• Border-collision bifurcations in a driven time-delay system 

  Ryan, Pierce; Keane, Andrew; Amann, Andreas (AIP Publishing, 2020-02-07)

  We show that a simple piecewise-linear system with time delay and periodic forcing gives rise to a rich bifurcation structure of torus bifurcations and Arnold tongues, as well as multistability across a significant portion ...
• Interplay between competitive and cooperative interactions in a three-player pathogen system 

  Pinotti, Francesco; Ghanbarnejad, Fakhteh; Hövel, Philipp; Poletto, Chiara (Royal Society, 2020-01-22)

  In ecological systems, heterogeneous interactions between pathogens take place simultaneously. This occurs, for instance, when two pathogens cooperate, while at the same time, multiple strains of these pathogens co-circulate ...
• Robustness of chimera states in nonlocally coupled networks of nonidentical logistic maps 

  Malchow, Ann-Kathleen; Omelchenko, Iryna; Schöll, Eckehard; Hövel, Philipp (American Physical Society, 2018-07-30)

  We investigate the dynamics of nonlocally coupled time-discrete maps with emphasis on the occurrence and robustness of chimera states. These peculiar, hybrid states are characterized by a coexistence of coherent and ...
• Characterizing complex networks using entropy-degree diagrams: unveiling changes in functional brain connectivity induced by Ayahuasca 

  Viol, Aline; Palhano-Fontes, Fernanda; Onias, Heloisa; de Araujo, Draulio B.; Hövel, Philipp; Viswanathan, Gandhi M. (MDPI, 2019-01-30)

  With the aim of further advancing the understanding of the human brain’s functional connectivity, we propose a network metric which we term the geodesic entropy. This metric quantifies the Shannon entropy of the distance ...
• Image based Particle Shape Analysis Toolbox (IPSAT) 

  Tunwal, Mohit; Mulchrone, Kieran F.; Meere, Patrick A. (Elsevier, 2019-11-26)

  Shape analysis can provide vital information regarding the origin, transport and deposition history of grains. Particle shape measurement has been an active area of research for sedimentologists since the 20th century. ...

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