Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the axiom of planes and the axiom of spheres in the almost Hermitian
  geometry   Criterions for constancy of the holomorphic sectional curvature and the
antiholomorphic sectional curvature are proved for almost Hermitian manifolds.
It is shown, that an almost Hermitian manifold satisfying the axiom of
antiholomorphic planes or the axiom of antiholomorphic spheres is a real or a
complex space form.

24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
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
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an