Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ammann Tilings in Symplectic Geometry   In this article we study Ammann tilings from the perspective of symplectic
geometry. Ammann tilings are nonperiodic tilings that are related to
quasicrystals with icosahedral symmetry. We associate to each Ammann tiling two
explicitly constructed highly singular symplectic spaces and we show that they
are diffeomorphic but not symplectomorphic. These spaces inherit from the
tiling its very interesting symmetries.

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The categories of this paper are: quant-ph
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The categories of this paper are: solv-int
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The categories of this paper are: nlin
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The categories of this paper are: cmp-lg
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The categories of this paper are: econ
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The categories of this paper are: acc-phys
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The categories of this paper are: q-bio
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: chem-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: eess
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The categories of this paper are: cond-mat
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: q-alg