# All Upcoming Events

On Thursday, May 28, at 13:00 in Dalitz Institute, DWB, a seminar in
the Particle Phenomenology Forum series:

Thomas Blake & Ulrich Haisch (University of Warwick & University of Oxford)

Anomalous B decays (TBC)

On Thursday, May 28, at 16:15 in Sciama Lecture Theatre, a seminar in
the Particles and fields series:

Pat Scott (Imperial College)

Asymmetric dark matter in the Sun

**Further information:**arXiv:1411.6626

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

Marc Mezard (ENS, Paris)

Statistical Physics and Information Theory: New Frontiers

On Friday at 16:15 in Martin Wood Lecture Theatre, Clarendon Laboratory, a seminar in
the Colloquia series:

Professor Cary Forest (Madison Physics Department, University of Wisconsin)

Chasing Fast Dynamos in the Plasma Lab

On Monday at 12:00 in L5, a seminar in
the String Theory series:

Matthias Wilhelm (Humboldt Universität zu Berlin)

TBA

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

Henry Schenck (Illinois at Urbana-Champaign)

Geometry of generalized barycentric coordinates

On Tuesday at 12:00 in L4, a seminar in
the Quantum Field Theory series:

Sylvie Paycha (Potsdam)

Renormalisation and the Euler-Maclaurin formula on cones

**Further information:**[based on joint work with Li Guo and Bin Zhang] We apply to the study of exponential sums on lattice points in convex rational polyhedral cones, the generalised algebraic approach of Connes and Kreimer to perturbative quantum field theory. For this purpose we equip the space of cones with a connected coalgebra structure. The algebraic Birkhoff factorisation of Connes and Kreimer adapted and generalised to this context then gives rise to a convolution factorisation of exponential sums on lattice points in cones. We show that this factorisation coincides with the classical Euler-Maclaurin formula generalised to convex rational polyhedral cones by Berline and Vergne by means of an interpolating holomorphic function. We define renormalised conical zeta values at non-positive integers as the Taylor coefficients at zero of the interpolating holomorphic function. When restricted to Chen cones, this yields yet another way to renormalise multiple zeta values at non-positive integers.

On Wednesday at 12:00 in L5, a seminar in
the Strings Junior series:

Omar Kidwai (University of Oxford)

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

Seyda Ipek (University of Washington)

TBC

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

Mustafa Amin (Institute of Astronomy, Cambridge)

TBA

On Friday, June 5, at 16:15 in Martin Wood Lecture Theatre, Clarendon Laboratory, a seminar in
the Colloquia series:

Professor Stephen Briggs (European Space Agency, Harwell Oxford)

Climate Observations from Space

On Monday, June 8, at 12:00 in L5, a seminar in
the String Theory series:

Peter West (Kings College, London)

TBA

On Tuesday, June 9, at 13:30 in L4, a seminar in
the Algebraic and Symplectic Geometry series:

Valeri Alexeev (University of Georgia)

(COW SEMINAR) Uniformizing the moduli space of abelian 6-folds

**Further information:**By classical results of Mumford and Donagi, Mori-Mukai, Verra, the moduli spaces A_g of principally polarized abelian varieties of dimension g are unirational for g≤5 and are of general type for g≥7. Answering a conjecture of Kanev, we provide a uniformization of A6 by a Hurwitz space parameterizing certain curve covers. Using this uniformization, we study the geometry of A6 and make advances towards determining its birational type. This is a joint work with Donagi-Farkas-Izadi-Ortega.

On Tuesday, June 9, at 14:00 in DWB, Fisher Room, a seminar in
the Holography series:

Ayan Mukhopadhyay (U. Crete)

Semi-Holography for QCD

On Tuesday, June 9, at 15:15 in L4, a seminar in
the Geometry and Analysis series:

M S Narasimhan (TIFR Bangalore)

(COW seminar) The derived category of moduli spaces of vector bundles on curves

**Further information:**Let X be a smooth projective curve (of genus greater than or equal to 2) over C and M the moduli space of vector bundles over X, of rank 2 and with fixed determinant of degree 1.Then the Fourier-Mukai functor from the bounded derived category of coherent sheaves on X to that of M, given by the normalised Poincare bundle, is fully faithful, except (possibly) for hyperelliptic curves of genus 3,4,and 5 This result is proved by establishing precise vanishing theorems for a family of vector bundles on the moduli space M. Results on the deformation and inversion of Picard bundles (already known) follow from the full faithfulness of the F-M functor

