Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Fourfold Refined Enumeration of Alternating Sign Trapezoids   Alternating sign trapezoids have recently been introduced as a generalisation
of alternating sign triangles. Fischer established a threefold refined
enumeration of alternating sign trapezoids and provided three statistics on
column strict shifted plane partitions with the same joint distribuition. In
this paper, we are able to add a new pair of statistics to these results. More
precisely, we consider the number of $-1$s on alternating sign trapezoids and
introduce a corresponding statistic on column strict shifted plane partitions
that has the same distribution. More generally, we show that the joint
distributions of the two quadruples of statistics on alternating sign
trapezoids and column strict shifted plane partitions, respectively, coincide.

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The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: econ
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The categories of this paper are: solv-int
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin