: We construct a new family of minimal non-orientable matroids of rank three. Some of these matroids embed in Desarguesian projective planes. This answers a question of Ziegler: fo...
How can it be said that texts are "near" or "distant" from one another? Are different texts by a single author more similar than texts by different authors? To...
This paper answers the following question: Given an \erector set" linkage, a connected set of xed-length links, what is the minimal needed to adjust the edge lengths so that ...
This article is not a research paper, but a little note on the history of combinatorics: we present here a tentative short biography of Henri Delannoy, and a survey of his most no...
In this paper we address issues related to building a large-scale Chinese corpus. We try to answer four questions: (i) how to speed up annotation, (ii) how to maintain high annota...