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Wer noch ein Weihnachtsgeschenk braucht:
Film
Schulter an Schulter, wo der Staat versagte
#Hamburg

Regular Lagrangians in Lefschetz fibrations
Joseph Breen, Agniva Roy, Luya Wang
https://arxiv.org/abs/2510.12170 https://arxiv.org/pdf/2510.12170

Regular Lagrangians in Lefschetz fibrations
We characterize regularity of Lagrangian submanifolds in Weinstein Lefschetz fibrations, establishing a conjecture of Giroux and Pardon. Our main result is the Weinstein analogue of a closed symplectic Lefschetz pencil result of Auroux, Muñoz, and Presas. As an application, given a Legendrian link in tight $S^3$ and an exact filling which is part of an arboreal skeleton for the $4$-ball, we build a Lefschetz fibration such that the image of the filling and all of its mutations are arcs in the …

Isoperimetric Bounds for Weighted Steklov Eigenvalues with Radial Weights
Friedemann Brock, Francesco Chiacchio
https://arxiv.org/abs/2510.12631 https://ar…

Isoperimetric Bounds for Weighted Steklov Eigenvalues with Radial Weights
We study the following class of Steklov eigenvalue problems: \[ \nabla \cdot \bigl( w \nabla u \bigr) = 0 \quad \text{in } Ω, \qquad \frac{\partial u}{\partial ν} = γv u \quad \text{on } \partial Ω, \] where $w$ and $v$ are prescribed positive radial functions, $Ω$ is a Lipschitz domain in $\mathbb{R}^N$ with $N \geq 2$ and $ν$ denotes its outward unit normal. Extending classical results in the unweighted case due to Weinstock, the first author, and others, we establish isoperimetric ineq…

RE: https://ruhr.social/@Jayson1985/115594781268916741
Ich hätte ja schon Lust so ein Projekt mit Frankfurt zu machen und dann die flankierende Radinfrastruktur mit dieser enorm starken Stadtverwaltung gleich mitzuplanen.
Wenn heute Weihnachten wäre -…