Autowave reverberator
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In the theory of autowave phenomena an autowave reverberator is an autowave vortex in a two-dimensional active medium.[note 1]
A reverberator appears a result of a rupture in the front of a plane autowave. Such a rupture may occur, for example, via collision of the front with a nonexcitable obstacle. In this case, depending on the conditions, either of two phenomena may arise: a spiral wave, which rotates around the obstacle, or an autowave reverberator which rotates with its tip free.