Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tian's invariant of the Grassmann manifold   We prove that Tian's invariant on the complex Grassmann manifold $G_{p,
q}(\mathbb{C})$ is equal to $1/(p+q)$.

3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
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The categories of this paper are: nlin
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The categories of this paper are: hep-lat
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The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
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The categories of this paper are: stat
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ex
1
The categories of this paper are: cs
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The categories of this paper are: quant-ph
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The categories of this paper are: solv-int