Titlebook: Computational Complexity of Solving Equation Systems; Przemys?aw Broniek Book 2015 The Author(s) 2015 four-element 2-valued algebras.gener

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Reducing , to , over Unary Algebras,etailed description of the polynomial transformation used both ways. We also prove that solving system of equations over arbitrary finite algebra is polynomially equivalent to solving system of equations over specially constructed unary algebra. Finally we show that if P is not equal to NP then the

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Partial Characterizations,trongly-2-generated and strongly-3-valued unary algebras. We also classify 2-valued four-element unary algebras. Finally we present a diagram of subclasses of four-element algebras that have computational complexity dichotomies and describe subclasses that need further work.

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2211-4548 e state of the art in solving equation systems.Includes supp.This volume considers the computational complexity of determining whether a system of equations over a fixed algebra A has a solution. It examines in detail the two problems this leads to: SysTermSat(A) and SysPolSat(A), in which equations

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Die praktische Auslegung von Kettentrieben,olynomially equivalent to solving system of equations over specially constructed unary algebra. Finally we show that if P is not equal to NP then the class of unary algebras for which solving systems of equations is solvable in a polynomial time is not closed under homomorphic images.

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reaching

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Book 2015 detail the two problems this leads to: SysTermSat(A) and SysPolSat(A), in which equations are built out of terms or polynomials, respectively. The book characterizes those algebras for which SysPolSat can be solved in a polynomial time. So far, studies and their outcomes have not covered algebras t

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Enddatum nach Kalendertagen,as Produkt fertiggestellt? Oder: Eine Reise beginnt beispielsweise am 26. 7. 1984 und dauert 42 Tage. Wann endet die Reise? In beiden F?llen ist von einem Anfangsdatum ausgehend das nach einem gewissen Zeitraum liegende Enddatum zu errechnen.

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Absence of Existence and Uniqueness for Forward-backward Parabolic Equations on a Half-line, with a half-range boundary condition at . = 0 and a growth/decay condition as . → + ∞. In situations where the operator . has some negative spectrum, we show that a general existence and uniqueness theorem cannot be obtained just by appropriate choice of the above growth/decay condition.