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Monday, 11 February, 2019
Grigory Mikhalkin, Stepan Orevkov

This is a sequel to the paper \cite{MO-mw} which identified maximally writhed algebraic links in $\rp^3$ and classified them topologically. In this paper we prove that all maximally writhed...

arXiv:1902.03910
Friday, 8 February, 2019
Hugo Duminil-Copin, Gady Kozma, Vincent Tassion

We study the size of the near-critical window for Bernoulli percolation on \mathbb Z^d. More precisely, we use a quantitative Grimmett-Marstrand theorem to prove that the correlation length,...

arXiv:1902.03207
Friday, 8 February, 2019
Matteo Bonforte, Alessio Figalli

We investigate the homogeneous Dirichlet problem for the Fast Diffusion Equation u_t=\Delta u^m, posed in a smooth bounded domain \Omega\subset \mathbb{R}^N, in the exponent range m_s=(N-2)_+/(N...

arXiv:1902.03189
Saturday, 26 January, 2019
Stefano Marmi, Corinna Ulcigrai, Jean-Christophe Yoccoz

We introduce two Diophantine conditions on rotation numbers of interval exchange maps (i.e.m) and translation surfaces: the \emph{absolute Roth type condition} is a weakening of the notion of...

arXiv:1901.09191
Thursday, 24 January, 2019
Hugo Duminil-Copin, Vincent Tassion

The study of crossing probabilities - i.e. probabilities of existence of paths crossing rectangles - has been at the heart of the theory of two-dimensional percolation since its beginning. They...

arXiv:1901.08294
Wednesday, 23 January, 2019
Seung-Joo Lee, Wolfgang Lerche, Timo Weigand

We analyse the Weak Gravity Conjecture for chiral four-dimensional F-theory compactifications with N=1 supersymmetry. Extending our previous work on nearly tensionless heterotic strings in six...

arXiv:1901.08065
Sunday, 30 December, 2018
Chiara Camere, Alberto Cattaneo, Robert Laterveer

We consider a 10-dimensional family of Lehn-Lehn-Sorger-van Straten hyperkähler eightfolds which have a non-symplectic automorphism of order 3. Using the theory of finite-dimensional motives, we...

arXiv:1812.11554
Friday, 28 December, 2018
Enis Belgacem, Andreas Finke, Antonia Frassino, Michele Maggiore

We study the impact of the limit on |\dot{G}|/G from Lunar Laser Ranging on "nonlocal gravity", i.e. on models of the quantum effective action of gravity that include nonlocal terms relevant in...

arXiv:1812.11181
Friday, 28 December, 2018
Matthias Blau, Keita Kaniba Mady, K.S. Narain, George Thompson

The path integral for the partition function of Chern-Simons gauge theory with a compact gauge group is evaluated on a general Seifert 3-manifold. This extends previous results and relies on...

arXiv:1812.10966
Saturday, 22 December, 2018
Basundhara Ghosh, Ruth Durrer

Recently Dizgah & Durrer have shown that the E_g statistics, useful to test theories of modified gravity, is plagued by additional scale and bias dependent lensing contributions. In this...

arXiv:1812.09546
Friday, 21 December, 2018
Enea Di Dio, Ruth Durrer, Roy Maartens, Francesco Montanari, Obinna Umeh

We compute the full-sky redshift-dependent angular bispectrum of galaxy number counts at tree-level, including nonlinear clustering bias and estimating numerically for the first time the effect...

arXiv:1812.09297
Friday, 14 December, 2018
Artem Borin, Ines Safi, Eugene Sukhorukov

The Coulomb drag effect arises due to electron-electron interactions, when two metallic conductors are placed in close vicinity to each other. It manifests itself as a charge current or voltage...

arXiv:1812.06098

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