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MOC
2000
13 years 9 months ago
2000
We report the discovery of a new factor for each of the Fermat numbers F13, F15, F16. These new factors have 27, 33 and 27 decimal digits respectively. Each factor was found by the...
MOC
2000
13 years 9 months ago
2000
The best algorithm known for finding logarithms on an elliptic curve (E) is the (parallelized) Pollard lambda collision search. We show how to apply a Pollard lambda search on a se...
MOC
1998
13 years 9 months ago
1998
Abstract. We consider numerical methods for a “quasi-boundary value” regularization of the backward parabolic problem given by ut + Au = 0 , 0 < t < T u(T ) = f, where A ...
MOC
1998
13 years 9 months ago
1998
This paper reports on new results for the equation m i=1 ak i = n j=1 bk j , i.e., equal sums of like powers. Since the 1967 Lander, Parkin and Selfridge survey paper [4], few othe...
MOC
1998
13 years 9 months ago
1998
In this paper we construct and analyze new non-overlapping domain decomposition preconditioners for the solution of second-order elliptic and parabolic boundary value problems. The...