Gap Opening in the Essential Spectrum of the Elasticity Theory Problem in a Periodic Half-layer


Rayleigh waves are studied in an elastic half-layer with a periodic end and rigidly clamped faces. It is established that the essential spectrum of the corresponding problem of elasticity theory has a band structure, and an example of a waveguide is presented in which a gap opens in the essential spectrum; i.e., an interval arises that contains points of an… (More)

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