Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Absolutely Continuous Invariant Measure for Generalized Horseshoe Maps   In this paper, we study the SRB measures of generalized horseshoe map. We
prove that under the conditions of transversality and fatness, the SRB measure
is actually absolutely continuous with respect to the Lebesgue measure.

11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin