Dr G Ambika- Recent Research publications


  • Detecting abnormality in heart dynamics from multifractal analysis of ECG signals, Snehal M. Shekatkar, Yamini Kotriwar, K.P. Harikrishnan and G. Ambika, Scientific Reports 7: 15127(2017)- DOI:10.1038/s41598-017-15498-z, Link

  • Mechanisms for tuning clustering and degree-correlations in directed networks, G. Kashyap and G Ambika, Journal of Complex Networks(2017)0000, 1-21, doi: 10.1093/comnet/cnx057

  • Recurrence network measures for hypothesis testing using surrogate data: application to black hole light curves, Rinku Jacob, K. P. Harikrishnan, R. Misra and G. Ambika , Commun Nonlinear Sci Numer Simulat (2018) 54, 84–99, doi.org/10.1016/j.cnsns.2017.05.018

  • Is a hyperchaotic attractor superposition of two multifractals,K. P. Harikrishnan, R. Misra and G. Ambika, Chaos Solitons and Fractals103, 450-459(2017) Link

  • Detecting dynamical states from noisy time series using bicoherence, Sandip V. George, G. Ambika and R. Misra, - Nonlinear Dyn (2017)-DOI 10.1007/s11071-017-3465-6

  • Measure for degree heterogeneity in complex networks and its application to recurrence network analysis, Rinku Jacob, K. P. Harikrishnan, R. Misra and G. Ambika , R. Soc. open sci. 4: 160757(2017) - Link

  • Cross over of recurrence networks to random graphs and random geometric graphs,Rinku Jacob, K. P. Harikrishnan, R. Misra and G. Ambika -Pramana -J. Phys. 88: 37(2017) -DOI 10.1007/s12043-016-1339-y

  • Can recurrence networks show small-worldproperty?,Rinku Jacob, K. P. Harikrishnan, R. Misra and G. Ambika - PhysLett A 380, 2718-2723(2016)-doi:10.1016/j.physleta.2016.06.038

  • Suppression of dynamics and frequency synchronizationin coupled slow and fast dynamical systems,Kajari Gupta and G. Ambika- EurPhy J B89(6), 1-8( 2016)- DOI: 10.1140/epjb/e2016-70068-8

  • Characterization of chaotic attractors under noise: A recurrence network perspective,Rinku Jacob, K. P. Harikrishnan, R. Misra and G. Ambika-Commun Nonlinear SciNumerSimulat, 41, 32-47(2016)

  • Uniform framework for the recurrence-network analysis of chaotic time series, Rinku Jacob, K. P. Harikrishnan, R. Misra and G. Ambika-Phy Rev E 93, 012202 (2016)

  • Effect of data gaps on correlation dimension computed from light curves of variable stars, Sandip V. George, G. Ambika and R. Misra
    -Astrophys Space Sci , 360:5 ( 2015)

  • A random interacting network model for complex networks, Bedartha Goswami, Snehal M. Shekatkar, Aljoscha Rheinwalt, G. Ambika and Juergen Kurths -Scientific Reports , 5:18183,(2015)

  • Divisibility patterns of natural numbers on a complex network, Snehal M. Shekatkar, Chandrasheel Bhagwat and G. Ambika -Scientific Reports , 5:14280 ,(2015)

  • Complex networks with scale-free nature and hierarchical modularity, Snehal M. Shekatkar and G. Ambika -Eur. Phys. J. B. , 88 ,(2015)

  • G. Ambika-Ed Lorenz: Father of the 'Butterfly Effect'- Resonance, 198, March (2015)

  • Novel coupling scheme to control dynamics of coupled discrete systems , Snehal M Shekatkar & G. Ambika - Commun Nonlinear Sci Numer Simulat 25, 50-65 (2015) audio slides
  • Dynamical behaviours in time-delay systems with delayed feedback and digitized coupling , Chiranjit Mitra, G. Ambika and Soumitro Banerjee – Chaos, Solitons and Fractals, 69, 188-200 (2014) )- audio slides

  • Virus Antibody dynamics in primary and secondary Dengue infection, Tanvi P Gujarati and G. Ambika- Journal of Mathematical Biology, 69, 1773-1800(2014)
  • Characterising chaos-hyperchaos transition using correlation dimension- K P Harikrishnan, G Ambika and R Mishra- The European Physical Journal, Special Topics, 222, 839-846 (2013)
  • Can the multifractal spectrum be used as a diagnostic tool. -K P Harikrishnan, R Mishra, G Ambika, Chaotic Modelling and Simulation (CMSIM)(2013)
  • On the transition to hyperchaos and the structure of hyperchaotic attractors- K.P.Harikrishnan, R. Misra and G.Ambika- European Physical Journal B, 86, 394 (2013)
  •  Revisiting the box counting algorithm for the correlation dimension analysis of hyper chaotic time series- K P Harikrishnan, R Mishra, G Ambika- Communications in Nonlinear Science & Numerical Simulation, 17,263(2012)
  •  Amplitude death in complex networks induced by environment- V Resmi, G Ambika , R E Amritkar and G Rangarajan- Phys Rev E  85, 046211(2012)
  •  Evolving networks with bimodal degree distribution, Abhijeet R. Sonawane, A. Bhattacharyay, M. S. Santhanam and G. Ambika- European Physical Journal B,  85,118 (2012)
  •  On interrelations between recurrences and connectivity trends between stock indices- B Goswami, G Ambika, N Marwan and J Kurths- Physica A, 2012
  • Nonlinear time series analysis of the light curves from the black hole system GRS 1915+105- K P Harikrishnan, R Mishra, G Ambika- Research in Astronomy & Astrophysics 11, 71-90(2011)
  • Synchronizing time delay systems using variable delay in coupling- G Ambika and R E Amritkar- Chaos, Solitons & Fractals, 44,1035, 2011
  • General Mechanism for amplitude death in coupled systems- V Resmi, G Ambika and R E Amritkar- Phys Rev E 84, 046212 (2011)
  • Delay or anticipatory synchronization in one way coupled systems using variable delay with reset- G Ambika & R E Amritkar- Pramana( J Phys)  77, 1-14, 2011
  • Parametric characterisation of a chaotic attractor using two scale Cantor measure-  K P Harikrishnan, R Misra, G Ambika, R E Amritkar –Physica D239, 420-427, (2010)
  • Synchronized states in chaotic  systems coupled indirectly through a dynamic environment- V Resmi, G Ambika; R E Amritkar- Phys Rev E 81,046216 (2010)
  • Efficient use of Correlation entropy for analysing time series data- K P Harikrishnan, R Misra & G Ambika- Pramana(J Phys) 72,325 (2009)
  • Antiphase Synchronization in Environmentally coupled Rossler Oscillators -  G.Ambika, Sheekha Verma - arXiv:0812.3753v1 [nlin.CD](2009)
  • Combined use of correlation dimension and entropy as discriminating measures for time series analysis -K P Harikrishnan, R Misra & G Ambika-Communications in Nonlinear Science & Numerical Simulation-14, 3608-3614 (2009)
  • Anticipatory synchronization with variable time delay and reset- G Ambika & R E Amritkar-Phys. Rev E 79, 056206(2009)
  • Computing the Multifractal spectrum from time series: An algorithmic approach- K P Harikrishnan, R Mishra, G Ambika & R E Amritkar- CHAOS 19, 043129(2009)

Full List of publications