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» Isomorphisms of Algebraic Number Fields
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STOC
2007
ACM
83views Algorithms» more  STOC 2007»
14 years 7 months ago
Lattices that admit logarithmic worst-case to average-case connection factors
We demonstrate an average-case problem that is as hard as finding (n)-approximate shortest vectors in certain n-dimensional lattices in the worst case, where (n) = O( log n). The...
Chris Peikert, Alon Rosen
SIAMCOMP
2010
100views more  SIAMCOMP 2010»
13 years 5 months ago
Algorithmic Enumeration of Ideal Classes for Quaternion Orders
We provide algorithms to count and enumerate representatives of the (right) ideal classes of an Eichler order in a quaternion algebra defined over a number field. We analyze the ...
Markus Kirschmer, John Voight
MOC
2002
87views more  MOC 2002»
13 years 7 months ago
On the resolution of relative Thue equations
An efficient algorithm is given for the resolution of relative Thue equations. The essential improvement is the application of an appropriate version of Wildanger's enumeratio...
István Gaál, Michael Pohst

Publication
400views
15 years 2 months ago
Enforcing Integrability by Error Correction using L1-minimization
Surface reconstruction from gradient fields is an important final step in several applications involving gradient manipulations and estimation. Typically, the resulting gradient ...
Dikpal Reddy, Amit K. Agrawal, Rama Chellappa
CGF
2006
183views more  CGF 2006»
13 years 7 months ago
Cross Dissolve Without Cross Fade: Preserving Contrast, Color and Salience in Image Compositing
Linear interpolation is the standard image blending method used in image compositing. By averaging in the dynamic range, it reduces contrast and visibly degrades the quality of co...
Mark Grundland, Rahul Vohra, Gareth P. Williams, N...