Research of a cuspoid focusing A3 by a local asymptotic method

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The cuspoid focusing such as A3, formed by parabolic wave front is considered. The methods of definition of parameters of universal deformation of a singularity - method of a global asymptotic (or a saddle point method) - and first approximation of a local asymptotic method are compared. The amplitude and phase structures of a wave field in a vicinity of a singularity are constructed.

Catastrophes, fields, waves, focusing, caustic, uniform asymptotics, wave front, rays, amplitude, phase

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IDR: 148160339

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