[Icosadodecahedron]

Previous Bath Geometry Seminars

Autumn 2011

Tue 18 Oct David Calderbank    Extremal Kahler metrics and the ambitoric geometry of convex quadrilaterals I
Tue 25 Oct David Calderbank    Extremal Kahler metrics and the ambitoric geometry of convex quadrilaterals II
Tue 1 Nov Daniel Clarke    Moebius-flat submanifolds I
Tue 8 Nov Yu Qiu    Quantum dilogarithm identities for Dynkin quivers
Tue 15 Nov Jon Woolf (Liverpool)    Stability conditions and tilting
Tue 22 Nov Fran Burstall    Discrete connections in projective geometry
Tue 29 Nov Fran Burstall    Discrete connections in conformal geometry
Tue 6 Dec Daniel Clarke    Moebius-flat submanifolds II
Tue 13 Dec Gregory Sankaran    Moduli of O'Grady's 10-dimensional hyperkahler manifolds

Spring 2011

Tue 8 Feb Chris Williams    Shells, vaults, nets and sails: structural implications of geometry
Tue 15 Feb Johannes Zimmer    A geometric approach to the Hamiltonian boundary value problem: existence, approximation and applications
Tue 22 Feb Daniel Clarke    Transformations of surfaces in R-spaces
Wed 2 Mar Martin Markl (Charles Univ, Prague)    Deformations of algebras and their diagrams
Tue 8 Mar Gunnar Traustason    Multiplication in n dimensions: a farmers approach to a theorem of Hurwitz.
Tue 15 Mar Pawel Borowka    What is an abelian surface?
Tue 29 Mar Lev Birbrair (Ceara, Brazil)    Resonance sequences in Number Theory and in Differential Equations.
Tue 5 Apr Katrin Leschke (Leicester)    Darboux transforms, spectral curve and simple factor dressing
Tue 12 Apr Daniel Clarke    Transformations of discrete surfaces in R-spaces
Tue 19 Apr Qiu Yu    The exchange graphs of acyclic Calabi-Yau categories

Autumn 2010

Tue 12 Oct Alastair King    What is an orbifold?
Wed 27 Oct Amihay Hanany (Imperial)    Counting abelian orbifolds
Tue 2 Nov Alastair King    A conformal Desargues Theorem
Tue 9 Nov Nicolai Vorobjov    Semi-monotone sets
Tue 16 Nov Wayne Rossman (Kobe)    Lie sphere geometry and Omega surfaces I
Thu 18 Nov Kai Behrend (Vancouver)    The derived geometry of the moduli space of sheaves on a Calabi-Yau threefold (COW Seminar)
Thu 18 Nov Anca Mustata (Cork)    A canonical etale lift for local embeddings (COW Seminar)
Tue 23 Nov Wayne Rossman (Kobe)    Lie sphere geometry and Omega surfaces II
Tue 30 Nov Arjun Malhotra (Sheffield)    The positive scalar curvature problem
Tue 7 Dec David Calderbank    Omega surfaces and Guichard surfaces
Tue 14 Dec Robert Marsh (Leeds)    Cluster mutation-periodic quivers and associated Laurent sequences

Spring 2010

Tue 9 Feb Harry Braden (Edinburgh)    Monopoles, Periods and Problems (slides)
Tue 16 Feb Gregory Sankaran    Commutators in orthogonal groups
Tue 23 Feb Fran Burstall    Omega surfaces
Tue 2 Mar Andrew Hone (Kent)    The Somos Sequence Saga
Tue 9 Mar Michael Vaughan-Lee (Oxford)    Some interesting Engel groups
Tue 16 Mar Bernt Jensen    Orbits of the automorphism group of projective representations of Dynkin quivers
Tue 23 Mar Peter Crosby    Right Engel subgroups
Tue 20 Apr Michael Wemyss (Oxford)    Some mutations of quivers in the MMP
Tue 27 Apr David Calderbank    Generalized geometries and representation theory
Tue 6 Jul Wolfgang Schief (UNSW, Sydney)    Euler lines, nine-point circles and integrable discretisation of surfaces

Autumn 2009

Tue 13 Oct Udo Hertrich-Jeromin    Moebius geometry of Euclidean triangles
Tue 20 Oct Fran Burstall    What is .. a moment map
Tue 27 Oct Mario Garcia-Fernandez (Madrid/Imperial)    Coupled equations for Kahler metrics and Yang-Mills connections (slides)
Tue 3 Nov David Calderbank    What is .. special about 6 and 8.
Tue 10 Nov Wolfgang Schief (TU-Berlin)    Discrete Laplace-Darboux sequences, Menelaus' theorem and the pentagram map (slides)
Tue 17 Nov Alastair King    Discrete differential algebra
Tue 24 Nov Yuri Bazlov    Reflection groups and q-reflection groups (slides)
Tue 1 Dec Alastair King    Discrete differential algebra II: integrability and Laplace transforms
Tue 15 Dec Andrew Macpherson    Geometric configurations from representation theory

Spring 2009

Tue 10 Feb Ian Marshall (Loughborough)    Poisson properties of the Schodinger equation (slides)
Tue 17 Feb Lars Schafer (Hannover)    Differential geometric aspects of tt*-geometry
Tue 24 Feb Wolfgang Schief (TU Berlin)    Geometric interpretation of the quaternionic dSKP equation
Wed 25 Feb Bernt Jensen (Jussieu)    Degenerations for derived categories
Tue 3 Mar David Calderbank    Supersymmetry for beginners III: physics and representation theory
Tue 10 Mar David Calderbank    Supersymmetry for beginners IV: supermultiplets for super Poincare algebras
Tue 17 Mar Jonathan Evans (Cambridge)    Supersymmetry and division algebras
Tue 24 Mar David Calderbank    Supersymmetry for beginners V: enhancing supersymmetry
Tue 21 April Alastair King    What is .. a Pasquier model
Tue 28 April Antal Jarai (Bath)    What is .. a Sandpile model
Thu 21 May Phil Boalch (ENS, Paris)    Hyperkahler moduli spaces of irregular connections and Kac-Moody root systems

Autumn 2008

Thu 28 Aug Rafael Herrera (CIMAT, Guanajuato)    Almost quaternionic manifolds and rigidity
Tue 2 Sep Karin Baur (ETH, Zurich)    Modelling parabolic orbits via Delta-filtered modules
Tue 7 Oct Alastair King    What is .. the Freudenthal Magic Square I
Tue 14 Oct Alastair King    What is .. the Freudenthal Magic Square II
Tue 21 Oct Xiu-ping Su    Seaweed Lie algebras and representations of quivers I
Tue 28 Oct Xiu-ping Su    Seaweed Lie algebras and representations of quivers II
Tue 4 Nov Xiu-ping Su    Seaweed Lie algebras and representations of quivers III
Tue 11 Nov Alastair King    What is .. triality
Tue 18 Nov Fran Burstall    Supersymmetry for beginners I
Tue 25 Nov Fran Burstall    Supersymmetry for beginners II
Tue 2 Dec Nathan Broomhead    Dimers, quivers and Calabi-Yau algebras
Tue 9 Dec Kazushi Ueda (Osaka & Oxford)    Dimers, coamoebas and homological mirror symmetry

Spring 2008

Tue 5 Feb Alastair King    Exceptional curves on del Pezzo surfaces
Tue 12 Feb John Power (Comp Sci)    Why 2-categories?
Tue 19 Feb David Calderbank    Kac-Moody parabolics and E-theory I
Tue 26 Feb David Calderbank    Kac-Moody parabolics and E-theory II
Tue 4 Mar Gunnar Traustason    Groups that are pairwise nilpotent
Tue 11 Mar Gregory Sankaran    Moduli of irreducible symplectic manifolds
Tue 15 Apr Raf Bocklandt (Antwerp)    Toric Calabi-Yau algebras and tilings
Tue 22 Apr Ulrich Pinkall (TU-Berlin)    Integrable systems for real time simulation of fluid flow
Tue 29 Apr Chris Hull (Imperial)    Generalised geometry for M-theory
Fri 23 May Dan Waldram (Imperial)    Supergravity, extended generalised geometry and E7
Wed 9 Jul Johannes Engel (Wuppertal)    Non-commutative Hilbert schemes and quiver algebras I
Thu 10 Jul Johannes Engel (Wuppertal)    Non-commutative Hilbert schemes and quiver algebras II

Autumn 2007

Tue 9 Oct Alastair King    What is .. a prehomogeneous vector space
Tue 16 Oct Alastair King    Exceptional prehomogeneous vector spaces
Tue 23 Oct David Calderbank    Projective surfaces, duality and self-dual 4-manifolds
Tue 30 Oct Fran Burstall    Prehomogeneous vector spaces and parabolic subalgebras
Tue 6 Nov Bernd Sing    Model sets and quasicrystals
Tue 13 Nov Gunnar Traustason    Powerful 2-Engel groups and symplectic alternating algebras I
Tue 20 Nov Will Turner (Oxford) Cubist manifolds
Tue 27 Nov Gunnar Traustason    Symplectic alternating algebras II
Tue 4 Dec Fran Burstall    Jordan algebras and symmetric spaces
Tue 11 Dec Dirk Frettloeh (Bielefeld)    The lonely vertex problem

Spring 2007

Tue 6 Feb Fran Burstall    The 38th proof of Bianchi permutability of Darboux transforms
Tue 13 Feb Fran Burstall    Minimal surfaces and twistor fibrations
Tue 20 Feb Daniel Fox (UC Irvine & Oxford)    A Backlund transformation that arises from a twistor fibration
Tue 27 Feb Martin Svensson (Odense)    Harmonic morphisms and twistor lifts
Tue 6 Mar Alastair King    Stability conditions: an introduction
Thu 8 Mar Tom Bridgeland (Sheffield)    Stability conditions and Hall algebras
Tue 13 Mar Andreas Kyprianou    Brownian motion
Tue 20 Mar Nadia Sidorova    Surface measures on paths in an embedded Riemannian manifold
Tue 17 Apr Alastair King    Rational Conformal Field Theory and almost Koszul algebras
Thu 24 May Rob Scheichl    Numerical Approximation of Differential Operators and the De Rham Complex

Autumn 2006

Tue 17 Oct Alastair King    Introduction to dimers
Tue 24 Oct Fran Burstall    Discrete Moutard equations and flat connections I
Tue 31 Oct Fran Burstall    Discrete Moutard equations and flat connections II
Tue 7 Nov Gunnar Traustason    Engel groups
Tue 14 Nov Geoff Smith    The envelope of the Droz-Farny line
Tue 21 Nov Gregory Sankaran    Lattices, volumes and modular forms I
Tue 28 Nov Gregory Sankaran    Lattices, volumes and modular forms II
Tue 5 Dec Fran Burstall    Lines and spheres: conformal geometry via projective geometry

Spring 2006

Tue 7 Feb Barrie Cooper    The Temperley-Lieb category I
Tue 14 Feb Barrie Cooper    The Temperley-Lieb category II
Tue 21 Feb Luis Fernandez    Generalized complex structures I
Tue 28 Feb Luis Fernandez    Generalized complex structures II
Tue 7 Mar Luis Fernandez    Generalized complex structures III
Tue 14 Mar Fran Burstall    More on Generalized complex structures I
Tue 21 Mar Fran Burstall    More on Generalized complex structures II
Tue 28 Mar Fran Burstall    More on Generalized complex structures III
Tue 2 May Roger Moser    Energy concentrations and the Willmore functional
Tue 9 May Geoff Smith    Hagge Circles and Isogonal Conjugation
Tue 15 May Balazs Szendroi (Oxford)    Topological partition functions of local Calabi-Yau threefolds
Wed 28 June Amihay Hanany (MIT)    Tilings, dimers and quiver gauge theories

Autumn 2005

Tue 4 Oct Dima Vassiliev    A teleparallel interpretation of Weyl's equation
Tue 11 Oct Udo Hertrich-Jeromin    On conformally flat hypersurfaces
Tue 18 Oct Fran Burstall    Transformations of Willmore surfaces I
Tue 25 Oct Fran Burstall    Transformations of Willmore surfaces II
Tue 25 Oct Barrie Cooper    Temperley-Lieb and Clifford algebra representations in the Ising model
Tue 1 Nov Marco Lo Giudice    The Kodaira-Spencer map
Tue 8 Nov Luis Fernandez    The dimension of the set of harmonic maps from the 2-sphere to the m-sphere, I
Tue 15 Nov Luis Fernandez    The dimension of the set of harmonic maps from the 2-sphere to the m-sphere, II
Tue 22 Nov Geoff Smith    Triple perspective and porisms
Tue 29 Nov Udo Hertrich-Jeromin    Discrete special isothermic surfaces
Tue 6 Dec Susana Santos    Special isothermic surfaces of type n
Tue 6 Dec Nathan Broomhead    Cohomology of line bundles on toric varieties

Spring 2005

Tue 1 Mar Vedad Pasic    PP-waves with torsion in metric-affine gravity
Tue 8 Mar Martin Kilian    What is ... a Riemann-Hilbert problem
Tue 15 Mar Geoff Smith    Centres of triangles
Tue 19 Apr Barrie Cooper    What is ... the Ising model
Tue 26 Apr Alastair King    What is ... a moduli space I
Tue 3 May Alastair King    What is ... a moduli space II
Tue 10 May Neil Donaldson    Isothermic submanifolds
Tue 17 May Alastair Craw (Stony Brook)    New GIT constructions of toric varieties
Mon 23 May Marco Lo Giudice    What is ... a scheme
Tue 31 May Alastair King    What is ... a variety I
Wed 1 Jun Alastair King    What is ... a variety II

Autumn 2004

Thu 9 Sept Fran Burstall    Isothermic surfaces I
Thu 16 Sept Fran Burstall    Isothermic surfaces II
Wed 22 Sept Fran Burstall    Isothermic surfaces III
Thu 7 Oct Fran Burstall    Isothermic surfaces IV
Tue 12 Oct Barrie Cooper    Abelian categories
Tue 19 Oct Barrie Cooper    Derived categories
Tue 26 Oct Al Kasprzyk    Toric varieties and plausible polytopes
Tue 2 Nov Al Kasprzyk    Line bundles on toric varieties
Tue 9 Nov Barrie Cooper    Triangulated categories
Tue 16 Nov Alastair King    Clifford configurations and Coxeter groups
Tue 23 Nov Tim Hoffmann (Berlin/Munich)    Integrable circle patterns
Tue 30 Nov Fran Burstall    Isothermic surfaces: classical and post-modern
Tue 7 Dec Susana Santos    Special isothermic surfaces
Tue 14 Dec Neil Donaldson    Line congruences and invariant forms

Spring 2004

Tue 20 Jan Wolfgang Schief (UNSW, Sydney)    Integrable discretization of harmonic maps via Backlund transformations
Tue 10 Feb Neil Donaldson    Introduction to integrable systems on quad graphs
Tue 17 Feb Discussion    Integrable systems on quad graphs
Tue 2 Mar Alastair King    Cross ratios and multiratios I
Tue 9 Mar Alastair King    Cross ratios and multiratios II
Tue 16 Mar Discussion    Integrable systems on quad graphs
Tue 23 Mar Discussion    Integrable systems on quad graphs
Tue 20 Apr Martin Kilian    Equivariant harmonic maps and twizzlers
Tue 27 Apr Neil Donaldson    Backlund-type transforms of p-flat maps I
Tue 4 May Neil Donaldson    Backlund-type transforms of p-flat maps II
Tue 11 May Barrie Cooper    McKay matrices, recurrence relations and Koszul duality
Tue 18 May Christoph Bohle (Berlin)    Conformal tori in S^4 and integrable systems
Thu 27 May Vedad Pasic    Quadratic metric-affine gravity - a new solution?

Autumn 2003

Mon 20 Oct Martin Kilian    Mathieu's equation & CMC cylinders
Thu 6 Nov Udo Hertrich-Jeromin    Isothermic surfaces I
Thu 13 Nov Udo Hertrich-Jeromin    Isothermic surfaces II
Thu 20 Nov Udo Hertrich-Jeromin    Isothermic surfaces III
Thu 27 Nov Udo Hertrich-Jeromin    Calapso and Darboux transformations
Thu 4 Dec Udo Hertrich-Jeromin    Discrete isothermic surfaces I
Thu 11 Dec Udo Hertrich-Jeromin    Discrete isothermic surfaces II
Thu 18 Dec Udo Hertrich-Jeromin    Discrete isothermic surfaces III

Spring 2003

Wed 5 Feb Wolfgang Schief (UNSW, Sydney)    On the unification of integrable discrete surfaces
Wed 12 Feb Fran Burstall    Bianchi permutability of Ribaucour transforms via Lie sphere geometry
Wed 19 Feb Alastair King    Pencils and strings: Vafa's mysterious duality
Wed 26 Feb Martin Kilian    Dressing and monodromy
Wed 5 Mar Luis Alvarez-Consul    Anomalies in gauge theory
Wed 19 Mar Fran Burstall    Clifford algebras and conformal geometry
Wed 26 Mar Tim Logvinenko    G-constellations and deformations of the generic orbit
Wed 7 May Alastair King    A-infinity Koszul complex I
Wed 14 May Katrin Wendland (Warwick)    CFT on K3: The Fermat quartic
Wed 21 May Alastair King    A-infinity Koszul complex II

Autumn 2002

Tue 1 Oct Geoff Smith    Triangle theorems via the method of statics
Tue 8 Oct Alastair King    Hermite reciprocity
Thu 17 Oct Andrew Dancer (Oxford)    Einstein metrics and Diophantine equations
Tue 22 Oct Alastair King    Strange duality and resultants
Tue 29 Oct Luis Alvarez-Consul    A new look at moduli of sheaves I
Tue 12 Nov Alastair King    What is the derived category?
Thu 14 Nov Kevin Costello (Cambridge)    Hilbert schemes, Hecke algebras and the Calogero-Sutherland system (COW Seminar)
Thu 14 Nov Yujiro Kawamata (Tokyo)    Representing the equivalence as a Fourier-Mukai functor (COW Seminar)
Tue 19 Nov Martin Kilian    CMC trinoids and the hypergeometric equation
Tue 26 Nov Jonathan Evans (Cambridge)    From PCM to KdV and back
Tue 3 Dec Luis Alvarez-Consul    A new look at moduli of sheaves II
Tue 10 Dec Fran Burstall    Baecklund transformations according to Baecklund I
Thu 12 Dec Fran Burstall    Baecklund transformations according to Baecklund II
Tue 17 Dec David Calderbank (Edinburgh)    Toric self-dual Einstein metrics

Spring 2002

Wed 16 Jan Harry Braden (Edinburgh)    Moduli spaces and many-body integrable systems
Wed 16 Jan Laurent Meersseman (Rennes)    New non-Kaehler complex manifolds
Tue 12 Feb Luis Alvarez-Consul    Dimensional reduction and quiver bundles I
Tue 19 Feb Luis Alvarez-Consul    Dimensional reduction and quiver bundles II
Tue 26 Feb Martin Kilian    Constant mean curvature surfaces I
Tue 5 Mar Martin Kilian    Constant mean curvature surfaces II
Tue 12 Mar Martin Kilian    Constant mean curvature surfaces III
Tue 19 Mar Luis Alvarez-Consul    Reductions of the anti-self-dual Yang-Mills equations to 2 dimensions
Tue 23 Apr Frederic Schuller (Cambridge)    Pseudo-complex manifolds in relativity
Tue 30 Apr Alastair King    A hitch-hiker's guide to particles and strings I: some combinatorics of the Standard Model
Tue 7 May Colin Ingalls (New Brunswick & Cambridge)    Noncommutative algebraic surfaces
Tue 14 May Alastair King    A hitch-hiker's guide to particles and strings II: Dynkin diagrams and Del Pezzo surfaces
Tue 21 May Akira Ishii (Kyoto & Cambridge)    The McKay correspondence and resolutions of a quotient singularity
Tue 28 May Helmut Hofer (Courant Institute)    Holomorphic curves and dynamics in (real) dimension three

