Lunchtime seminarsInterwoven LiveSite
https://www.southampton.ac.uk/maths/research/seminars/pure/lunchtime_seminars.pagePure Mathematics lunchtime seminarsPure Lunchtime Seminar - Professor Jelena Grbic (Southampton)https://cdn.southampton.ac.uk/assets/imported/transforms/site/seminar/PageThumbnail/09DC5C16B7284F148797A50F9731A4AD/Pure lunchtime.JPG_SIA_JPG_fit_to_width_XL.jpghttps://www.southampton.ac.uk/maths/news/seminars/2018/03/12-pure-lunchtime-grbic-seminar.pageMon, 12 Mar 2018 00:00:00 +0000
[12:00 - 13:00, 12 March 2018]
An interesting seminar, be sure not to miss it!Pure Lunchtime Seminar - Abigail Linton (Southampton)https://cdn.southampton.ac.uk/assets/imported/transforms/site/seminar/PageThumbnail/09DC5C16B7284F148797A50F9731A4AD/Pure lunchtime.JPG_SIA_JPG_fit_to_width_XL.jpghttps://www.southampton.ac.uk/maths/news/seminars/2018/02/26-pure-lunchtime-linton-seminar.pageMon, 26 Feb 2018 00:00:00 +0000
[12:00 - 13:00, 26 February 2018]
An interesting seminar, be sure not to miss it!Pure Lunchtime Seminar - Dr Tomasz Prytuła (Southampton) seminar cancelled.https://cdn.southampton.ac.uk/assets/imported/transforms/site/seminar/PageThumbnail/09DC5C16B7284F148797A50F9731A4AD/Pure lunchtime.JPG_SIA_JPG_fit_to_width_XL.jpghttps://www.southampton.ac.uk/maths/news/seminars/2018/02/12-pure-lunchtime-prytula-seminar.pageMon, 12 Feb 2018 00:00:00 +0000
[12:00 - 13:00, 12 February 2018]
Sincere apologies to all - this seminar has been cancelled.
Pure Lunchtime Seminar - Penrose Tilings, Professor Peter Kropholler (Southampton)https://cdn.southampton.ac.uk/assets/imported/transforms/site/seminar/PageThumbnail/09DC5C16B7284F148797A50F9731A4AD/Pure lunchtime.JPG_SIA_JPG_fit_to_width_XL.jpghttps://www.southampton.ac.uk/maths/news/seminars/2018/01/29-pure-lunchtime-kropholler-seminar.pageMon, 29 Jan 2018 00:00:00 +0000
[12:00 - 13:00, 29 January 2018]
Penrose tilings are aperiodic tilings that do not fit into the classical
theory of crystallography. In this talk we’ll prove that the Kite and Dart
tiles can be used to tile the Euclidean plane, that the tiling cannot have
any translational symmetry. The tiling can have a point of 5 fold symmetry
but only one such point. The tiling has many wonderful properties involving
the golden ration, Fibonaci numbers, projections from higher dimensional
spaces. Moreover, the tiling makes an attractive poster or something you can
stick on the stair risers to a maths building.
By the end of this talk you will have all the information and resources you need
to plan your own Penrose tiling artworks.
Pure Lunchtime Seminar - Finite quotients of triangle groups, and their applications, Professor Gareth Jones (Southampton)https://cdn.southampton.ac.uk/assets/imported/transforms/site/seminar/PageThumbnail/09DC5C16B7284F148797A50F9731A4AD/Pure lunchtime.JPG_SIA_JPG_fit_to_width_XL.jpghttps://www.southampton.ac.uk/maths/news/seminars/2017/11/06-pure-lunchtime-jones-seminar.pageMon, 06 Nov 2017 00:00:00 +0000
[12:00 - 13:00, 6 November 2017]
I shall describe how a mixture of finite and infinite group theory, namely triangle groups and their finite quotient groups, can provide the solutions to various problems in other areas of mathematics, such as algebraic geometry and the theory of Riemann surfaces (no previous knowledge required!). This includes both classical results and recent joint work with Emilio Pierro on doubly Hurwitz Beauville groups, those groups which minimise the Euler characteristic in a certain class of complex surfaces.Pure Lunchtime Seminar - Sphere Bundles and the classification problem of guage groups, Ingrid Membrillo (Southampton)https://cdn.southampton.ac.uk/assets/imported/transforms/site/seminar/PageThumbnail/09DC5C16B7284F148797A50F9731A4AD/Pure lunchtime.JPG_SIA_JPG_fit_to_width_XL.jpghttps://www.southampton.ac.uk/maths/news/seminars/2017/10/23-pure-lunchtime-membrillo-seminar.pageMon, 23 Oct 2017 00:00:00 +0100
