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COMBINATORICS
2006
113views more  COMBINATORICS 2006»
13 years 7 months ago
Tilings of the Sphere with Right Triangles II: The (1, 3, 2), (0, 2, n) Subfamily
Sommerville [8] and Davies [2] classified the spherical triangles that can tile the sphere in an edge-to-edge fashion. Relaxing this condition yields other triangles, which tile t...
Robert J. MacG. Dawson, Blair Doyle
IJWMC
2006
75views more  IJWMC 2006»
13 years 7 months ago
Performance of multichannel wireless ad hoc networks
:ThispaperaddressesthedesignofMediumAccessControl(MAC)protocolsforwireless ad hoc networks that derive benefits from using multiple orthogonal channels for data transmission. Each ...
Asis Nasipuri, Samir Ranjan Das
JACM
2002
83views more  JACM 2002»
13 years 7 months ago
Fast context-free grammar parsing requires fast boolean matrix multiplication
In 1975, Valiant showed that Boolean matrix multiplication can be used for parsing contextfree grammars (CFGs), yielding the asympotically fastest (although not practical) CFG par...
Lillian Lee
FUIN
2006
63views more  FUIN 2006»
13 years 7 months ago
Interpreted Trajectories
Abstract. We introduce generalized trajectories where the individual symbols are interpreted as operations performed on the operand words. The various previously considered traject...
Michael Domaratzki, Grzegorz Rozenberg, Kai Saloma...
IJNSEC
2006
110views more  IJNSEC 2006»
13 years 7 months ago
The Improvement of YSYCT Scheme for Imbalanced Wireless Network
Recently, Yeh et al. proposed an improved password authenticated key exchange scheme (YSYCT scheme) which is secure against undetectable on-line password guessing attacks and prov...
Jung-Wen Lo