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Construction and decoding of BCH codes over finite commutative rings
(Linear Algebra and Its Applications, 1999-01-01) [Artigo]
BCH codes over arbitrary finite commutative rings with identity are derived in terms of their locator vector. The derivation is based on the factorization of xs -1 over the unit ring of an appropriate extension of the ...
Exact boundary control for the wave equation in a polyhedral time-dependent domain
(Applied Mathematics Letters, 1999-05-01) [Artigo]
We establish exact boundary controllability for the wave equation in a polyhedral domain where a part of the boundary moves slowly with constant speed in a small interval of time. The control on the moving part of the ...