Seminars in Mathematical Sciences

Seminars in the next week
Mar 27 (Fri)

13:00 MCS0001 HEPMSean Hartnoll (Cambridge): Holographic banners

This will be an informal talk about an upcoming paper. I will describe a way of thinking about the interior and the exterior of a black hole on an equal footing, that we have called a “holographic banner”. I will describe an application of this approach to the interior BKL chaos of AdS black holes.

Venue: MCS0001

Apr 02 (Thu)

13:00 MCS2068 G&TThiago de Paiva (Peking University): A simpler braid description for all links in the 3-sphere

By Alexander's theorem, every link in the 3-sphere can be represented as the closure of a braid. Lorenz links and twisted torus links are two families that have been extensively studied and are well described in terms of braids. In this talk, we present a natural generalization of Lorenz links and twisted torus links that produces all links in the 3-sphere, providing a simpler braid description for every link in the 3-sphere.

Venue: MCS2068

14:00 MCS2068 ProbMárton Borbényi (Eötvös Loránd University & Alfréd Rényi Institute in Mathematics): Random cluster model on locally tree-like regular graphs

For a graph $G=(V,E)$ the random cluster model with given parameters $q>0,\ w>0$ is random subset of edges such that the probability of some $A\subseteq E$ is $\frac{1}{Z_G(q,w)}q^{k(A)}w^{|A|}$, where $k(A)$ denotes the number of connected components of the graph $(V,A)$ and $Z_G(q,w)=\sum_{A\subseteq E }q^{k(A)}w^{|A|}$ the partition function. This model is closely connected to other statistical physical models, such as the Bernoulli bond percolation, Ising model, uniform spanning tree.

We describe the free energy $\lim\frac{1}{|V(G_n)|}\ln Z_{G_n}(q,w)$ on a locally tree-like sequence, together with the phase transition and the typical local landscape of the random cluster model when $q>1$. Our main tools are large deviation type inequalities and a new connection between the random cluster model and the Ising model.

Ongoing work with Ferenc Bencs, Péter Csikvári and Endre Csóka.

Venue: MCS2068


Click on title to see abstract.

Back to Homepage

Upcoming Seminars by Series

Click on series to expand.

Back to Homepage

• Amplitudes and Correlators

Contact: arthur.lipstein@durham.ac.uk

No upcoming seminars have been scheduled (not unusual outside term time).

• Analysis and PDE

Usual Venue: MCS2068

Contact: yohance.a.osborne@durham.ac.uk

No upcoming seminars have been scheduled (not unusual outside term time).

• Applied Mathematics

Usual Venue: MCS3070

Contact: andrew.krause@durham.ac.uk

No upcoming seminars have been scheduled (not unusual outside term time).

• Arithmetic Study Group

Usual Venue: MCS2068

Contact: herbert.gangl@durham.ac.uk

No upcoming seminars have been scheduled (not unusual outside term time).

• CPT Colloquium

Usual Venue: OC218

Contact: mohamed.anber@durham.ac.uk

For more information, see HERE.


No upcoming seminars have been scheduled (not unusual outside term time).

• Department Research Colloquium

Usual Venue: MCS0001

Contact: inaki.garcia-etxebarria@durham.ac.uk,sunil.chhita@durham.ac.uk

No upcoming seminars have been scheduled (not unusual outside term time).

• Distinguished and Public Lectures

Usual Venue: MCS0001

Contact: sabine.boegli@durham.ac.uk,alpar.r.meszaros@durham.ac.uk

No upcoming seminars have been scheduled (not unusual outside term time).

• Education and Pedagogy

Usual Venue: MCS3052

Contact: andrew.krause@durham.ac.uk

No upcoming seminars have been scheduled (not unusual outside term time).

• Gandalf

Usual Venue: MCS3070

Contact: daniel.n.disney@durham.ac.uk

No upcoming seminars have been scheduled (not unusual outside term time).

• Geometry and Topology

Usual Venue: MCS2068

Contact: fernando.galaz-garcia@durham.ac.uk

Apr 02 13:00 Thiago de Paiva (Peking University): A simpler braid description for all links in the 3-sphere

By Alexander's theorem, every link in the 3-sphere can be represented as the closure of a braid. Lorenz links and twisted torus links are two families that have been extensively studied and are well described in terms of braids. In this talk, we present a natural generalization of Lorenz links and twisted torus links that produces all links in the 3-sphere, providing a simpler braid description for every link in the 3-sphere.

Venue: MCS2068

Apr 30 13:00 Anthea Monod (Imperial): TBA

Venue: MCS2068

May 07 13:00 Wilhelm Klingenberg (Durham): TBA

Venue: MCS2068

May 14 13:00 Victoria Pelayo Alvaredo (Universidad Autónoma de Madrid/ICMAT): TBA

Venue: MCS2068

• HEP Journal Club

Usual Venue: MCS3070

Contact: mendel.t.nguyen@durham.ac.uk

No upcoming seminars have been scheduled (not unusual outside term time).

• HEP Lunchtime

Usual Venue: MCS0001

Contact: p.e.dorey@durham.ac.uk,enrico.andriolo@durham.ac.uk,tobias.p.hansen@durham.ac.uk

Mar 27 13:00 Sean Hartnoll (Cambridge): Holographic banners

This will be an informal talk about an upcoming paper. I will describe a way of thinking about the interior and the exterior of a black hole on an equal footing, that we have called a “holographic banner”. I will describe an application of this approach to the interior BKL chaos of AdS black holes.

Venue: MCS0001

• Probability

Usual Venue: MCS2068

Contact: tyler.helmuth@durham.ac.uk,oliver.kelsey-tough@durham.ac.uk

Apr 02 14:00 Márton Borbényi (Eötvös Loránd University & Alfréd Rényi Institute in Mathematics): Random cluster model on locally tree-like regular graphs

For a graph $G=(V,E)$ the random cluster model with given parameters $q>0,\ w>0$ is random subset of edges such that the probability of some $A\subseteq E$ is $\frac{1}{Z_G(q,w)}q^{k(A)}w^{|A|}$, where $k(A)$ denotes the number of connected components of the graph $(V,A)$ and $Z_G(q,w)=\sum_{A\subseteq E }q^{k(A)}w^{|A|}$ the partition function. This model is closely connected to other statistical physical models, such as the Bernoulli bond percolation, Ising model, uniform spanning tree.

We describe the free energy $\lim\frac{1}{|V(G_n)|}\ln Z_{G_n}(q,w)$ on a locally tree-like sequence, together with the phase transition and the typical local landscape of the random cluster model when $q>1$. Our main tools are large deviation type inequalities and a new connection between the random cluster model and the Ising model.

Ongoing work with Ferenc Bencs, Péter Csikvári and Endre Csóka.

Venue: MCS2068

• Pure Maths Colloquium

Usual Venue: MCS2068

Contact: michael.r.magee@durham.ac.uk

No upcoming seminars have been scheduled (not unusual outside term time).

• Spectra and Moduli

Usual Venue: MCS3070

Contact: joe.thomas@durham.ac.uk

No upcoming seminars have been scheduled (not unusual outside term time).

• Statistics

Usual Venue: MCS2068

Contact: hyeyoung.maeng@durham.ac.uk,andrew.iskauskas@durham.ac.uk

No upcoming seminars have been scheduled (not unusual outside term time).

• Stats4Grads

Contact: adam.stone2@durham.ac.uk

No upcoming seminars have been scheduled (not unusual outside term time).

Special Series

These link to some of the special events hosted by the Department:


• [LMS|EPSRC] Durham Symposia (from 1974)
• Collingwood Lectures (from 1984)