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CORR
2007
Springer
135views Education» more  CORR 2007»
13 years 8 months ago
Detailed Network Measurements Using Sparse Graph Counters: The Theory
— Measuring network flow sizes is important for tasks like accounting/billing, network forensics and security. Per-flow accounting is considered hard because it requires that m...
Yi Lu, Andrea Montanari, Balaji Prabhakar
COMPGEOM
2010
ACM
14 years 1 months ago
Adding one edge to planar graphs makes crossing number hard
A graph is near-planar if it can be obtained from a planar graph by adding an edge. We show that it is NP-hard to compute the crossing number of near-planar graphs. The main idea ...
Sergio Cabello, Bojan Mohar
JGT
2007
53views more  JGT 2007»
13 years 8 months ago
A planar hypohamiltonian graph with 48 vertices
: We present a planar hypohamiltonian graph on 48 vertices, and derive some consequences. © 2007 Wiley Periodicals, Inc. J Graph Theory 55: 338–342, 2007
Carol T. Zamfirescu, Tudor Zamfirescu
CORR
2010
Springer
95views Education» more  CORR 2010»
13 years 8 months ago
Nowhere dense graph classes, stability, and the independence property
A class of graphs is nowhere dense if for every integer r there is a finite upper bound on the size of cliques that occur as (topological) r-minors. We observe that this tameness ...
Hans Adler, Isolde Adler