Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Almgren and topological minimality for the set $Y\times Y$   In this paper we discuss various minimality properties for the orthogonal
product of two 1-dimensional $\Y$ sets, and some related problems. This is
motivated by an attempt to give the classification of singularities for
2-dimensional Almgren-minimal sets in $\R^4$.

29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
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The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
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The categories of this paper are: q-fin
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The categories of this paper are: q-bio
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The categories of this paper are: math-ph
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The categories of this paper are: hep-th
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The categories of this paper are: gr-qc
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The categories of this paper are: econ
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The categories of this paper are: hep-lat
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The categories of this paper are: chem-ph