Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: More on the Terwilliger algebra of Johnson schemes   In [F. Levstein, C. Maldonado, The Terwilliger algebra of the Johnson
schemes, Discrete Math. 307 (2007) 1621--1635], the Terwilliger algebra of the
Johnson scheme $J(n,d)$ was determined when $n\geq 3d$. In this paper, we
determine the Terwilliger algebra ${\mathcal T}$ for the remaining case $2d\leq
n<3d$.

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The categories of this paper are: physics
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The categories of this paper are: quant-ph
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The categories of this paper are: cs
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-alg
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
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The categories of this paper are: atom-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
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The categories of this paper are: astro-ph
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-th