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114
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MOC
1998
81views more  MOC 1998»
15 years 3 months ago
Discrete gauge invariant approximations of a time dependent Ginzburg-Landau model of superconductivity
Abstract. We present here a mathematical analysis of a nonstandard difference method for the numerical solution of the time dependent GinzburgLandau models of superconductivity. Th...
Qiang Du
115
Voted
CRYPTO
2011
Springer
237views Cryptology» more  CRYPTO 2011»
14 years 3 months ago
The Collision Security of Tandem-DM in the Ideal Cipher Model
We prove that Tandem-DM, one of the two “classical” schemes for turning a blockcipher of 2n-bit key into a double block length hash function, has birthday-type collision resist...
Jooyoung Lee, Martijn Stam, John P. Steinberger
TOC
2008
75views more  TOC 2008»
15 years 3 months ago
A Quantum Algorithm for the Hamiltonian NAND Tree
Abstract: We give a quantum algorithm for the binary NAND tree problem in the Hamiltonian oracle model. The algorithm uses a continuous time quantum walk with a running time propor...
Edward Farhi, Jeffrey Goldstone, Sam Gutmann
94
Voted
IPPS
2003
IEEE
15 years 8 months ago
A Characterisation of Optimal Channel Assignments for Wireless Networks Modelled as Cellular and Square Grids
In this paper we first present a uniformity property that characterises optimal channel assignments for networks arranged as cellular or square grids. Then, we present optimal ch...
Madhusudana V. S. Shashanka, Amrita Pati, Anil M. ...
MICCAI
1998
Springer
15 years 7 months ago
Vascular Shape Segmentation and Structure Extraction Using a Shape-Based Region-Growing Model
A new, practical, and efficient approach is proposed for 3D vascular segmentation and bifurcation structure extraction. The method uses a combination of mathematical morphology, re...
Yoshitaka Masutani, Thomas Schiemann, Karl Heinz H...