Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Time-dependence of the threshold function in the perfect plasticity
  model   This paper discusses the time-dependence of the threshold function in the
perfect plasticity model. In physical terms, it is natural that the threshold
function depends on some unknown variable. Therefore, it is meaningful to
discuss the well-posedness of this function under the weaker assumption of
time-dependence. Time-dependence is also interesting from the viewpoint of the
abstract evolution equation. To prove the existence of a solution to the
perfect plasticity model, the recent abstract theory under the continuous class
with respect to time is used.

0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics