Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Method of almost convergence with operator of the form fractional
  order and applications   The purpose of this paper is twofold. First, basic concepts such as Gamma
function, almost convergence, fractional order difference operator and sequence
spaces are given as a survey character. Thus, the current knowledge about those
concepts are presented. Second, we construct the almost convergent spaces with
fractional order difference operator and compute dual spaces which are help us
in the characterization of matrix mappings. After we characterize to the matrix
transformations, we give some examples.

1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph