129 citations · 879 across the 61 of their papers we have counts for
5 papers · 1 filter
Patterns of primes and composites on divisibility graph
R. Abiya, G. Ambika
We study the undirected divisibility graph in which the vertex set is a finite subset of consecutive natural numbers up to N.We derive analytical expressions for measures of the gr…
Multiplex Recurrence Networks from multi-lead ECG data
Sneha Kachhara, G. Ambika
We present an integrated approach to analyse the multi-lead ECG data using the frame work of multiplex recurrence networks (MRNs). We explore how their intralayer and interlayer to…
Patterns of Primes and Composites from Divisibility Network of Natural Numbers
Abiya Rajans, G. Ambika
We present the pattern underlying some of the properties of natural numbers, using the framework of complex networks. The network used is a divisibility network in which each node…
Early Warning Signals Indicate a Critical Transition in Betelgeuse
Sandip V. George, Sneha Kachhara, Ranjeev Misra +1
Critical transitions occur in complex dynamical systems, when the system dynamics undergoes a regime shift. These can often occur with little change in the mean amplitude of system…
Amplitude chimera and chimera death induced by external dynamical agents
Umesh Kumar Verma, G. Ambika
We report the emergence of stable amplitude chimeras and chimera death in a two-layer network where one layer has an ensemble of identical nonlinear oscillators interacting directl…