Under a multigraph it is meant in this paper a general incidence structure with finitely many points and blocks such that there are at least two blocks through any point and also at least two points on any block. Using submultigraphs with saturated points there are defined generating point sets, point bases and point skeletons. The main result is that the complement to any basis (skeleton) is a skeleton (basis).
@article{118625, author = {V\'aclav Havel and Josef Klouda}, title = {Skeletons in multigraphs}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {34}, year = {1993}, pages = {689-696}, zbl = {0815.05020}, mrnumber = {1263797}, language = {en}, url = {http://dml.mathdoc.fr/item/118625} }
Havel, Václav; Klouda, Josef. Skeletons in multigraphs. Commentationes Mathematicae Universitatis Carolinae, Tome 34 (1993) pp. 689-696. http://gdmltest.u-ga.fr/item/118625/
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