منابع مشابه
The Pulsating Cusp
Recent observations at the magnetopause and of the high-latitude ionosphere, suggest that the cusp may be pulsed in nature. Specifically ground-based observations in the dayside auroral oval reveal transient optical features accompanied by bursts of enhanced plasma flow. Also, recent interpretation has shown cusp satellite data to be consistent with a burst of enhanced reconnection. In this pap...
متن کاملUnfolding the Cusp-Cusp Bifurcation of Planar Endomorphisms
Abstract. In many applications of practical interest, for example, in control theory, economics, electronics and neural networks, the dynamics of the system under consideration can be modelled by an endomorphism, which is a discrete smooth map that does not have a uniquely defined inverse; one also speaks simply of a noninvertible map. In contrast to the better known case of a dynamical system ...
متن کاملPulsating Tumour of the Head
Civil Medical Officer. On the 3rd April 1866 a Mahomedan girl, aged 10 years, was brought for treatment to the Tipperah Charitable Hospital. The girl's mother gave the following history: About 4 months previously her daughter had an eruption of the scalp, at the seat of tumour. For its cure a village kobiraj applied a white powder, this caused a circular piece of the scalp to slough away, the b...
متن کاملThe Cusp-hopf bifurcation
The coalescence of a Hopf bifurcation with a codimension-two cusp bifurcation of equilibrium points yields a codimension-three bifurcation with rich dynamic behavior. This paper presents a comprehensive study of this cusp-Hopf bifurcation on the three-dimensional center manifold. It is based on truncated normal form equations, which have a phase-shift symmetry yielding a further reduction to a ...
متن کاملCusp algebras
By a cusp V we shall mean the image of the unit disk D under a bounded injective holomorphic map h into C whose derivative vanishes at exactly one point. The simplest example is the Neil parabola, given by h(ζ) = (ζ, ζ). See [3, 4] for background and theory on the Neil parabola, which is pictured in Figure 1. A generalization of a cusp is a petal. A petal is the image of the unit disk D under a...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 1990
ISSN: 0094-8276
DOI: 10.1029/gl017i008p01069