• Converse Lagrange theorem orders and supersolvable orders 

  MacHale, Desmond; Manning, Joseph (University of Waterloo, 2016)

  For finite groups, we investigate both converse Lagrange theorem (CLT) orders and supersolvable (SS) orders, and see that the latter form a proper subset of the former. We focus on the difference between these two sets of ...
• Phase tipping: how cyclic ecosystems respond to contemporary climate 

  Alkhayuon, Hassan; Tyson, Rebecca C.; Wieczorek, Sebastian (The Royal Society, 2021-11-06)

  We identify the phase of a cycle as a new critical factor for tipping points (critical transitions) in cyclic systems subject to time-varying external conditions. As an example, we consider how contemporary climate variability ...
• Synchronization of weakly coupled canard oscillators 

  Köksal Ersöz, Elif; Desroches, Mathieu; Krupa, Martin (Elsevier B.V., 2017-03-22)

  Synchronization has been studied extensively in the context of weakly coupled oscillators using the so-called phase response curve (PRC) which measures how a change of the phase of an oscillator is affected by a small ...
• On the elliptic sinh–Gordon equation with integrable boundary conditions 

  Kilian, Martin; Smith, G. (IOP Publishing, 2021-06-28)

  We adapt Sklyanin's K-matrix formalism to the sinh–Gordon equation, and prove that all free boundary constant mean curvature annuli in the unit ball in ${\mathbb{R}}^{3}$ are of finite type.
• One-dimensional weakly nonlinear model equations for Rossby waves 

  Henry, David; Ivanov, Rossen (American Institute of Mathematical Sciences (AIMS), 2014-08)

  In this study we explore several possibilities for modelling weakly nonlinear Rossby waves in fluid of constant depth, which propagate predominantly in one direction. The model equations obtained include the BBM equation, ...

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