9 citations · 17 across the 10 of their papers we have counts for
11 papers
Tamagawa numbers of quasi-split groups over function fields
Ralf Köhl, M. M. Radhika, Ankit Rai
We use Morris' theory of Eisenstein series for reductive groups over global function fields in order to extend Harder's computation of Tamagawa numbers to quasi-split groups.
Representations of Quantum Minimal Surface Algebrasvia Kac-Moody-theory
Jens Hoppe, Ralf Köhl, Robin Lautenbacher
We consider epimorphisms from quantum minimal surface algebras onto involutroy subalgebras of split real simply-laced Kac-Moody algebras and provide examples of affine and finite t…
On Rigidity of -Arithmetic Kac-Moody Groups
Amir Farahmand Parsa, Ralf Köhl
In this article we investigate rigidity properties of -arithmetic Kac-Moody groups in characteristic .
The twisted forms of a semisimple group over an -curve
Rony A. Bitan, Ralf Kohl, Claudia Schoemann
Let be a smooth, projective and geometrically connected curve defined over a finite field . Given a semisimple -group scheme where is…
An extension theorem for embedded Riemannian symmetric spaces of non-compact type and an application to their universal property
Julius Grüning, Ralf Köhl
It is known that a geodesic Y in an abstract reflection space X in the sense of Loos, without any assumption of differential structure, canonically admits an action of a 1-paramete…
Kac-Moody symmetric spaces
Walter Freyn, Tobias Hartnick, Max Horn +1
In the present article we introduce and study a class of topological reflection spaces that we call Kac-Moody symmetric spaces. These generalize Riemannian symmetric spaces of non-…