390 citations · 1.4k across the 18 of their papers we have counts for
18 papers
Nth order smooth positon and breather-positon solutions of a generalized nonlinear Schrödinger equation
N. Vishnu Priya, S. Monisha, M. Senthilvelan +1
In this paper, we investigate smooth positon and breather-positon solutions of a generalized nonlinear Schrödinger (GNLS) equation which contains higher order nonlinear effects. Wi…
Mitigating the effects of measurement noise on Granger causality
Hariharan Nalatore, Govindan Rangarajan, Mingzhou Ding
Computing Granger causal relations among bivariate experimentally observed time series has received increasing attention over the past few years. Such causal relations, if correctl…
Critical Lattice Size Limit for Synchronized Chaotic State in 1-D and 2-D Diffusively Coupled Map Lattices
P. Palaniyandi, Govindan Rangarajan
We consider diffusively coupled map lattices with neighbors (where is arbitrary) and study the stability of synchronized state. We show that there exists a critical lattice…
Granger Causality and Cross Recurrence Plots in Rheochaos
Rajesh Ganapathy, Govindan Rangarajan, A. K. Sood
Our stress relaxation measurements on wormlike micelles using a Rheo-SALS (rheology + small angle light scattering) apparatus allow simultaneous measurements of the stress and the…
Estimating Granger causality from Fourier and wavelet transforms of time series data
Mukeshwar Dhamala, Govindan Rangarajan, Mingzhou Ding
Experiments in many fields of science and engineering yield data in the form of time series. The Fourier and wavelet transform-based nonparametric methods are used widely to study…
Spatial synchronization and extinction of species under external forcing
R. E. Amritkar, Govindan Rangarajan
We study the interplay between synchronization and extinction of a species. Using a general model we show that under a common external forcing, the species with a quadratic saturat…