# All Upcoming Events

On Monday at 14:15 in L4, a seminar in
the Geometry and Analysis series:

Dmitri Panov (Kings College London)

Spherical metrics with conical singularities on S^2

On Tuesday at 12:00 in L5, a seminar in
the Quantum Field Theory series:

Derek Harland (Leeds)

The charge density of a monopole and its asymptotic tail

On Tuesday at 15:45 in L4, a seminar in
the Algebraic and Symplectic Geometry series:

Travis Schendler (Imperial College London)

D-modules from the b-function and Hamiltonian flow

**Further information:**Given a hypersurface, the Bernstein-Sato polynomial gives deep information about its singularities. It is defined by a D-module (the algebraic formalism of differential equations) closely related to analytic continuation of the gamma function. On the other hand, given a hypersurface (in a Calabi-Yau variety) one can also consider the Hamiltonian flow by divergence-free vector fields, which also defines a D-module considered by Etingof and myself. I will explain how, in the case of quasihomogeneous hypersurfaces with isolated singularities, the two actually coincide. As a consequence I affirmatively answer a folklore question (to which M. Saito recently found a counterexample in the non-quasihomogeneous case): if c$ is a root of the b-function, is the D-module D f^c / D f^{c+1} nonzero? We also compute this D-module, and for c=-1 its length is one more than the genus (conjecturally in the non-quasihomogenous case), matching an analogous D-module in characteristic p. This is joint work with Bitoun.

On Wednesday at 13:15 in L3, a seminar in
the Strings Junior series:

General Meeting

**Further information:**Meeting to discuss topics and speakers for the Junior String Seminar during the Michaelmas term.

On Thursday, October 15, at 13:00 in Dalitz Institute, DWB, a seminar in
the Particle Phenomenology Forum series:

Isabel Garcia Garcia (University of Oxford)

Natural Scherk-Schwarz theories of the weak scale

On Thursday, October 15, at 16:15 in Sciama Lecture Theatre, a seminar in
the Particles and fields series:

Particle Theory Group (Oxford)

Introductions

**Further information:**http:/

On Friday, October 16, at 14:00 in Dennis Sciama Lecture Theatre, a seminar in
the Theoretical Physics Colloquia series:

Christof Wetterich (Heidelberg)

Big bang or freeze?

On Monday, October 19, at 14:15 in L4, a seminar in
the Geometry and Analysis series:

Melanie Rupflin (Oxford)

Flowing to minimal surfaces with Teichmüller harmonic map flow

On Thursday, October 22, at 13:00 in Dalitz Institute, DWB, a seminar in
the Particle Phenomenology Forum series:

PT probationary students (University of Oxford)

Graduate student presentations

On Thursday, October 22, at 16:15 in Sciama Lecture Theatre, a seminar in
the Particles and fields series:

Daniel Litim (University of Sussex)

From asymptotic freedom to asymptotic safety

On Friday, October 23, at 15:30 in Martin Wood Lecture Theatre, Clarendon Laboratory, a seminar in
the Colloquia series:

Professor Myles Allen (University of Oxford)

How Warm will it get in a World run by Economists? A Physicist's take on Climate Change Policy

On Monday, October 26, at 14:15 in L4, a seminar in
the Geometry and Analysis series:

Stergios Antonakoudis (Cambridge)

The complex geometry of Teichmüller spaces and bounded symmetric domains.

**Further information:**From a complex analytic perspective, both Teichmüller spaces and symmetric spaces can be realised as contractible bounded domains, that have several features in common but also exhibit many differences. In this talk we will study isometric maps between these two important classes of bounded domains equipped with their intrinsic Kobayashi metric.

On Tuesday, October 27, at 12:00 in L5, a seminar in
the Quantum Field Theory series:

Bernd Schroers (Heriot Watt)

Spin and time evolution in geometric models of matter

On Tuesday, October 27, at 15:45 in L4, a seminar in
the Algebraic and Symplectic Geometry series:

Sara Tukachinsky (Hebrew University of Jerusalem)

TBA

On Wednesday, October 28, at 13:15 in L6, a seminar in
the Strings Junior series:

Fedor Levkovich-Maslyuk (King's College)

**Further information:**Fedor will be speaking about his recent papers http:/

On Thursday, October 29, at 16:15 in Sciama Lecture Theatre, a seminar in
the Particles and fields series:

Paul McFadden (Imperial College, London)

Soft limits in holographic cosmology

On Friday, October 30, at 14:00 in Dennis Sciama Lecture Theatre, a seminar in
the Theoretical Physics Colloquia series:

Georgi Dvali (Ludwig-Maximilians-University)

Black hole's quantum face

On Friday, October 30, at 15:30 in Martin Wood Lecture Theatre, Clarendon Laboratory, a seminar in
the Colloquia series:

Professor Paul Ginsparg (Cornell University)

At a Physics/InfoSci Intersection

On Monday, November 2, at 14:15 in L4, a seminar in
the Geometry and Analysis series:

Amir Aazami (IPMU)

On the principal Ricci curvatures of a Riemannian 3-manifold

**Further information:**>>>Milnor has shown that three-dimensional Lie groups with left invariant >>>Riemannian metrics furnish examples of 3-manifolds with principal Ricci >>>curvatures of fixed signature --- except for the signatures (-,+,+), >>>(0,+,-), and (0,+,+). We examine these three cases on a Riemannian >>>3-manifold, and prove global obstructions in certain cases. For example, >>>if the manifold is closed, then the signature (-,+,+) is not globally >>>possible if it is of the form -µ,f,f, with µ a positive constant and f a >>>smooth function that never takes the values 0,-µ (this generalizes a >>>result by Yamato '91). Similar obstructions for the other cases will >>>also be discussed. Our methods of proof rely upon frame techniques >>>inspired by the Newman-Penrose formalism. Thus, we will close by turning >>>our attention to four dimensions and Lorentzian geometry, to uncover a >>>relation between null vector fields and exact symplectic forms, with >>>relations to Weinstein structures.

On Thursday, November 5, at 16:15 in Sciama Lecture Theatre, a seminar in
the Particles and fields series:

Emilian Dudas (Ecole Polytechnique, Paris)

Inflation, supersymmetry breaking and moduli stabilization

On Friday, November 6, at 15:30 in Martin Wood Lecture Theatre, Clarendon Laboratory, a seminar in
the Colloquia series:

Dr Trevor Cross FInstP (Group Chief Technology Officer, e2v)

60 Years of Imaging Technology

On Monday, November 9, at 14:15 in L4, a seminar in
the Geometry and Analysis series:

Jorgen Rennemo (Oxford)

tba

On Tuesday, November 10, at 12:00 in L5, a seminar in
the Quantum Field Theory series:

Tomasz Lukowski

to be announced

On Thursday, November 12, at 13:00 in Dalitz Institute, DWB, a seminar in
the Particle Phenomenology Forum series:

Juan Rojo (University of Oxford)

TBD

On Thursday, November 12, at 16:15 in Sciama Lecture Theatre, a seminar in
the Particles and fields series:

Malcolm Fairbairn (King's College London)

When will dark matter detectors become neutrino detectors?

On Friday, November 13, at 14:00 in Dennis Sciama Lecture Theatre, a seminar in
the Theoretical Physics Colloquia series:

Hans Peter Nilles (Bonn)

Unification of Fundamental Interactions

On Monday, November 16, at 14:15 in L6, a seminar in
the Geometry and Analysis series:

Marta Mazzocco (Loughborough)

tba

On Thursday, November 19, at 13:00 in Dalitz Institute, DWB, a seminar in
the Particle Phenomenology Forum series:

Emmanuel Stamou (Weizmann Institute of Science)

TBD

**Further information:**http:/

On Thursday, November 19, at 16:15 in Sciama Lecture Theatre, a seminar in
the Particles and fields series:

Michael Spannowsky (IPPP Durham)

Augmenting the diboson excess for Run 2

On Friday, November 20, at 15:30 in Martin Wood Lecture Theatre, Clarendon Laboratory, a seminar in
the Colloquia series:

Professor Tom Ray (Trinity College Dublin)

The Einstein Lens and a Tale of Two Eclipses

On Friday, November 20, at 16:00 in L1, a seminar in
the Math Colloquium series:

Felix Otto (Max-Plank-Institute)

tba

On Monday, November 23, at 14:15 in L4, a seminar in
the Geometry and Analysis series:

Peter Gothen (Oporto)

tba

On Thursday, November 26, at 13:00 in Dalitz Institute, DWB, a seminar in
the Particle Phenomenology Forum series:

Felix Kahlhoefer (DESY)

TBD

On Thursday, November 26, at 16:15 in Sciama Lecture Theatre, a seminar in
the Particles and fields series:

Niels Obers (NBI Copenhagen)

The return of Newton-Cartan space-time

On Friday, November 27, at 14:00 in Dennis Sciama Lecture Theatre, a seminar in
the Theoretical Physics Colloquia series:

Julien Tailleur (Paris Diderot)

tba

On Friday, November 27, at 15:30 in Martin Wood Lecture Theatre, Clarendon Laboratory, a seminar in
the Colloquia series:

Dr Samaya Nissanke (Radboud University, The Netherlands)

Black Hole Births in real time: seeing and listening to the transient Universe

On Friday, November 27, at 16:00 in L1, a seminar in
the Math Colloquium series:

Sergiu Klainerman (Princeton University, NJ)

tbc

**Further information:**tbc

On Monday, November 30, at 14:15 in L4, a seminar in
the Geometry and Analysis series:

Daniel Halpern-Leistner (Columbia)

tba

On Tuesday, December 1, at 12:00 in L5, a seminar in
the Quantum Field Theory series:

Ivette Fuentes ((ETH) Zurich)

to be announced

On Thursday, December 3, at 13:00 in Dalitz Institute, DWB, a seminar in
the Particle Phenomenology Forum series:

Daniel Egana-Ugrinovic (Rutgers)

The low energy theories of the Higgs sector

On Thursday, December 3, at 16:15 in Sciama Lecture Theatre, a seminar in
the Particles and fields series:

Stephen West (Royal Holloway)

Big Bang synthesis of nuclear dark matter

**Further information:**arXiv:1411.3739

On Friday, January 22, at 14:00 in Dennis Sciama Lecture Theatre, a seminar in
the Theoretical Physics Colloquia series:

Christophe Pichon (IAP)

tba

On Friday, January 29, at 16:00 in L1, a seminar in
the Math Colloquium series:

Mark Newman (Univ. of Michigan)

tba

On Friday, February 12, at 16:00 in L1, a seminar in
the Math Colloquium series:

Isabelle Gallagher (University of Paris-Diderot)

tbc

On Friday, June 3, at 16:00 in L1, a seminar in
the Math Colloquium series:

Bernd Sturmfels (UC Berkeley)

tba

On Friday, June 17, at 16:00 in L1, a seminar in
the Math Colloquium series:

David Vogan (MIT)

tbc