Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shimura's Vector-Valued Modular Forms, Weight Changing Operators, and
  Laplacians   We investigate the various types of weight raising and weight lowering
operators on quasi-modular forms, or equivalently on Shimura's vector-valued
modular forms involving symmetric power representations. We also present all
the eigenfunctions of the two possible Laplacian operators.

11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
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The categories of this paper are: bayes-an
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex
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The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