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JSC
2010
13 years 4 months ago
2010
Let f(X, Y ) ∈ Z[X, Y ] be an irreducible polynomial over Q. We give a Las Vegas absolute irreducibility test based on a property of the Newton polytope of f, or more precisely,...
JSC
2010
13 years 4 months ago
2010
1 We present a solution to the conjugacy decision problem and the conjugacy search problem2 in Garside groups, which is theoretically simpler than the usual one, with no loss of e...
JSC
2010
13 years 4 months ago
2010
We present a new algorithm to compute the integral closure of a reduced Noetherian ring in its total ring of fractions. A modification, applicable in positive characteristic, whe...
JSC
2010
13 years 17 days ago
2010
A Chebyshev knot C(a, b, c, ) is a knot which has a parametrization of the form x(t) = Ta(t); y(t) = Tb(t); z(t) = Tc(t + ), where a, b, c are integers, Tn(t) is the Chebyshev pol...
JSC
2010
13 years 4 months ago
2010
We study the problem of deciding whether two ontologies are inseparable w.r.t. a signature Σ, i.e., whether they have the same consequences in the signature Σ. A special case is...