Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Projective completions of Jordan pairs. Part I: The generalized
  projective geometry of a Lie algebra   A geometric realization of the projective completion of the Jordan pair
corresponding to a three-graded Lie algebra is given which permits to develop a
geometric structure theory of the projective completion. This will be used in
Part II of this work to define a manifold structure on the projective
completion (in arbitrary dimension and over quite general base fields and
-rings).

10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph