Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Supersymmetric quantum theory, non-commutative geometry, and
  gravitation. Lecture Notes Les Houches 1995   This is an expanded version of the notes to a course taught by the first
author at the 1995 Les Houches Summer School. Constraints on a tentative
reconciliation of quantum theory and general relativity are reviewed. It is
explained what supersymmetric quantum theory teaches us about differential
topology and geometry. Non-commutative differential topology and geometry are
developed in some detail. As an example, the non-commutative torus is studied.
An introduction to string theory and $M$(atrix) models is provided, and it is
outlined how tools of non-commutative geometry can be used to explore the
geometry of string theory and conformal field theory.

17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc