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Straight-line instruction sequence completeness for total calculation on cancellation meadows

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 نشر من قبل Inge Bethke
 تاريخ النشر 2009
  مجال البحث الهندسة المعلوماتية
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A combination of program algebra with the theory of meadows is designed leading to a theory of computation in algebraic structures which use in addition to a zero test and copying instructions the instruction set ${x Leftarrow 0, x Leftarrow 1, xLeftarrow -x, xLeftarrow x^{-1}, xLeftarrow x+y, xLeftarrow xcdot y}$. It is proven that total functions on cancellation meadows can be computed by straight-line programs using at most 5 auxiliary variables. A similar result is obtained for signed meadows.



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