Autumn 2001

Thu 4 Oct Fran Burstall    Solitons and symmetry I
Thu 18 Oct Iskandar Taimanov (Novosibirsk)    The inverse scattering method and Willmore spheres
Thu 25 Oct Fran Burstall    Solitons and symmetry II
Thu 25 Oct Aidan Schofield (Bristol)    Mukai equivalence for curves (COW Seminar)
Thu 25 Oct Alessio Corti (Cambridge)    3-fold flips after Shokurov (COW Seminar)
Thu 1 Nov Fran Burstall    Solitons and symmetry III
Thu 15 Nov Alastair King    Solitons and symmetry IV: the KP hierarchy
Thu 22 Nov Alastair King    Solitons and symmetry V: Hirota's method
Thu 29 Nov Alastair King    Solitons and symmetry VI: vertex operators
Thu 13 Dec Alastair King    Solitons and symmetry VII: the bilinear identity
Thu 20 Dec Alastair King    Solitons and symmetry VIII: loose ends

Spring 2001

Thu 8 Feb Wolfgang Schief (UNSW, Sydney)    Introduction to integrable difference geometry I
Thu 15 Feb Wolfgang Schief (UNSW, Sydney)    Introduction to integrable difference geometry II
Thu 22 Feb Wolfgang Schief (UNSW, Sydney)    Introduction to integrable difference geometry III
Thu 8 Mar Fran Burstall    Grassmannians for beginners I
Thu 15 Mar Fran Burstall    Grassmannians for beginners II
Thu 22 Mar Alastair King    Moduli of quiver representations I
Thu 29 Mar Alastair King    Moduli of quiver representations II
Thu 26 Apr Fran Burstall    Unfashionable geometries: Conformal geometry I
Thu 3 May Fran Burstall    Unfashionable geometries: Conformal geometry II
Thu 10 May Fran Burstall    Unfashionable geometries: Lie Sphere geometry I
Thu 17 May Fran Burstall    Unfashionable geometries: Lie Sphere geometry II

Autumn 2000

Tue 17 Oct Dima Vassiliev    An affine field model for the neutrino
Tue 24 Oct Raphael Rouquier (Paris)    Braid groups and monodromy representations
Tue 14 Nov Konstanze Rietsch (Cambridge)    Total positivity and some semialgebraic varieties with cell decompositions
Tue 5 Dec Dan Richardson    Geometry of numbers and the uniformity conjecture
Tue 19 Dec Bruce Westbury (Warwick)    The exceptional series of Lie groups

Spring 2000

Wed 16 Feb Alastair King    A mystery in the homology of free 2-step nilpotent Lie algebras I
Wed 1 Mar Alastair King    A mystery in the homology of free 2-step nilpotent Lie algebras II
Wed 8 Mar Nicolai Vorobjov    Cylindrical decompositions of subanalytic sets I
Wed 15 Mar Rognvaldur Moller (Oxford)    Structure theory of totally disconnected groups via graphs and permutations
Wed 22 Mar Nicolai Vorobjov    Cylindrical decompositions of subanalytic sets II
Wed 29 Mar David Calderbank (Edinburgh)    Curved parabolic geometries and differential invariants
Wed 5 Apr Geoff Smith    Free groups and orderings
Wed 10 May Alastair King    The McKay correspondence
Wed 24 May Edward Fraenkel    Approximating boundaries of class C^1 and C^2, I
Wed 31 May Edward Fraenkel    Approximating boundaries of class C^1 and C^2, II
Wed 7 June Dan Richardson    The Wilkie-Charbonnel theorem of the complement

Current Geometry Seminars

Alastair King     
Mathematical Sciences, University of Bath
Updated 01 Feb 12