Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Flag enumerations of matroid base polytopes   In this paper, we study flag structures of matroid base polytopes. We
describe faces of matroid base polytopes in terms of matroid data, and give
conditions for hyperplane splits of matroid base polytopes. Also, we show how
the cd-index of a polytope can be expressed when a polytope is split by a
hyperplane, and apply these to the cd-index of a matroid base polytope of a
rank 2 matroid.

8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph