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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.

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.

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, …

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?

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 …

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…

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

Renormalizability and nonrenormalizability of nonlocal potentials
N. Jacobi, A. M. Gasparyan, E. Epelbaum
https://arxiv.org/abs/2509.08512 https://arxiv.or…

Renormalizability and nonrenormalizability of nonlocal potentials
We consider separable toy models of the nucleon-nucleon interaction inspired by chiral effective field theory. We show that nonlocality of the long-range forces causes the need for nonlocal counter terms, or even makes the whole approach nonrenormalizable.

On the signature of squared distance matrices of metric measure spaces
Alexey Kroshnin, Tianyu Ma, Eugene Stepanov
https://arxiv.org/abs/2508.07340 https://

On the signature of squared distance matrices of metric measure spaces
We consider the numbers of positive and negative eigenvalues of matrices of squared distances between randomly sampled i.i.d. points in a given metric measure space. These numbers and their limits, as the number of points grows, in fact contain some important information about the whole space. In particular, by knowing them, we can determine whether this space can be isometrically embedded in the Hilbert space. We show that the limits of these numbers exist almost surely, are nonrandom and the …

Frustration-enhanced persistent currents in correlated trimer nanorings
Tie-Feng Fang, Wei-Tao Lu, Ai-Min Guo, Qing-Feng Sun
https://arxiv.org/abs/2509.03924 https://

Frustration-enhanced persistent currents in correlated trimer nanorings
We investigate the persistent current in a correlated trimer nanoring comprising of three magnetic atoms, which sits on a metallic host and encloses a magnetic flux. In the molecular-orbital regime, charge fluctuations can reverse the aromaticity of the trimer molecule by driving quantum phase transitions between many-body states. It is shown that in frustrated trimers the superexchange-induced current as a function of interatom hopping is enhanced by the competition of conflicting magnetic ord…