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» Algebra and Geometry of Rewriting
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SPAA
2004
ACM
13 years 11 months ago
Lower bounds for graph embeddings and combinatorial preconditioners
Given a general graph G, a fundamental problem is to find a spanning tree H that best approximates G by some measure. Often this measure is some combination of the congestion and...
Gary L. Miller, Peter C. Richter
COMPGEOM
2010
ACM
13 years 11 months ago
Kinetic stable Delaunay graphs
The best known upper bound on the number of topological changes in the Delaunay triangulation of a set of moving points in R2 is (nearly) cubic, even if each point is moving with ...
Pankaj K. Agarwal, Jie Gao, Leonidas J. Guibas, Ha...
NIXDORF
1992
116views Hardware» more  NIXDORF 1992»
13 years 10 months ago
Programmable Active Memories: A Performance Assessment
We present some quantitative performance measurements for the computing power of Programmable Active Memories (PAM), as introduced by [2]. Based on Field Programmable Gate Array (...
Patrice Bertin, Didier Roncin, Jean Vuillemin
SCA
2007
13 years 8 months ago
Liquid simulation on lattice-based tetrahedral meshes
We describe a method for animating incompressible liquids with detailed free surfaces. For each time step, semiLagrangian contouring computes a new fluid boundary (represented as ...
Nuttapong Chentanez, Bryan E. Feldman, Franç...
FOCS
2008
IEEE
13 years 6 months ago
Market Equilibria in Polynomial Time for Fixed Number of Goods or Agents
We consider markets in the classical Arrow-Debreu model. There are n agents and m goods. Each buyer has a concave utility function (of the bundle of goods he/she buys) and an init...
Nikhil R. Devanur, Ravi Kannan