20 search results - page 2 / 4 » Discrete Vector Fields and Fundamental Algebraic Topology |
VIS
2004
IEEE
14 years 9 months ago
2004
IEEE
In this paper, we present an approach for monitoring the positions of vector field singularities in time-dependent datasets. The concept of singularity index is discussed and exte...
FOCM
2002
13 years 8 months ago
2002
Given an ordinary differential equation on a homogeneous manifold, one can construct a "geometric integrator" by determining a compatible ordinary differential equation ...
TIT
2011
13 years 3 months ago
2011
—The fundamental result of linear network coding asserts the existence of optimal codes over acyclic networks when the symbol field is sufficiently large. The restriction to just...
GRAPHICSINTERFACE
2000
13 years 10 months ago
2000
In this paper, we present an efficient way to denoise bivariate data like height fields, color pictures or vector fields, while preserving edges and other features. Mixing surface...
PKC
2011
Springer
12 years 11 months ago
2011
Springer
ded abstract of this work appears in Public Key Cryptography — PKC 2011, ed. R. Gennaro, Springer LNCS 6571 (2011), 1–16. This is the full version. We propose a linearly homom...