Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shape theory via affine transformation: Some generalisations   This work sets the statistical affine shape theory in the context of real
normed division algebras. The general densities apply for every field: real,
complex, quaternion, octonion, and for any noncentral and non-isotropic
elliptical distribution; then the separated published works about real and
complex shape distributions can be obtained as corollaries by a suitable
selection of the field parameter and univariate integrals involving the
generator elliptical function. As a particular case, the complex normal affine
density is derived and applied in brain magnetic resonance scans of normal and
schizophrenic patients.

25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex