Reading Seminar on Geometry and Topology

Research Cluster in Low-dimensional Geometry and Topology at University of Luxembourg

Spring Semester sessions of the Academic year 2020-2021

Organizer: Binbin Xu

References

Next Session

Past Session

  • Monday 14 June, 16h00 to 16h50, Venue: Webex
    Abderrahim Mesbah (University of Luxembourg)
    Kleinian group - IX

  • Monday 31 May, 16h00 to 16h50, Venue: Webex
    Abderrahim Mesbah (University of Luxembourg)
    Kleinian group - VIII

  • Monday 17 May, 16h00 to 16h50, Venue: Webex
    David Fisca Camara (University of Luxembourg)
    Kleinian group - VII
    Abstract: I'll talk about laminations on surfaces.

  • Monday 10 May, 16h00 to 16h50, Venue: Webex
    Abderrahim Mesbah (University of Luxembourg)
    Kleinian group - VI
    Abstract: I'll talk about geometrically finite Kleinian groups.

  • Monday 3 May, 16h00 to 16h50, Venue: Webex
    David Fisca Camara (University of Luxembourg)
    Kleinian group - V
    Abstract: I'll talk about geometrically finite Kleinian groups.

  • Monday 19 April, 16h00 to 16h50, Venue: Webex
    Abderrahim Mesbah (University of Luxembourg)
    Kleinian group - IV

  • Monday 12 April, 16h00 to 16h50, Venue: Webex
    Abderrahim Mesbah (University of Luxembourg)
    Kleinian group - III

  • Tuesday 6 April, 16h30 to 17h20, Venue: Webex
    Abderrahim Mesbah (University of Luxembourg)
    Kleinian group - II

  • Tuesday 30 March, 16h00 to 16h50, Venue: Webex
    Abderrahim Mesbah (University of Luxembourg)
    Kleinian group - I
    Abstract: I'll talk aboutthe the notion of limit set of a Kleinian group, non-elementary group and properly discontinuously group action.

  • Tuesday 9 March, 16h00 to 16h50, Venue: Webex
    David Fisac Camara (University of Luxembourg)
    The probabilistic nature of McShane's identity: planar tree coding of simple loops - IX
    Abstract: I will first talk about the cross ratios and its role in the current paper, and then discuss the last section of the paper about the generalization of the result to surfaces with more cusps.

  • Tuesday 2 March, 16h00 to 16h50, Venue: Webex
    Pallavi Panda (University of Strasbourg)
    The probabilistic nature of McShane's identity: planar tree coding of simple loops - VIII

  • Tuesday 23 February, 16h00 to 16h50, Venue: Webex
    Thi Hanh Vo (University of Luxembourg)
    The probabilistic nature of McShane's identity: planar tree coding of simple loops - VII

  • Tuesday 16 February, 16h00 to 16h50, Venue: Webex
    Pallavi Panda (University of Strasbourg)
    The probabilistic nature of McShane's identity: planar tree coding of simple loops - VI

  • Thuesday 9 February, 16h00 to 16h50, Venue: Webex
    Pallavi Panda (University of Strasbourg)
    The probabilistic nature of McShane's identity: planar tree coding of simple loops - V

Fall Semester sessions of the Academic year 2020-2021

Organizer: Binbin Xu

References

Past Sessions

  • Tuesday 8 December, 16h00 to 16h50, Venue: Webex
    Thi Hanh Vo (University of Luxembourg)
    The probabilistic nature of McShane's identity: planar tree coding of simple loops - IV
    Abstract: I'll continue to talk about the error term and random variables on the space of infinite paths.

  • Tuesday 1 December, 16h00 to 16h50, Venue: Webex
    Thi Hanh Vo (University of Luxembourg)
    The probabilistic nature of McShane's identity: planar tree coding of simple loops - III   note
    Abstract: I'll talk about the error term and random variables on the space of infinite paths.

  • Tuesday 24 November, 16h00 to 16h50, Venue: Webex
    Thi Hanh Vo (University of Luxembourg)
    The probabilistic nature of McShane's identity: planar tree coding of simple loops - II   note
    Abstract: I'll talk about the gap function, error terms, and the gap inequality.

  • (Internal Seminar) Tuesday 17 November, 16h00 to 17h00, Venue: Webex
    Pallavi Panda (University of Lille 1)
    Strip deformations of non-compact hyperbolic surfaces
    Abstract: Strip deformations along embedded arcs were used by Danciger-Guéritaud-Kassel for parametrising those infinitesimal deformations of a convex cocompact hyperbolic surface that uniformly lengthen all closed geodesics of the surface. During my thesis, I have generalised this result firstly for some small non-compact surfaces (polygons), and then to general hyperbolic surfaces with spikes (missing points from the boundary) that are decorated with horoballs. I shall talk about some simple examples and state the main theorems. One of the applications is to prove that the arc complex of the non-compact surface is an open ball of dimension one less than that of its deformation space.

  • Tuesday 10 November, 16h00 to 16h50, Venue: Webex
    Pallavi Panda (University of Lille 1)
    The probabilistic nature of McShane's identity: planar tree coding of simple loops - I   note
    Abstract: I'll introduce the aim and the vocabulary of the paper.