backreaction of superhorizon perturbations in scalar field cosmologies
Naresh Kumar, Eanna E. Flanagan
It has been suggested that the acceleration of the Universe may be due to the backreaction of perturbations to the Friedmann-Robertson-Walker background. For a Universe dominated b…
Faked Speech Detection with Zero Prior Knowledge
Sahar Al Ajmi, Khizar Hayat, Alaa M. Al Obaidi +3
Audio is one of the most used ways of human communication, but at the same time it can be easily misused to trick people. With the revolution of AI, the related technologies are no…
COVID-19 Pandemic Prediction using Time Series Forecasting Models
Naresh Kumar, Seba Susan
Millions of people have been infected and lakhs of people have lost their lives due to the worldwide ongoing novel Coronavirus (COVID-19) pandemic. It is of utmost importance to id…
Luminosity distance in Swiss cheese cosmology with randomized voids. II. Magnification probability distributions
Ãanna Ã. Flanagan, Naresh Kumar, Ira Wasserman +1
We study the fluctuations in luminosity distances due to gravitational lensing by large scale (> 35 Mpc) structures, specifically voids and sheets. We use a simplified "Swiss chees…