414 search results - page 2 / 83 » Geometric Semigroup Theory |
MFCS
2007
Springer
13 years 11 months ago
2007
Springer
Abstract. We examine computational problems on quaternion matrix and rotation semigroups. It is shown that in the ultimate case of quaternion matrices, in which multiplication is s...
ICARCV
2008
IEEE
13 years 11 months ago
2008
IEEE
DCC
2006
IEEE
14 years 4 months ago
2006
IEEE
Abstract. We apply tools coming from singularity theory, as Hamburger-Noether expansions, and from valuation theory, as generating sequences, to explicitly describe order functions...
IJAC
2011
12 years 8 months ago
2011
We summarize the main known results involving subword reversing, a method of semigroup theory for constructing van Kampen diagrams by referring to a preferred direction. In good ca...
FOCS
1994
IEEE
13 years 9 months ago
1994
IEEE
We establish a nonlinear lower bound for halfplane range searching over a group. Specifically, we show that summing up the weights of n (weighted) points within n halfplanes requir...