University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > On diagonal group actions, trees and continued fractions in positive characteristic

  Browse A-Z

Log in

University Account External (via Google)

🔐 Log In

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

ℹ️ Information

On diagonal group actions, trees and continued fractions in positive characteristic

Download to your calendar using vCal

If you have a question about this talk, please contact INI IT .

NPC - Non-positive curvature group actions and cohomology

If R, k and K are the polynomial ring, fraction field and Laurent series field in one variable over a finite field, we prove that the continued fraction expansions of Hecke sequences of quadratic irrationals in K over k behave in sharp contrast with the zero characteristic case. This uses the ergodic properties of the action of the diagonal subgroup of PGL on the moduli space PGL / PGL and the action of the lattice PGL on the Bruhat-Tits tree of PGL . (Joint work with Uri Shapira)

This talk is part of the Isaac Newton Institute Seminar Series series.

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

SC04, William Gates Building. Zoom link: https://cl-cam-ac-uk.zoom.us/j/4361570789?pwd=Nkl2T3ZLaTZwRm05bzRTOUUxY3Q4QT09&from=addon Lecture Theatre LAB002 East Road, Anglia Ruskin University, Cambridge Hybrid: Seminar room, SPRI & Zoom - email organiser for details

Other talks

title abstract tbc Title to be confirmed Title to be confirmed title and abstract tba (joint seminar with Spectral Geometry in the Clouds) CUSCRS and Renal Medicine Online Causal Inference Seminar
 

© 2006-2025 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity