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Tag Archives: vertex cover
The dual version of Ryser’s conjecture
I talked about our new results related to Ryser’s conjecture in a previous post (also see an even earlier post). The conjecture, and its variants, have some interesting equivalent formulations in terms of edge colourings of graphs. While I was … Continue reading
Extending Ryser’s conjecture
In an earlier post, I talked about Ryser’s conjecture on partite uniform hypergraphs, that has stayed open for all despite a considerable effort by several mathematicians over a period of 50 years. A bit more effort has been spent on … Continue reading
Posted in Combinatorics, Extremal Combinatorics
Tagged hypergraphs, Patrick Morris, postdoc, research, Ryser, Shagnik Das, Tibor Szabo, vertex cover
1 Comment
Ryser’s conjecture
I am on a research visit in Rome, working with Valentina Pepe, and our joint paper on Ryser’s conjecture is on arXiv now. So this seems like the right time to talk about the conjecture and the problems related to … Continue reading