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JCT
2007
96views more  JCT 2007»
14 years 11 months ago
Co-degree density of hypergraphs
For an r-graph H, let C(H) = minS d(S), where the minimum is taken over all (r − 1)-sets of vertices of H, and d(S) is the number of vertices v such that S ∪ {v} is an edge of...
Dhruv Mubayi, Yi Zhao
ANTS
2008
Springer
83views Algorithms» more  ANTS 2008»
15 years 1 months ago
Enumeration of Totally Real Number Fields of Bounded Root Discriminant
We enumerate all totally real number fields F with root discriminant F 14. There are 1229 such fields, each with degree [F : Q] 9. In this article, we consider the following prob...
John Voight
MOC
1998
109views more  MOC 1998»
14 years 11 months ago
A comparison of regularizations for an ill-posed problem
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 ...
Karen A. Ames, Gordon W. Clark, James F. Epperson,...
IJAC
2007
59views more  IJAC 2007»
14 years 11 months ago
Polynomial-Time Complexity for Instances of the Endomorphism Problem in Free Groups
Abstract. We say the endomorphism problem is solvable for an element W in a free group F if it can be decided effectively whether, given U in F , there is an endomorphism φ of F ...
Laura Ciobanu