Sunday, 25 November, 2018
Alberto S. Cattaneo, Ivan Contreras

A Lagrangian subspace L of a weak symplectic vector space is called \emph{split Lagrangian} if it has an isotropic (hence Lagrangian) complement. When the symplectic structure is strong, it is...

Sunday, 18 November, 2018
Alberto S. Cattaneo, Domenico Fiorenza, Riccardo Longoni

This note is an expanded and updated version of our entry with the same title for the 2006 Encyclopedia of Mathematical Physics. We give a brief overview of graded Poisson algebras, their main...

Thursday, 15 November, 2018
Norbert Hungerbühler, Gideon Villiger

In the Euclidean plane, two intersecting circles or two circles which are tangent to each other clearly do not carry a finite Steiner chain. However, in this paper we will show that such exotic...

Thursday, 15 November, 2018
Jørgen Ellegaard Andersen, Rinat Kashaev

We review our construction of the Teichmüller TQFT. We recall our volume conjecture for this TQFT and the examples for which this conjecture has been established. We end the paper with a brief...

Monday, 12 November, 2018
Katsushi Ito, Marcos Mariño, Hongfei Shu

We derive a system of TBA equations governing the exact WKB periods in one-dimensional Quantum Mechanics with arbitrary polynomial potentials. These equations provide a generalization of the ODE...

Monday, 5 November, 2018
Richard Rimanyi, Andras Szenes

Grothendieck polynomials were introduced by Lascoux and Schützenberger, and they play an important role in K-theoretic Schubert calculus. In this paper, we give a new definition of double stable...

Wednesday, 31 October, 2018
David Corlin Marchand, Ioan Manolescu

We study randomly growing trees governed by the affine preferential attachment rule. Starting with a seed tree S, vertices are attached one by one, each linked by an edge to a random vertex of...

Tuesday, 30 October, 2018
Andrea L. Guerrieri, Joao Penedones, Pedro Vieira

We consider the S-matrix bootstrap of four dimensional scattering amplitudes with O(3) symmetry and no bound-states. We explore the allowed space of scattering lengths which parametrize the...

Tuesday, 30 October, 2018
Julian Sonner, Benjamin Withers

We perform a unified systematic analysis of d+1 dimensional, spin \ell representations of the isometry algebra of the maximally symmetric spacetimes AdS_d+1, \mathbb{R}_{1,d} and dS_d+1. This...

Saturday, 27 October, 2018
Adam Kanigowski, Mariusz Lemańczyk, Corinna Ulcigrai

The Ratner property, a quantitative form of divergence of nearby trajectories, is a central feature in the study of parabolic homogeneous flows. Discovered by Marina Ratner and used in her...

Friday, 26 October, 2018
Alexander Glazman, Ioan Manolescu

We show that the loop O(n) model exhibits exponential decay of loop sizes whenever n\geq 1 and x<\tfrac{1}{\sqrt{3}}+\varepsilon(n), for some suitable choice of \varepsilon(n)>0.

Wednesday, 24 October, 2018
Slava Rychkov, Andreas Stergiou

Fixed points of scalar field theories with quartic interactions in d=4-\varepsilon dimensions are considered in full generality. For such theories it is known that there exists a scalar function...