Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Relative Bott-Samelson varieties   We prove that, defined with respect to versal flags, the product of two
relative Bott-Samelson varieties over the flag bundle is a resolution of
singularities of a relative Richardson variety. This result generalizes Brion's
resolution of singularities of Richardson varieties to the relative setting. It
reflects the phenomenon that the local geometry of a relative Richardson
variety is completely governed by the two intersecting relative Schubert
varieties, studied by Chan-Pflueger. We also prove an analogous theorem in the
case of relative Grassmannian Richardson varieties, thereby furnishing a
resolution of singularities for the Brill-Noether variety with imposed
ramification on twice-marked elliptic curves.

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The categories of this paper are: stat
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-lat
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The categories of this paper are: econ
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The categories of this paper are: q-bio
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: bayes-an