Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Operator inequalities via the triangle inequality   This article improves the triangle inequality for complex numbers, using the
Hermite-Hadamard inequality for convex functions. Then, applications of the
obtained refinement are presented to include some operator inequalities. The
operator applications include numerical radius inequalities and operator mean
inequalities.

36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom