Title
Distributed computation of homology using harmonics.
Abstract
We present a distributed algorithm to compute the first homology of a simplicial complex. Such algorithms are very useful in topological analysis of sensor networks, such as its coverage properties. We employ spanning trees to compute a basis for algebraic 1-cycles, and then use harmonics to efficiently identify the contractible and homologous cycles. The computational complexity of the algorithm is $O(|P|^\omega)$, where $|P|$ is much smaller than the number of edges, and $\omega$ is the complexity order of matrix multiplication. For geometric graphs, we show using simulations that $|P|$ is very close to the first Betti number.
Year
Venue
Field
2013
CoRR
Betti number,Algebraic number,Spanning tree,Topology,Discrete mathematics,Combinatorics,Algebra,Contractible space,Simplicial complex,Distributed algorithm,Matrix multiplication,Mathematics,Computational complexity theory
DocType
Volume
Citations 
Journal
abs/1306.1158
0
PageRank 
References 
Authors
0.34
19
2
Name
Order
Citations
PageRank
Harish Chintakunta1366.05
Hamid Krim252059.69