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Mathematics  2013 

Wiener-Hopf operators in higher dimensions: the Widom conjecture for piece-wise smooth domains

DOI: 10.1007/s00020-014-2185-2

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We prove a two-term quasi-classical trace asymptotic formula for the functions of multi-dimensional Wiener-Hopf operators with discontinuous symbols. The discontinuities occur on the surfaces which are assumed to be piece-wise smooth. Such a two-term formula was conjectured by H. Widom in 1982, and proved by A. V Sobolev for smooth surfaces in 2009.


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