On Tuesday, June 9, at 16:30 in L4, a seminar in
the Algebraic and Symplectic Geometry series:

S. Ramanan

(COW SEMINAR) TBA

On Wednesday, June 10, at 12:00 in L5, a seminar in
the Strings Junior series:

Ryo Suzuki (University of Oxford)

On Thursday, June 11, at 13:00 in Dalitz Institute, DWB, a seminar in
the Particle Phenomenology Forum series:

Andrea Ferroglia (New York City College of Technology)

TBC

On Thursday, June 11, 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, June 12, at 14:00 in Dennis Sciama Lecture Theatre, a seminar in
the Theoretical Physics Colloquia series:

Israel Klich (Virginia)

tba

On Friday, June 12, at 16:15 in Martin Wood Lecture Theatre, Clarendon Laboratory, a seminar in
the Colloquia series:

Professor Swapan Chattopadhyay (Fermi National Accelerator Laboratory and Northern Illinois University)

Parlez-vous Beams? Frontier of Beam Physics and Accelerator Science: from High Energy Particle Colliders to Quantum Degenerate Beams

On Monday, June 15, at 12:00 in L5, a seminar in
the String Theory series:

Seung-Joo Lee (Virginia Tech)

Quiver Invariant, Abelianisation and Mutation

**Further information:**In this talk, gauged quiver quantum mechanics will be analysed for BPS state counting. Despite the wall-crossing phenomenon of those countings, an invariant quantity of quiver itself, dubbed quiver invariant, will be carefully defined for a certain class of abelian quiver theories. After that, to get a handle on nonabelian theories, I will overview the abelianisation and the mutation methods, and will illustrate some of their interesting features through a couple of simple examples.

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

Cristiano Spotti (Cambridge)

Hermitian metrics with constant Chern scalar curvature

**Further information:**I will discuss some properties of Hermitian metrics on compact complex manifolds, having constant Chern scalar curvature, focusing on the existence problem in fixed Hermitian conformal classes (the 'Chern-Yamabe problem'). This is joint work with Daniele Angella and Simone Calamai.

On Tuesday, June 16, at 12:00 in L5, a seminar in
the Relativity series:

Chris White (Glasgow)

TBA

On Tuesday, June 16, at 14:00 in L4, a seminar in
the Algebraic and Symplectic Geometry series:

Ivan Smith (Cambridge)

Symplectic Khovanov cohomology

On Wednesday, June 17, at 12:00 in L5, a seminar in
the Strings Junior series:

Juan Carlos Calvo Jackson (University of Oxford)

On Thursday, June 18, at 13:00 in Dalitz Institute, DWB, a seminar in
the Particle Phenomenology Forum series:

Isabel Garcia Garcia (University of Oxford)

TBC

On Thursday, June 18, at 16:15 in Sciama Lecture Theatre, a seminar in
the Particles and fields series:

Biagio Lucini (University of Swansea)

Non-perturbative determinations of the spectrum and anomalous dimensions in near-conformal gauge theories

On Friday, June 19, at 15:00 in L1, a seminar in
the Math Colloquium series:

Gunnar Carlsson (Stanford University)

The Shape of Data

**Further information:**There has been a great deal of attention paid to 'Big Data' over the last few years. However, often as not, the problem with the analysis of data is not as much the size as the complexity of the data. Even very small data sets can exhibit substantial complexity. There is therefore a need for methods for representing complex data sets, beyond the usual linear or even polynomial models. The mathematical notion of shape, encoded in a metric, provides a very useful way to represent complex data sets. On the other hand, Topology is the mathematical sub discipline which concerns itself with studying shape, in all dimensions. In recent years, methods from topology have been adapted to the study of data sets, i.e. finite metric spaces. In this talk, we will discuss what has been done in this direction and what the future might hold, with numerous examples.

On Friday, June 19, at 16:30 in Martin Wood Lecture Theatre, Clarendon Laboratory, a seminar in
the Colloquia series:

Professor Peter Webster (Georgia Institute of Technology)

The Halley Lecture: Understanding the Monsoon

On Friday, September 25, at 13:00 in Dalitz Institute, DWB, a seminar in
the Particle Phenomenology Forum series:

John March-Russell (University of Oxford)

TBC

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

Felix Otto (Max-Plank-Institute)

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

Bernd Sturmfels (UC Berkeley)

tba