Fachbereich Mathematik
FachbereichMathematik
https://orcid.org/0000-0001-7384-742X
Ich arbeite nicht mehr an der Universität Hamburg.
It would make me very happy if someone found a solution to the following problem. (For more info see the related preprint).
A finite set of finite sets is called woven if, for all , at least one of and is an element of .
Let be a non-empty woven set. Does there exist an for which is again woven?
Ich bin Autor des LaTeX-Paketes letterswitharrows, das ich benutze um Formeln für Separation Systems zu setzen.