Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Further inequalities for the $\mathbb{A}$-numerical radius of certain $2
  \times 2$ operator matrices   Let $\mathbb{A}= \begin{pmatrix} A & 0 \\ 0 & A \\ \end{pmatrix} $ be a
$2\times2$ diagonal operator matrix whose each diagonal entry is a bounded
positive (semidefinite) linear operator $A$ acting on a complex Hilbert space
$\mathcal{H}$. In this paper, we derive several $\mathbb{A}$-numerical radius
inequalities for $2\times 2$ operator matrices whose entries are bounded with
respect to the seminorm induced by the positive operator $A$ on $\mathcal{H}$.
Some applications of our inequalities are also given.

30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics