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20022011
most citedLinear Confinement and AdS/QCD

1.1k citations

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13 papers · 1 filter

math.CO2010

An Explicit Solution to the Chessboard Pebbling Problem

Qiang Zhen, Charles Knessl

We consider the chessboard pebbling problem analyzed by Chung, Graham, Morrison and Odlyzko [3]. We study the number of reachable configurations and a related double sequenc…

math.CO20102 cited

Toward a Hajnal-Szemeredi theorem for hypergraphs

Hal Kierstead, Dhruv Mubayi

Let be a triple system with maximum degree and let . Then has a proper vertex coloring with colors such that any two color classes differ…

math.CO2010

Almost all triple systems with independent neighborhoods are semi-bipartite

Jozsef Balogh, Dhruv Mubayi

The neighborhood of a pair of vertices in a triple system is the set of vertices such that is an edge. A triple system $\HH$ is semi-bipartite if its vertex set con…

math.CO20096 cited

Almost all cancellative triple systems are tripartite

Jozsef Balogh, Dhruv Mubayi

A triple system is cancellative if no three of its distinct edges satisfy . It is tripartite if it has a vertex partition into three parts such that every edge h…

math.CO20091 cited

Counting substructures I: color critical graphs

Dhruv Mubayi

Let be a graph which contains an edge whose deletion reduces its chromatic number. We prove tight bounds on the number of copies of in a graph with a prescribed number of v…

math.CO2009

Finding bipartite subgraphs efficiently

D. Mubayi, G. Turan

Polynomial algorithms are given for the following two problems: given a graph with vertices and edges, where , find a complete balanced bipartite subgraph…