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Edge-connectivity of undirected and directed hypergraphs

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Index<br />

(X, Y )-composition, 25<br />

(k, l)-edge-connected digraph, 16<br />

(k, l)-edge-<strong>connectivity</strong>, 78<br />

(k, l)-partition-connected graph, 15<br />

(k, l)-partition-<strong>connectivity</strong>, 90<br />

(r, 1)-hyperarc, 19<br />

G-even subset, 100<br />

T -odd orientation, 100<br />

ν-hyperedge, 17<br />

c-composition, 25<br />

k-edge-connected digraph, 13, 20<br />

k-edge-connected graph, 13<br />

k-edge-connected hypergraph, 18<br />

k-partition-connected graph, 15<br />

k-partition-<strong>connectivity</strong>, 84<br />

k-rooted-connected digraph, 16<br />

k-rooted-connected dir. hypergraph, 21<br />

p-full partition, 53, 55<br />

arborescence, 13<br />

base polyhedron, 33<br />

circuit matroid, 32<br />

circuit matroid <strong>of</strong> <strong>hypergraphs</strong>, 87<br />

co-disjoint sets, 27<br />

co-partition, 22<br />

complete splitting, 48<br />

composition, 24<br />

connected hypergraph, 17<br />

<strong>connectivity</strong> from S to T , 20<br />

contra-polymatroid, 33<br />

137<br />

covering a set function, 12, 18, 21<br />

critical partition, 57<br />

cross-free family, 27<br />

cross-hyperedge, 22<br />

crossing family, 54<br />

crossing sets, 27<br />

crossing supermodular set function, 34<br />

degree <strong>of</strong> node, 17<br />

degree-specification, 12<br />

<strong>directed</strong> hypergraph, 19<br />

<strong>directed</strong> splitting-<strong>of</strong>f, 71<br />

elementary bipartite graph, 86<br />

entering a set, 17, 19<br />

evaluation oracle, 45<br />

family <strong>of</strong> sets, 22<br />

feasible splitting-<strong>of</strong>f, 57<br />

forest-reducible hypergraph, 85<br />

full truncation, 36<br />

fully submodular, 30<br />

fully supermodular set function, 31<br />

head node, 19<br />

height <strong>of</strong> a composition, 24<br />

hyperarc, 19<br />

hypercircuit, 86<br />

hyperedge, 16<br />

hyperforest, 86<br />

hypergraph, 16<br />

hypergraphic matroid, 87

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