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- Piotr Kowalczyk, Paul Glendinning, Martin Brown, Gustavo Medrano-Cerda, Houman Dallali, Jonathan Shapiro
- Journal of the Royal Society, Interface
- 2012

We are interested in understanding the mechanisms behind and the character of the sway motion of healthy human subjects during quiet standing. We assume that a human body can be modelled as a single-link inverted pendulum, and the balance is achieved using linear feedback control. Using these assumptions, we derive a switched model which we then… (More)

- J. Stark, P. Glendinning
- 2000

Rotation numbers have played a central role in the study of (unforced) monotone circle maps. In such a case it is possible to obtain a priori bounds of the form » ¡ 1=n µ …1=n †…y n ¡ y 0 † µ » ‡ 1=n, where …1=n †…y n ¡ y 0 † is an estimate of the rotation number obtained from an orbit of length n with initial condition y 0 , and » is the true rotation… (More)

- PAUL GLENDINNING
- 2003

Tennyson's 'Nature, red in tooth and claw' [10] paints a rather more vivid picture of the struggle for life than I encounter on the moors. Moorland deaths seem bloodless; the work of the weather, land and time rather than the result of battles between rival animals. The only regular wars I witness are the squabbles of finches and tits over the peanut… (More)

- Paul Glendinning
- Proceedings. Biological sciences
- 2004

Motion camouflage is a strategy whereby an aggressor moves towards a target while appearing stationary to the target except for the inevitable change in perceived size of the aggressor as it approaches. The strategy has been observed in insects, and mathematical models using discrete time or neural-network control have been used to simulate the behaviour.… (More)

- Hinke M. Osinga, Jan Wiersig, Paul Glendinning, Ulrike Feudel
- I. J. Bifurcation and Chaos
- 2001

It is well-known that the dynamics of the Arnol ′ d circle map is phase-locked in regions of the parameter space called Arnol ′ d tongues. If the map is invertible, the only possible dynamics is either quasiperiodic motion, or phase-locked behavior with a unique attracting periodic orbit. Under the influence of quasiperiodic forcing the dynamics of the map… (More)

- Renato Vitolo, Paul Glendinning, Jason A C Gallas
- Physical review. E, Statistical, nonlinear, and…
- 2011

Infinite cascades of periodicity hubs were predicted and very recently observed experimentally to organize stable oscillations of some dissipative flows. Here we describe the global mechanism underlying the genesis and organization of networks of periodicity hubs in control parameter space of a simple prototypical flow, namely a Rössler's oscillator. We… (More)

Homoclinic bifurcations in autonomous ordinaty differential equations provide useful organizing centres for the analysis of examples. There are four generic types of homoclinic bifurcation, depending on the dominant eigenvalues of the Jacobian matrix of the flow near a stationary point. A family of differential equations is presented which, for suitable… (More)

Homoclinic orbits to bifocus-type stationary points have been studied theoretically by a number of authors, but up until now, only one analytic example has been found. In this paper we summarise and extend the known theory regarding bifocal homoclinic bifurcations and present numerical verification of some of the more interesting theoretical predictions… (More)

- Marc Goodfellow, Paul Glendinning
- Journal of mathematical neuroscience
- 2013

We investigate the dynamic mechanisms underlying intermittent state transitions in a recently proposed neural mass model of epilepsy. A low dimensional model is constructed, which preserves two key features of the neural mass model, namely (i) coupling between oscillators and (ii) heterogeneous proximity of these oscillators to a bifurcation between… (More)

In this paper we show that the border collision normal form of continuous but non-differentiable discrete time maps is affected by a curse of dimensionality: it is impossible to reduce the study of the general case to low dimensions, since in every dimension the bifurcation produces fundamentally different attractors (contrary to the case of smooth… (More)