Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Covariant differentiation of spinors for a general affine connection   We show that the covariant derivative of a spinor for a general affine
connection, not restricted to be metric compatible, is given by the
Fock-Ivanenko coefficients with the antisymmetric part of the Lorentz
connection. The projective invariance of the spinor connection allows to
introduce gauge fields interacting with spinors. We also derive the relation
between the curvature spinor and the curvature tensor for a general connection.

15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int