[12:00 - 14:00, 23 October 2017]
Gauge groups appear in the formulation of the so-called gauge theories in physics, such as the Yang-Mills gauge theory. Understanding the topology of the gauge groups and their classifying spaces is crucial in the context of gauge theories and their applications in mathematics. A less rigid approximation to the study of these mapping spaces is the one provided by homotopy theory. In this talk I will discuss the classification problem of gauge groups associated with some exotic spheres and other $S^3$-bundles over $S^4$ from a homotopy theoretical viewpoint.Pure Lunchtime Seminar - An odd primary decomposition of Lie groups and its application, Larry So, Southamptonhttps://cdn.southampton.ac.uk/assets/imported/transforms/site/seminar/PageThumbnail/09DC5C16B7284F148797A50F9731A4AD/Pure lunchtime.JPG_SIA_JPG_fit_to_width_XL.jpghttps://www.southampton.ac.uk/maths/news/seminars/2017/10/09-pure-lunchtime-so-seminar.pageMon, 09 Oct 2017 00:00:00 +0100
[12:00 - 13:00, 9 October 2017]
Given a simple, simply-connected, compact Lie group G, we can modify G and "localize" its homotopy groups in homotopy theory. After localization, if the rank of G is not too big, then G can be decomposed into a product of simpler spaces with good properties. This homotopy decomposition can simplify our analysis of the structure of G, and it plays an important role in my thesis to calculate the order of commutators on certain Lie groups.Pure Seminar - Universal q-gonal tessellations, Doha Kattan (Southampton)https://cdn.southampton.ac.uk/assets/imported/transforms/site/seminar/PageThumbnail/09DC5C16B7284F148797A50F9731A4AD/Pure lunchtime.JPG_SIA_JPG_fit_to_width_XL.jpghttps://www.southampton.ac.uk/maths/news/seminars/2017/06/19-pure-lunchtime-seminar-kattan.pageMon, 19 Jun 2017 00:00:00 +0100
[12:00 - 14:00, 19 June 2017]
We construct the universal q-gonal tessellation. This is a tessellation M whose faces are regular hyperbolic q-sided polygons and has the property that every q-gonal map is a quotient of M by a subgroup of the Hecke group H_q which can be regarded as the (2,q, \infty) triangle group.Pure Lunchtime Seminar - Group Theory in Physics, Andreas Schmitt (Southampton)https://cdn.southampton.ac.uk/assets/imported/transforms/site/seminar/PageThumbnail/09DC5C16B7284F148797A50F9731A4AD/Pure lunchtime.JPG_SIA_JPG_fit_to_width_XL.jpghttps://www.southampton.ac.uk/maths/news/seminars/2017/05/08-pure-lunchtime-seminar.pageMon, 08 May 2017 00:00:00 +0100
[12:00 - 14:00, 8 May 2017]
Abstract: Symmetries are ubiquitous in modern physics. They determine the structure of theories, they predict the existence of particles, they are used as guidance for new theories etc. First I will give a brief overview of applications of group theory, ranging from particle physics to condensed matter physics. Then I will explain one or two concepts in more detail, such as "spontaneous symmetry breaking", which is the underlying concept for a multitude of different phenomena, for instance ferromagnetism and the Higgs mechanism in particle physics. No background in theoretical physics is required to follow the talk.
