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Mikhail Borovoi
Mikhail Borovoi
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Why central isogeny of reductive group over generealgeneral field F map maximal F split torus onto a maximal split F torus

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yshuai Qin
yshuai Qin
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let $f$ be ana central isogeny of reductive groups over a field F, why $f$ map a maximal F split $F$ torus onto a maximal split F$F$ torus.

let $f$ be an central isogeny of reductive groups over a field F, why $f$ map a maximal F split torus onto a maximal split F torus.

let $f$ be a central isogeny of reductive groups over a field F, why $f$ map a maximal split $F$ torus onto a maximal split $F$ torus.

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yshuai Qin
yshuai Qin
  • 43
  • 4

Why central isogeny of reductive group over genereal field F map maximal F split torus onto a maximal split F torus

let $f$ be an central isogeny of reductive groups over a field F, why $f$ map a maximal F split torus onto a maximal split F torus.