Tootfinder

Kein noch so kleines Museum ohne Nummernüberraschungen: Im nur per prenotazione zugänglichen Archivio e Percorso Museale d'Ateneo der Uni Siena werden diese, im 19. Jahrhundert verwendeten Säcke voll nummerierter "ghiandine" ("Eicheln") ausgestellt, letztere enthielten zusammengerollte Zettelchen mit den Prüfungsfragen.

heise | Fotos-App am Mac: So sortieren Sie Ihre Sammlung komfortabler
Unser Tool "Stapelbenennung für Fotos" erweitert die Fähigkeiten der macOS-Fotos-App: Es fügt Metadaten und fortlaufende Nummern in Titel und Bildtitel ein.

Fourier Learning Machines: Nonharmonic Fourier-Based Neural Networks for Scientific Machine Learning
Mominul Rubel, Adam Meyers, Gabriel Nicolosi
https://arxiv.org/abs/2509.08759

Fourier Learning Machines: Nonharmonic Fourier-Based Neural Networks for Scientific Machine Learning
We introduce the Fourier Learning Machine (FLM), a neural network (NN) architecture designed to represent a multidimensional nonharmonic Fourier series. The FLM uses a simple feedforward structure with cosine activation functions to learn the frequencies, amplitudes, and phase shifts of the series as trainable parameters. This design allows the model to create a problem-specific spectral basis adaptable to both periodic and nonperiodic functions. Unlike previous Fourier-inspired NN models, the …

Was sind denn das für Schwachköpfe, die mit solchen seltsamen no name E-Bike ohne treten und ohne Nummernschild mit 30-40 km/h durch die Gegend heizen?

Area Law for the entanglement entropy of free fermions in nonrandom ergodic field
Leonid Pastur, Mira Shamis
https://arxiv.org/abs/2510.11111 https://arxiv…

Area Law for the entanglement entropy of free fermions in nonrandom ergodic field
The paper deals with the asymptotic behavior of one of the widely used characteristics of correlations in large quantum systems. The correlations are known as quantum entanglement, the characteristic is called the entanglement entropy, and as large systems we consider an ideal gas of spinless lattice fermions. The system is determined by its one-body Hamiltonian. As shown in \cite{EPS}, if the Hamiltonian is an ergodic finite difference operator with exponentially decaying spectral projection, …

Maximal dilatation on nonorientable surfaces
Ji-Young Ham, Joongul Lee
https://arxiv.org/abs/2508.08323 https://arxiv.org/pdf/2508.08323

Maximal dilatation on nonorientable surfaces
On each nonorientable surface of even genus $g \geq 4$, we show that the Liechti-Strenner's polynomial in~\cite{LiechtiStrenner18} gives a maximal dilatation among pseudo-Anosov diffeomorphisms with an orientable invariant foliation. This is proved by showing that this polynomial is irreducible.

🇺🇦 #NowPlaying on BBCRadio3's #ThroughTheNight
Hilda Sehested, Nina Reintoft & Malene Thastum:
🎵 3 Fantasy pieces
#HildaSehested #NinaReintoft #MaleneThastum

Czy po kupnie biletu w kasie KD okazuje się, że zestawy konduktorskie w KW mają problem ze skanowaniem tego biletu? Być może.
Czy od razu wziąłem się za skanowanie i analizę porównawczą kodów kreskowych na biletach? Oczywiście.
Otóż, bilety KD mają dwa kody kreskowe: kod QR z zakodowaną (niepotrzebnie) w base64 binarną papką, której niestety nie mam czasu analizować, oraz kod code128 z serią i numerem biletu, zakodowaną w postaci:
AA000000000 (0)
Z kolei KW/PR mają wy…

Stably exotic 4-manifolds
Daniel Kasprowski, Mark Powell
https://arxiv.org/abs/2508.10499 https://arxiv.org/pdf/2508.10499…

Stably exotic 4-manifolds
A pair of closed, smooth $4$-manifolds $M$ and $M'$ are stably exotic if they are stably homeomorphic but not stably diffeomorphic, where stabilisation refers to connected sum with copies of $S^2 \times S^2$. Orientable stable exotica do not exist by a result of Gompf, but Kreck showed that nonorientable examples are plentiful. We investigate which values of the fundamental group $π$ and the first and second Stiefel-Whitney classes $w_1$ and $w_2$ admit stably exotic pairs, providing a complet…

Das Wiener Amerlinghaus feiert heute seinen Fünfziger – ich gratuliere mit dem kurzen Hinweis auf eine noch offene Hausnummernfrage: https://nummer.hypotheses.org/651