# Travel and Conferences

## 2017

June 26th - 30th: Analysis and Topology in Interaction 2017 - Cortona

Contributed talk - On the (non)-additivity of the Â-genus

June 5th - 9th: Groups, Manifolds and K-Theory - Münster

Contributed talk - Diffeomorphisms of discs: progress and problems

May 1st - 5th: TASK - Topology in Australia and South Korea - Melbourne University

Talk - Diffeomorphisms of discs: recent progress and open problems

April 13th: Sydney Geometry and Topology Seminar - Diffeomorphisms of discs and positive scalar curvature

Hosted by Haotian Wu

April 12th: Australian Category Seminar - Classifying manifolds: a functorial approach

Hosted by John Bourke and Philip Hackney

March 20th: Adelaide Geometry Seminar - Diffeomorphisms of discs, harmonic spinors and positive scalar curvature

Hosted by Mathai Varghese and Hang Wang

January 5th: EPFL Topology Seminar - On the surgery kappa-classes and a theorem of Madsen

Hosted by Professor Kathryn Hess Bellwald
## 2016

September 9th: OAC-manifolds - Cambridge

August 1st - 5th: The international conference in K-Theory WSU 2016 - Sydney

Contributed talk - Diffeomorphisms of discs and real K-theory

July 23rd - 24th: Surgery and Geometry - BIRS

Organizers: Diarmuid Crowley, Jim Davis and Guoliang Yu

July 18th - 22nd: PIMS Summer School on Surgery and the Classification of Manifolds - Calgary

Scientific committee: Diarmuid Crowley, Jim Davis (co-chairs), Qayum Khan and Guoliang Yu

Additional speakers: Ian Hambleton and Don Stanley

Local organizers: Kristine Bauer and Don Stanley

June 26th - July 1st: Topology of Manifolds: a conference in honour of Michael Weiss's 60th birthday - Lisbon

Talk - The Gromoll filtration, Toda brackets and spaces of automorphisms

June 20th - 24th: Developments in Contact and Symplectic Topology - Glasgow

June 13th - 17th: Group Actions Workshop -
The Fields Institute - Toronto

Talk - Free involutions on Kervaire manifolds

May 19th: Copenhagen Topology Seminar - The Gromoll filtration, Toda brackets and positive scalar curvature

May 16th: Scottish Topology Seminar 13 - Glasgow - Obstructions to Stein fillings of almost contact manifolds

April 19th: Bonn University Topology Seminar -
Manifolds which are like the Associative Grassmannian

Hosted by Tibor Macko

February 26th: Southampton Colloquium - Exotic spheres and exotic diffeomorphisms

Hosted by Jan Spakula

February 22nd: OAC-manifolds - Oxford

Talk - The Gromoll filtration, Toda brackets and positive scalar curvature

## 2015

October 21st - 22nd: Colloque 2015 du GDR 2875 - Toulouse

Talk - The rational classification of (n-1)-connected (4n-1)-manifolds (n > 1)

Organised by Marcello Bernardara and Geoffrey Powel

August 17th - 21st: Conference on Topology and Geometry - University of Bonn

August 13th: Melbourne Algebra/Geometry/Topology Seminar - New invariants in G_{2}-topology

Hosted by Christian Haesemeyer

July 27th - July 31st: IGA/AMSI workshop on Geometric Quantisation - University of Adelaide

June 29th - July 10th: PIMS Symposium on the Geometry and Topology of Manifolds - University of British Columbia

Talk - Exotic G_{2}-manifolds

Organised by Boris Botvinnik, Ian Hambleton, Alexei Kovalev and Dale Rolfsen

June 27th - June 28th: Manifolds and Surgery: Current Trends - McMaster University

Talk - Surgery methods in contact topology

Hosted by Ian Hambleton

June 17th: IU Bloomington Topology Seminar - New invariants in G_{2}-topology

Hosted by Jim Davis

May 21st: Rényi Institute of Mathematics - New invariants in G_{2}-topology

Hosted by András Stipsicz

April 14th : LMU München Oberseminar Geometrie - Exotic G_{2}-manifolds

Hosted by Jonathan Bowden

April 8th: Leipzig Algebra Seminar - Witt groups of extended quadratic forms

Hosted by Wolfgang Steimle

February 5th: UCL Symplectic Working Group Seminar - Bordism methods in contact topology in detail

Hosted by Chris Wendl

February 3rd: KCL/UCL Geometry Seminar - Bordism methods in contact topology

Hosted by Jason Lotay
## 2014

October 22nd: Glasgow Geometry and Topology Seminar - Stein fillable manifolds and stably complex homotopy spheres

Hosted by Liam Watson

August 23rd - September 6th : G_{2} manifolds - The Simons Center for Geometry and Physics

Workshop talk - New invariants in G_{2}-topology

Organised by Mark Haskins, Dietmar Salamon and Simon Donaldson

August 3rd - 8th: Analysis, Geometry and Topology of Positive Scalar Curvature Metrics - Oberwolfach

Organised by Bernd Ammann, Bernard Hanke and André Neves

July 14th - 16th: G_{2} Days 2014, UCL - New invariants in G_{2}-topology

Organised by Mark Haskins, Simon Salamon and Jason Lotay

June 9th - 13th : WWU Münster Summer School: Surgery theory and its applications in geometry - Simply connected 7-manifolds and G_{2}-topology

Organised by Fabian Hebestreit and Daniel Kasprowski

June 2nd: LMU München Oberseminar Geometrie - Positive Ricci curvature on highly connected manifolds

Hosted by Thomas Vogel

May 27th: Utrecht Geometry and Analysis Seminar - New invariants in G_{2}-topology

Hosted by Gil Cavalcanti

May 22nd: Karlsruhe Topology Seminar - Positive Ricci curvature on highly connected manifolds

Hosted by Manuel Amann

March 26th - 28th : I visited Johannes Nordström to work together with Sebastian Goette
on G_{2}-manifolds and the computation of their invariants.

February 3rd: Manchester Topology Seminar - The topology of Stein fillable manifolds in higher dimensions

Hosted by Nige Ray

## 2013

December 5th: McMaster Geometry and Topology Seminar - The topology of Stein fillable manifolds in higher dimensions

I visited Ian Hambleton to work on involutions on Kervaire manifolds and smoothing theory.

December 4th: Waterloo Geometry and Topology Seminar - Counting G_{2}-structures and smooth structures on 7-manifolds

Hosted by Spiro Karigianis

November 26th: Bath Geometry Seminar - The topology of Stein fillable manifolds in higher dimensions

I visited Johannes Nordström to work on G_{2}-manifolds and the classification of 2-connected 7-manifolds.

November 20th: Scottish Topology Seminar 3 - Aberdeen - Counting G_{2}-structures and smooth structures on 7-manifolds

November 18th: Edinburgh Topology Seminar - Free involutions on Kervaire manifolds

Hosted by Andrew Ranicki

October 19th: Seminar on Symplectic and Contact Geometry: Bochum-Köln-Münster - The topology of Stein fillable manifolds in higher dimensions

July 3rd: Bielefeld Seminar Geometrie-Topologie - The topology of Stein fillable manifolds in higher dimensions

Hosted by Andriy Haydys

June 20th: Irish Geometry Conference 2013 NUI, Maynooth - A new invariant of G_{2}-structures

April 29th: Copenhagen Topology Seminar - Free involutions on Kervaire manifolds

I visited Wolfgang Steimle to work on concordance theory and plumbings.

February 27th: Cambridge Differential Geometry Seminar - A new invariant of G_{2}-structures

Hosted by Alexei Kovalev

January 21st: Augsburg Oberseminar Differentialgeometrie - A new invariant of G_{2}-structures

I visited Jonathan Bowden in the group of Bernard Hanke to work on
contact topology in high dimensions.

## 2012

November 1st - December 31st: in the Geometry group at Imperial College

I visited Mark Haskins and Johannes Nordström to work on G_{2}-topology and geometry.

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