Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Jackson-type inequalities and widths of functional classes in the
  Musielak-Orlicz type spaces   In the Musielak-Orlicz type spaces ${\mathcal S}_{\bf M}$, exact Jackson-type
inequalities are obtained in terms of best approximations of functions and the
averaged values of their generalized moduli of smoothness. The values of
Kolmogorov, Bernstein, linear, and projective widths in ${\mathcal S}_{\bf M}$
are found for classes of periodic functions defined by certain conditions on
the averaged values of the generalized moduli of smoothness.

4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg