Root operators, root groups and retractions
classification
🧮 math.RT
math.GRmath.MG
keywords
rootoperatorsretractionsadditionbruhat-titsbuildingconnectiondatum
read the original abstract
We prove that the Gaussent--Littelmann root operators on galleries can be expressed purely in terms of retractions of a (Bruhat-Tits) building. In addition we establish a connection to the root datum at infinity.
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