Pure lunchtime seminar - What is persistent homology? Professor Jacek Brodzki (Southampton)https://cdn.southampton.ac.uk/assets/imported/transforms/site/seminar/PageThumbnail/09DC5C16B7284F148797A50F9731A4AD/Pure lunchtime.JPG_SIA_JPG_fit_to_width_XL.jpghttps://www.southampton.ac.uk/maths/news/seminars/2017/03/06-pure-lunchtime-brodzki.pageMon, 06 Mar 2017 00:00:00 +0000
[12:00 - 14:00, 6 March 2017]
Abstract: Persistent homology has emerged in the past decade or so as a very useful technique for creating topological descriptors of complex shapes. This modification of standard homology to account for a notion of scale has many interesting theoretical properties and is now one of the central tools of the topological data analysis. In my talk I will provide an overview of persistent homology and its main applications. Pure lunchtime seminar - Integral Cohomology of the free loop space of complete flag manifolds - Matthew Burfitt (Southampton)https://cdn.southampton.ac.uk/assets/imported/transforms/site/seminar/PageThumbnail/09DC5C16B7284F148797A50F9731A4AD/Pure lunchtime.JPG_SIA_JPG_fit_to_width_XL.jpghttps://www.southampton.ac.uk/maths/news/seminars/2017/02/27-pure-lunchtime-seminar.pageMon, 27 Feb 2017 00:00:00 +0000
[12:00 - 14:00, 27 February 2017]
A complete flag manifold is the quotient of a Lie group by its maximal torus and is one of the nicer examples of homogeneous spaces. Related objects are studied in different areas of mathematics and mathematical physics. In topology, the study of free loop spaces on manifolds has two folded motivation. First there is a relation between geometrically distinct periodic geodesics on a manifold and their free loop spaces, originally studied by Gromoll and Meyer in their 1969 paper. More recently the study of string topology, in particular the Chas-Sullivan loop product, has been an active area of research with connection to interesting areas in algebraic topology including topological quantum field theory, operads and topological cyclic homology. In this talk I will discuss my work on the cohomology of the free loop space of complete flag manifolds. I will explain my results in the case of the special unitary group SU(n), as this is complicated enough case to illustrate the main ideas but at the same time technically the simplest one.Geometry and Topology of Networks and Datahttps://cdn.southampton.ac.ukhttps://www.southampton.ac.uk/maths/news/seminars/2015/05/11-geometry-and-topology-of-networks-and-data.pageMon, 11 May 2015 00:00:00 +0100
[12:00, 11 May 2015]
Pure Lunchtime SeminarInfinite soluble groups and cohomologyhttps://cdn.southampton.ac.ukhttps://www.southampton.ac.uk/maths/news/seminars/2015/04/27-infinite-soluble-groups-and-cohomology.pageMon, 27 Apr 2015 00:00:00 +0100
[12:00, 27 April 2015]
Pure Lunchtime Seminar Right-angled Coxeter groups as a source of exampleshttps://cdn.southampton.ac.ukhttps://www.southampton.ac.uk/maths/news/seminars/2015/03/16-right-angled-coxeter.pageMon, 16 Mar 2015 00:00:00 +0000
[12:00, 16 March 2015]
Pure Lunchtime Seminar Fibonacci mod n and Petrie polygonshttps://cdn.southampton.ac.ukhttps://www.southampton.ac.uk/maths/news/seminars/2015/03/02-fibonacci-mod-n-and-petrie-polygons.pageMon, 02 Mar 2015 00:00:00 +0000
[12:00, 2 March 2015]
Pure Lunchtime SeminarDold--Puppe complexes and exterior powers on K-theoryhttps://cdn.southampton.ac.ukhttps://www.southampton.ac.uk/maths/news/seminars/2015/02/16-dold-puppe.pageMon, 16 Feb 2015 00:00:00 +0000
[12:00, 16 February 2015]
Pure Lunchtime SeminarA non-LEA Sofic grouphttps://cdn.southampton.ac.ukhttps://www.southampton.ac.uk/maths/news/seminars/2014/11/24_a_non_lea_sofic_group.pageMon, 24 Nov 2014 00:00:00 +0000
[12:00, 24 November 2014]
Lunchtime SeminarA non-LEA Sofic grouphttps://cdn.southampton.ac.ukhttps://www.southampton.ac.uk/maths/news/seminars/2014/11/17_a_non_lea_sofic_group.pageMon, 17 Nov 2014 00:00:00 +0000
[12:00, 17 November 2014]
Lunchtime Seminar Bell's Theorem and the nature of Realityhttps://cdn.southampton.ac.ukhttps://www.southampton.ac.uk/maths/news/seminars/2014/11/03_bells_theorem_and_the_nature_of_reality.pageMon, 03 Nov 2014 00:00:00 +0000
[12:00, 3 November 2014]
Pure lunchtime seminarCayley Maps and Group Extensionshttps://cdn.southampton.ac.ukhttps://www.southampton.ac.uk/maths/news/seminars/2014/09/29_cayley_maps_and_group_extensions.pageMon, 29 Sep 2014 00:00:00 +0100
[12:00, 29 September 2014]
Series Pure lunchtime seminarGroup actions on the de Rham cohomology of hyperelliptic curveshttps://cdn.southampton.ac.ukhttps://www.southampton.ac.uk/maths/news/seminars/2014/05/12_group_actions_on_the_de_rham.pageMon, 12 May 2014 00:00:00 +0100
[13:00, 12 May 2014]
Lunchtime Seminar Sequential categories: towards a higher Morita theoryhttps://cdn.southampton.ac.ukhttps://www.southampton.ac.uk/maths/news/seminars/2014/03/17_sequential_categories_towards_a_higher_morita_theory.pageMon, 17 Mar 2014 00:00:00 +0000
[13:00, 17 March 2014]
Series Lunchtime Seminar