R
R. E. Amritkar
Researcher at Physical Research Laboratory
Publications - 89
Citations - 1935
R. E. Amritkar is an academic researcher from Physical Research Laboratory. The author has contributed to research in topics: Synchronization (computer science) & Chaotic. The author has an hindex of 25, co-authored 89 publications receiving 1781 citations. Previous affiliations of R. E. Amritkar include Academia Sinica & Indian Institute of Science.
Papers
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General mechanism for amplitude death in coupled systems.
TL;DR: A general mechanism for amplitude death in coupled synchronizable dynamical systems is introduced and this mechanism is quite general and works for different types of direct coupling, such as diffusive, replacement, and synaptic couplings, and for different damped dynamics of the environment.
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Use of synchronization and adaptive control in parameter estimation from a time series
TL;DR: In this paper, a technique for estimating unknown parameters when a time series of only one variable from a multivariate nonlinear dynamical system is given is introduced, which employs a combination of two different control methods, linear feedback for synchronizing system variables and adaptive control.
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Self-organized and driven phase synchronization in coupled maps.
Sarika Jalan,R. E. Amritkar +1 more
TL;DR: The phase synchronization and cluster formation in coupled maps on different networks are studied to identify two different mechanisms: self-organized phase synchronization which leads to clusters with dominant intracluster couplings and driven phase synchronization, where the nodes of one cluster are driven by those of the others.
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Synapse loss and progress of Alzheimer's disease -A network model.
G. Kashyap,Deepti Bapat,Debasish Das,Ruturaj Gowaikar,R. E. Amritkar,Govindan Rangarajan,Vijayalakshmi Ravindranath,G. Ambika +7 more
TL;DR: Loss of spines caused by β-Amyloid (Aβ) peptide results in disintegration of the neuronal network over time with consequent cognitive dysfunctions in Alzheimer’s Disease (AD).
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Experimental observation of extreme multistability in an electronic system of two coupled Rössler oscillators.
Mitesh S. Patel,Unnati Patel,Abhijit Sen,Gautam C. Sethia,Chittaranjan Hens,Syamal K. Dana,Ulrike Feudel,Kenneth Showalter,Calistus N. Ngonghala,R. E. Amritkar +9 more
TL;DR: This work constructs and couple two analog circuits based on a modified coupled Rössler system and demonstrates the occurrence of extreme multistability through a controlled switching to different attractor states purely through a change in initial conditions for a fixed set of system parameters.