The Weyl-group bound for components of affine Springer fibers
The Weyl-group bound for components of affine Springer fibers
Let be the Lie algebra of over the local field , let be the affine Springer fiber associated with , and let act on its geometric base change . Let be the Weyl group, and let denote the depth of .
Weyl-group component bound conjecture. For any regular semisimple , the number of -orbits of components of is at most the order of the Weyl group. Moreover, equality holds when
This conjecture concerns the expected Weyl-group-sized control of geometric components of affine Springer fibers and is stated alongside the regular-representation conjecture. The source gives no evidence of resolution.
Sources & referencesView supporting material
Primary source
Cheng-Chiang Tsai, “Components of affine Springer fibers”, arXiv:1609.05176 (2017).
Additional references
3 papers in this index state this conjecture (1998–2016). The statement above is taken from the most recent of them; the others are arXiv:0809.2374, arXiv:math/9812022.
Progress summary
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