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Orbits of subgroups of codimension one to four of the Iwahori group in the affine flag variety of $\text{SL}_2$
Published 13 May 2026 in math.AG | (2605.13091v1)
Abstract: We describe how each finite dimensional Schubert cell in the affine flag variety of $\text{SL}_2$ decomposes into orbits for a chain of subgroups of codimension one to four of the Iwahori group.
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