Large faces in 4-critical planar graphs with minimum degree 4 H. L. AbbottD. R. HareB. Zhou OriginalPaper Pages: 455 - 467
Some remarks on (k−1)-critical subgraphs ofk-critical graphs H. L. AbbottB. Zhou OriginalPaper Pages: 469 - 474
A splitting property of maximal antichains Rudolf AhlswedePéter L. ErdősNiall Graham OriginalPaper Pages: 475 - 480
Minimizing submodular functions over families of sets M. X. GoemansV. S. Ramakrishnan OriginalPaper Pages: 499 - 513
Principal structure of submodular systems and hitchcock-type independent flows Satoru Iwata OriginalPaper Pages: 515 - 532
Exixtence of vertices of local connectivityk in digraphs of large outdegree W. Mader OriginalPaper Pages: 533 - 539
Uniqueness and minimality of large face-width embeddings of graphs Bojan Mohar OriginalPaper Pages: 541 - 556
On the “log rank”-conjecture in communication complexity Ran RazBoris Spieker OriginalPaper Pages: 567 - 588