Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strong Approximation by Marcinkiewicz Means of two-dimensional
  Walsh-Kaczmarz-Fourier Series   In this paper we study the exponential uniform strong approximation of
Marcinkiewicz type of two-dimensional Walsh-Kaczmarz-Fourier series. In
particular, it is proved that the Marcinkiewicz type of two-dimensional
Walsh-Kaczmarz-Fourier series of the continuous function $f$ is uniformly
strong summable to the function $f$ exponentially in the power $1/2$. Moreover,
it is proved that this result is best possible.

22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom