On $k$connectivity and minimum vertex degree in random $s$intersection graphs
Abstract
Random $s$intersection graphs have recently received much interest in a wide range of application areas. Broadly speaking, a random $s$intersection graph is constructed by first assigning each vertex a set of items in some random manner, and then putting an undirected edge between all pairs of vertices that share at least $s$ items (the graph is called a random intersection graph when $s=1$). A special case of particular interest is a uniform random $s$intersection graph, where each vertex independently selects the same number of items uniformly at random from a common item pool. Another important case is a binomial random $s$intersection graph, where each item from a pool is independently assigned to each vertex with the same probability. Both models have found numerous applications thus far including cryptanalysis, and the modeling of recommender systems, secure sensor networks, online social networks, trust networks and smallworld networks (uniform random $s$intersection graphs), as well as clustering analysis, classification, and the design of integrated circuits (binomial random $s$intersection graphs). In this paper, for binomial/uniform random $s$intersection graphs, we present results related to $k$connectivity and minimum vertex degree. Specifically, we derive the asymptotically exact probabilities and zeroone laws for the following three properties: (i) $k$vertexconnectivity, (ii) $k$edgeconnectivity and (iii) the property of minimum vertex degree being at least $k$.
 Publication:

arXiv eprints
 Pub Date:
 September 2014
 DOI:
 10.48550/arXiv.1409.6021
 arXiv:
 arXiv:1409.6021
 Bibcode:
 2014arXiv1409.6021Z
 Keywords:

 Mathematics  Combinatorics;
 Computer Science  Discrete Mathematics;
 Computer Science  Social and Information Networks;
 Mathematics  Probability;
 Physics  Physics and Society;
 05C80;
 60B20;
 G.2.2;
 C.2.1
 EPrint:
 This paper appears in ACMSIAM Meeting on Analytic Algorithmics and Combinatorics (ANALCO) 2015, a conference colocated with ACMSIAM Symposium on Discrete Algorithms (SODA) 2015