Chernousov–Rapinchuk finiteness conjecture for forms of algebraic groups
Chernousov–Rapinchuk finiteness conjecture for forms of algebraic groups
Let be the function field of a smooth affine geometrically integral curve over a field , and let be the set of discrete valuations associated with the closed points of . Let be an absolutely almost simple simply connected algebraic -group, and let be the order of the automorphism group of its root system. Assume that is prime to and that satisfies . A -form of is said to have good reduction at when it has good reduction at the valuation . Chernousov–Rapinchuk finiteness conjecture. The set of -isomorphism classes of -forms of that have good reduction at all is finite. This conjecture extends known finiteness results for spinor groups and special unitary groups to all absolutely almost simple simply connected algebraic groups under the stated assumptions; its general validity remains open.
Sources & referencesView supporting material
Primary source
Srimathy Srinivasan, “A finiteness theorem for special unitary groups of quaternionic skew-hermitian forms with good reduction”, arXiv:1906.01414 (2020).
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