Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Discrete differential geometry. Consistency as integrability   A new field of discrete differential geometry is presently emerging on the
border between differential and discrete geometry. Whereas classical
differential geometry investigates smooth geometric shapes (such as surfaces),
and discrete geometry studies geometric shapes with finite number of elements
(such as polyhedra), the discrete differential geometry aims at the development
of discrete equivalents of notions and methods of smooth surface theory.
Current interest in this field derives not only from its importance in pure
mathematics but also from its relevance for other fields like computer
graphics. Recent progress in discrete differential geometry has lead, somewhat
unexpectedly, to a better understanding of some fundamental structures lying in
the basis of the classical differential geometry and of the theory of
integrable systems. The goal of this book is to give a systematic presentation
of current achievements in this field.

24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph