Sam Hughes - Recent Activities

2025:

(2nd March) Talk on ``Two applications of the homology of Higman--Thompson groups''
(1st - 2nd March) Attended UNYTS, Binghampton NY, USA

(26th February) Talk on ``Finite quotients of infinite groups''.
(25th - 27th February) Attended Humboldt network meeting: Cottbus
(4th February) Talk on ``On finite quotients of discrete groups'' at Paris-Saclay
(4th February) Attended Une matinée de géométrie des groupes, Université Paris-Saclay, France
(3rd - 7th February) Visited Université Paris-Saclay, France

(23rd January) Attended Abel prize symposium, Bonn, Germany

2024:

(4th - 5th December) Attended The mathematics of post quantum cryptography, MPIM Bonn, Germany

(25th November) Talk on ``Kähler manifolds, topological rigidity, and finite quotients of groups'' at MPIM Topology Seminar
(11th - 15th November) Attended Unstable Homotopy Theory, MPIM Bonn, Germany
(5th November) Talk ``On finite quotients of discrete groups'' at BG-UToledo Geometry and Topology Seminar
(4th November) Talk ``On finite quotients of discrete groups'' at Münster Oberseminar Topologie and Oberseminar Modelltheorie und Gruppen

(21st October) Talk on ``Complements of smooth surfaces in simply connected 4-manifolds'' at Glasgow Geometry and Topology Seminar

(25th June) Lightning talk on ``An advert for some results around the Farrell--Jones Conjecture" in Southampton
(24th - 28th June) Attended The interplay of geometric group theory and K-theory, Southampton, UK
(12th - 14th June) Attended Modern methods in infinite groups, Bristol, UK

(22nd May) Talk on ``Finite quotients of Coxeter groups'' in Oxford Junior Topology and Group Theory Seminar
(15th May) Talk on ``\(\ell^2\)-homology and Sigma invariants" in Bonn
(13th - 17th May) Attended Homology growth in topology and group theory, MPIM Bonn, Germany

(18th April) Talk on ``Complements of smooth surfaces in simply-connected 4-manifolds'' in K-OS
(15th April) Talk on ``Embedded surfaces in simply connected 4-manifolds" in Manchester Geometry, Topology and Mathematical Physics Seminar

(18th - 22th March) Attended Topological and homological group theory, Bielefeld, Germany

(28th February) Talk on ``Embedded surfaces in simply connected 4-manifolds" in Oxford Kirby problem list reading group.
(20th February) Talk on ``\(\ell^2\)-homology and BNSR invariants" at Rutgers New Brunswick Topology and Geometry Seminar (online).
(14th February) Talk on ``Finite quotients and fibring with a view towards projective varieties" at Cambridge topology seminar.

(30th January) Talk on ``\(\ell^2\)-homology and BNSR invariants" at Tufts Geometric Group Theory and Topology Seminar.
(23rd January) Talk on ``Finite quotients of Coxeter groups" at Brandeis topology seminar.

2023:

(7th December) Talk on ``Centralisers and classifying spaces for \(\mathrm{Out}(F_N)\)" at Warwick Geometry and Topology Online

(8th November) Talk on ``Finite quotients of Coxeter groups".
(7th - 10th November) Visited Herriot Watt in Edinburgh.

(31st October) Talk on ``Centralisers and classifying spaces for \(\mathrm{Out}(F_N)\)".
(30th October - 1st November) Visit to Bonn.
(27th October) Talk on ``Finite quotients of Coxeter groups".
(27th - 28th October) Attended Groups in Madrid.
(2nd - 6th October) Attended ``Rigidity properties of free-by-cyclic groups" at AIM.

(7th September) Talk on ``The Farrell–Jones Conjecture and group extensions".
(6th - 8th September) Attended BTM2023 in Sheffield.

(31st August) Talk on Dynamics and finite quotients of free-by-cyclic groups.
(30th August - 1st September) Attended Coarse geometry and dynamics in Lyon.
(22nd August) Talk on ``Finite quotients of generic free-by-cyclic groups''.
(21st - 25th August) Attended Groups, Rings, Lie and Hopf Algebras V in Memorial University Harlow.

(20th July) Talk on ``Finite quotients of generic free-by-cyclic groups'' at Topometric Seminar Karlsruhe.
(8th - 29th July) Visit to Karlsruher Institut für Technologie.
(4th July) Lightning talk on ``The virtually cyclic dimension of \(\mathrm{Out}(F_N)\) is finite''.
(3rd - 7th July) Attended Group Actions and Low-Dimensional Topology in El Barco de Ávila, Spain.

(29th June) Talk on ``Finite quotients of generic free-by-cyclic groups''.
(19th - 30th June) Attended Cube Complexes and Combinatorial Geometry at Centre de Recherches Mathématiques in Montréal.
(8th June) Lightning talk on ``Torsion homology growth''.
(5th - 16th June) Attended Groups Around 3-Manifolds at Centre de Recherches Mathématiques in Montréal.
(3rd June) Talk on ``Finite quotients of free-by-cyclic groups'' at GTiNY.
(2nd - 4th June) Attended ``Geometric Topology in New York (GTiNY)'' at Columbia University.

(15th - 20th May) TA for minicourse on \(\ell^2\)-Betti numbers.
(15th - 26th May) Attended Geometry of Subgroups at Centre de Recherches Mathématiques in Montréal.

(24th April - 5th May) Attended Orderable Groups at Centre de Recherches Mathématiques in Montréal.
(3rd - 6th April) Attended Huge Groups at Centre de Recherches Mathématiques in Montréal.

(28th March) Talk on ``CAT(0) groups and spaces'' at Centre de Recherches Mathématiques in Montréal.
(5th - 17th March) Attended Measured Group Theory at Centre de Recherches Mathématiques in Montréal.
(4th March - 1st July) Visit to Centre de Recherches Mathématiques in Montréal.

(13th February) Talk on ``Distinguishing free-by-cyclic groups by their finite quotient groups'' at YGGT XI.
(13th - 17th February) Attended Young Geometric Group Theory XI at Münster.
(7th February) Talk on ``Algebraic fibring and finite quotients'' at Justus-Liebig-Universität Gießen.

(30th January) Talk on ``Algebraic fibring and finite quotients'' at Wrocław.
(29th January - 4th February) Visit to Wrocław.

2022:

(14th November) Talk on ``Profinite rigidity of fibring'' at Southampton Monday Lunchtime Seminar.
(10th November) Talk on ``Torsion homology growth and related topics'' at AATRN Topological Complexity Seminar.
(2nd November) Talk on ``Profinite rigidity of fibring'' at Aberdeen Algebra Seminar.

(3rd October) Talk on ``Fibring groups and profinite rigidity'' at Strasbourg GT3 Seminar.

(26th - 30th September) Attended ``Workshop on Complex Geometry and Geometric Group Theory'' at KIT.
(19th September) Talk on ``Some non-virtually torsion-free lattices in products of trees and right-angled buildings'' at PBRG.
(19th - 22nd September) Attended ``Polygons, Buildings and Related Geometries'' at Ghent.
(14th - 16th September) Attended ``New Trends around Profinite Groups 2022'' at Varese.
(5th September) Talk on ``Regularity of quasi-geodesics characterises hyperbolicity'' at MAGGT.
(5th - 9th September) Attended ``Modern advances in geometric group theory'' at Manchester.

(11th - 22nd July) Attended ``MSRI Metric Geometry and Geometric Analysis Summer School'' at Oxford.

(26th June - 1st July) Attended ``Burger's prime'' at ETH Zürich.
(20th - 24th June) Attended ``Hyperbolic groups and their generalisations" at IHP Paris.
(4th June) Talk on ``Profinite completions and fibring" at CMS Summer Meeting (Memorial University).
(3rd - 6th June) Attended ``CMS Summer Meeting" (Memorial University).
(2nd June) Talk on ``Hierarchical hyperbolicity vs biautomaticity" at Groups, Rings, Lie and Hopf Algebras IV (Memorial University).
(1st - 2nd June) Attended ``Groups, Rings, Lie and Hopf Algebras IV'' (Memorial University).
(1st - 12th June) Visit to Memorial University in St. Johns, Newfoundland.

(24th May) Talk on ``Irreducible lattices fibring over the circle'' at Karlsruhe - Heidelberg RTG seminar.
(16th - 20th May) Attended ``Arithmetic Groups and 3-Manifolds'' at Max Planck Institute for Mathematics Bonn.
(11th May) Talk on ``Irreducible lattices fibring over the circle" at Soko22.
(11th - 12th May) Attended Southampton-Kortrijk Groups and Geometry Meeting 2022.
(9th - 12th May) Visit to Université Catholique de Louvain.

(26th April) Lightning talk on ``Geometry versus biautomaticity".
(25th - 29th April) Attended ``Mapping class groups and \(\mathrm{Out}(F_n)\) at IHP Paris.
(18th - 29th April) Visit to ``Groups Acting on Fractals, Hyperbolicity and Self-similarity Thematic Trimester" at Institut Henri Poincaré.
(14th April) Talk on ``Fibring groups and manifolds over the circle" at BTM35.
(11th - 14th April) Attended ``35th British Topology Meeting" in Durham.

(28th March) Talk on ``Irreducible lattices fibring over the circle" at THMGT22".
(28th March - 1st April) Attended ``Topological and homological methods in group theory 2022" in Bielefeld.
(21st March) Talk on ``Hierarchical hyperbolicity versus biautomaticity" at Southampton Monday Lunchtime Seminar.
(18th March) Talk on ``Irreducible lattices fibring over the circle" at Southampton pure mathematics colloquium.
(15th March) Talk on ``Hierarchical hyperbolicity versus biautomaticity" at Bristol Geometry and Topology Seminar.
(10th March) Talk on ``Irreducible lattices fibring over the circle" at Warwick's Geometry and Topology Online seminar.

(22nd - 25th February) Attended ``workshop on finiteness properties" in Karlsruhe.

(31st January) Talk on ``Irreducible lattices fibring over the circle" at UCLouvain.

2021:

(10th December) Attended GGSE Southampton/Zoom (online).

(9th November) Talk on ``Invariants of quasi-isometries of pairs" at CUNY G&T Seminar.

(22nd October) Attended GGSE UCL/Zoom (online).
(21st October) Talk on ``Fibring lattices in products with Euclidean spaces" at Long-distance seminar on Geometric Group Theory in Mexico.
(11th October) Talk on ``Leary--Minasyan groups and their generalisations" at Oxford Topology Seminar.

(15th - 17th September) Attended Advances in Homotopy Theory (Southampton/online).
(13th - 17th September) Attended New Trends around Profinite Groups (online).
(13th - 14th September) Attended CLAM K-theory workshop (online).

(26th - 30th July) Attended Young Geometric Group Theory X (Newcastle/Online).
(5th - 9th July) Attended Charneyfest 2021.

(30th June) Talk on ``Groups quasi-isometric to right-angled Artin groups" at Beyond Hyperbolicity.
(28th June - 2nd July) Attended Beyond Hyperbolicity.
(22nd June) Lightning talk on ``Groups quasi-isometric to right-angled Artin groups" at CMI-HIMR Dynamics and Geometry Online Summer School.
(21st June - 2nd July) Attended CMI-HIMR Dynamics and Geometry Online Summer School.
(18th June) Talk on ``When does a spin manifold admit a metric of positive scalar curvature?" at TopFlavours21.
(17th - 18th June) Attended TopFlavours21.
(7th - 11th June) Attended GAGTA2021.

(11th May) Talk on ``\(C^\ast\)-algebras and lattices in non-positive curvature" at Great Plains Operator Algebra Symposium.
(10th - 14th May) Attended Great Plains Operator Algebra Symposium.
(10th May) Talk on ``Lattices in non-positive curvature" at Warwick DAGGER Seminar.
(6th May) Talk on ``Lattices in non-positive curvature" at Oxford Junior Geometry and Topology Seminar.

(12th April) Talk on ``The Unstable Gromov-Lawson-Rosenberg Conjecture" at Southampton Topology Seminar.
(6th - 9th April) Presented poster on ``Graphs and complexes of lattices" at BMC-BAMC 2021 Glasgow.
(6th - 9th April) Attended BMC-BAMC 2021 Glasgow

(26th March) Attended GGSE Warwick/Zoom (online).
(4th March) Talk on ``Lattices in non-positive curvature" at ETH Zurich Junior Geometry Seminar.
(3rd March) Talk on ``Isometry groups of \(\mathrm{CAT}(0)\) spaces" at Southampton PGR Seminar (online edition).

(16th February) Talk on ``Lattices in non-positive curvature" at Junior London Algebra Colloquium.

(11th - 15th January) Hosted PGTC 2020 Southampton (online).

2020:

(11th December) Attended GGSE Southampton/Zoom (online).
(7th, 8th, and 10th December) Attended 2nd Southampton-Kyoto Workshop (online).
(7th December) Talk on ``Spotting infinite groups" at Southampton Lunchtime seminar.

(25th November) Talk on ``The unstable Gromov-Lawson-Rosenberg conjecture for certain \(S\)-arithmetic groups" at New Directions in Group Theory and Triangulated Categories.
(8th November) Talk on ``The unstable Gromov-Lawson-Rosenberg conjecture for certain \(S\)-arithmetic groups" at BUGCAT.
(7th, 8th, 14th, and 15th November) Attended Binghampton University Graduate Conference in Algebra and Topology (BUGCAT) (online).

(5th August) Talk on ``The grandest induction" at the Southampton pure PGR seminar (online).

(18th July) Talk on ``On the unstable Gromov-Lawson-Rosenberg conjecture" at GOATS#3 (online).
(6th - 10th July) Attended Groups with Geometrical and Topological Flavours (online).

(12th June) GGSE Oxford/Zoom (online).
(1st - 5th June) Attended Virtual Geometric Group Theory conference at CIRM (online).

(25th - 19th May) Attended Workshop on Polyhedral Products in Geometric Group Theory at the Fields Institute (online).
(20th - 22nd May) Attended Spring Graduate School on Polyhedral Products in Geometric Group Theory (online).

(25th February) Lightning talk on ``Lattices in products of Lie groups and trees" at Young Geometric Group Theory IX.
(23rd - 28th February) Attended Young Geometric Group Theory IX in Saint-Jacut-de-la-mer.

(15th January) Presented poster on ``Cohomology of Fuchsian and non-Euclidean crystallographic groups.
(15th - 17th January) Attended ``Interactions between Geometry, Dynamics and Group Theory" in Bristol.

2019:

(13th December) Attended GGSE Southampton.

(18th November) Talk on ``Cohomology of Fuchsian Groups and Non-Euclidean Crystallographic Groups" at Southampton lunchtime seminar.

(25th October) Talk on ``Trees, lattices and symmetric spaces" at USW Mathematical Sciences Seminar.
(22nd October) Talk on ``Vector bundles and \(K\)-theory" at Southampton Tuesday Evening Seminar.
(16th October) Talk on ``Trees, lattices and symmetric spaces" at the Southampton pure PGR seminar.

(24th September) Presented poster on ``Cohomology of Fuchsian and non-Euclidean crystallographic groups.
(23rd - 27th September) Attended Pansu60.
(18th - 20th September) Presented poster on ``Cohomology of Fuchsian and non-Euclidean crystallographic groups.
(18th - 20th September) Attended Southampton-Bielefeld Geometric Group Theory Meeting.
(10th - 11th September) Attended Southampton-Kyoto Workshop.

(24th July) Talk on ``The cohomology of cocompact Fuchsian groups" at PGTC2019.
(22nd - 26th July) Attended postgraduate group theory conference 2019 (PGTC2019).
(8th - 12th July) Attended Arbeitstangung 2019 on geometry at MPIM Bonn.
(2nd July) Lightning talk on ``Generalisations of Baumslag-Solitar groups" at Young Geometric Group Theory VIII.

(30th June - 5th July) Attended Young Geometric Group Theory VIII in Bilbao.
(26th June) Attended Functor categories for groups meeting at Cambridge.
(6th June) Lightning talk on "Cohomology of Fuchsian groups" at Early Career Topology Researchers 2019.
(6th - 7th June) Attended Early Career Topology Researchers 2019 (ECTR2019) in Sheffield.

(7th May) Talk on ``Fuchsian groups and the geometry of surfaces'' at Bristol Junior Geometry Seminar (BRIJGES).
(1st May) Talk on ``Fuchsian groups and the geometry of surfaces'' at the Southampton pure PGR seminar.

(17th April) Attended British Young Mathematics Colloquium 2019 (BYMC2019).

(1st March) Attended GGSE Warwick.

(27th February) Attended 17th meeting of The Triangle.
(6th February) Talk on ``Non-Hopfian groups and their geometries" at the Southampton pure PGR seminar.

(11th January) Attended Geometric Group Theory at Royal Holloway.

2018:

(17th - 19th December) Attended Geometric Group Theory at Infinity in Bielefeld.

(30th November) Attended GGSE Southampton.
(19th November) Talk on ``The Character Table of a Sharply \(5\)-Transitive Subgroup of \(\mathrm{Alt}(12)\)" at Southampton lunchtime seminar.

(18th - 19th September) Attended the CGTA Inaugural Event at Southampton.

(22nd May) Talk on ``The Character Table of a Sharply \(5\)-Transitive Subgroup of \(\mathrm{Alt}(12)\)" at Gregynog 2018.
(21st - 23rd May) Attended Gregynog 2018.

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