Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Time-periodic weak solutions to incompressible generalized Newtonian
  fluids   In this study we are interested in the Navier-Stokes-like system for
generalized viscous fluids whose viscosity has a power-structure with exponent
q. We develop an existence theory of periodic in time weak solutions to the
three-dimensional flows subject to a periodic in time force datum whenever
q>6/5, which is the optimal bound for the existence of weak solutions.

15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics