Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Oppenheim type determinantal inequality for the Khatri-Rao product   We first give an Oppenheim type determinantal inequality for the Khatri-Rao
product of two block positive semidefinite matrices, and then we extend our
result to multiple block matrices. As products, the extensions of Oppenheim
type inequalities for the Hadamard product are also included.

14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio