Tootfinder

Avis aux développeureuses front : c'est quoi le mieux pour un menu responsive :
1) mettre le code HTML pour les deux versions écran large et écran étroit et afficher ou non via une media query CSS
2) mettre le code HTML uniquement pour la version pour le public cible, et ajouter un listener pour adapter le DOM en fonction des changements de résultat de la media query
La solution 1) permet de se passer du JS/WASM mais duplique le menu plusieurs fois dans la page (ce qui…

"Varsinais-Suomen hyvinvointialueen aluehallituksen puheenjohtaja Niina Alho (sd.) muistuttaa, että *osa* laskuista on varmasti aiheellisia ja ne täytyy maksaa."
Varmaan ilahduttaa tuhansien eurojen karhulaskun saanutta tieto, että lasku voi olla aiheellinen tai sitten ei.
https://yle.fi/a/74-20189963

Turkulainen Hannu Lahti sai yli 17 000 euron karhukirjeen hyvinvointialueelta – hän ei edes tiedä, mitä lasku koskee
Varsinais-Suomen hyvinvointialue on alkanut periä vuosien takaisia laskuja. Karhukirjeen on saanut ainakin 26 000 ihmistä. Perintäkirjeitä on lähetetty myös vainajille.

$p$-curvature operators and Satake-type phenomenon for $\frak{sl}_2$ KZ equations with $\kappa=\pm 2$
Prakash Belkale, Evgeny Mukhin, Alexander Varchenko
https://arxiv.org/abs/2508.20270

$p$-curvature operators and Satake-type phenomenon for $\frak{sl}_2$ KZ equations with $κ=\pm 2$
The $\frak{sl}_2$ KZ differential equations with values in the tensor power of the fundamental representation with parameter $κ=\pm 2$ are considered. A Satake-type correspondence is established over complex numbers and subsequently reduced to finite characteristic. This correspondence enables the study of the KZ equations on the lower weight subspaces of the tensor power in terms of the wedge powers of the weight subspace of the weight just below the highest weight. We apply this approach t…

Mathematical Analysis 1
Martin Klazar
https://arxiv.org/abs/2508.19405 https://arxiv.org/pdf/2508.19405

Mathematical Analysis 1
Preliminary version of a course in univariate real analysis, with 14 chapters and 1 appendix (Ch1--Ch8 complete at present). 1. Infinite sums. Real numbers; 2. Limits of sequences and subsequences; 3. Arithmetic of limits. AK series; 4. Infinite series. Elementary functions; 5. Limits of functions. Asymptotic notation; 6. Continuous functions; 7. Derivatives; 8. Applications of mean value theorems; 9. Taylor polynomials and series. Real analytic functions; 10. Primitives of uniformly continuous…

Continuous-Time System Identification and OCV Reconstruction of Li-ion Batteries via Regularized Least Squares
Yang Wang, Riccardo M. G. Ferrari, Michel Verhaegen
https://arxiv.org/abs/2509.21116

Continuous-Time System Identification and OCV Reconstruction of Li-ion Batteries via Regularized Least Squares
Accurate identification of lithium-ion (Li-ion) battery parameters is essential for managing and predicting battery behavior. However, existing discrete-time methods hinder the estimation of physical parameters and face the fast-slow dynamics problem presented in the battery. In this paper, we developed a continuous-time approach that enables the estimation of battery parameters directly from sampled data. This method avoids discretization errors in converting continuous-time models into discre…

Multivariate Quadratic Hawkes Processes -- Part II: Non-Parametric Empirical Calibration
Cecilia Aubrun, Michael Benzaquen, Jean-Philippe Bouchaud
https://arxiv.org/abs/2509.21244

Multivariate Quadratic Hawkes Processes -- Part II: Non-Parametric Empirical Calibration
This is the second part of our work on Multivariate Quadratic Hawkes (MQHawkes) Processes, devoted to the calibration of the model defined and studied analytically in Aubrun, C., Benzaquen, M., & Bouchaud, J. P., Quantitative Finance, 23(5), 741-758 (2023). We propose a non-parametric calibration method based on the general method of moments applied to a coarse-grained version of the MQHawkes model. This allows us to bypass challenges inherent to tick by tick data. Our main methodological innov…

Sparse minimum Redundancy Maximum Relevance for feature selection
Peter Naylor, Benjamin Poignard, H\'ector Climente-Gonz\'alez, Makoto Yamada
https://arxiv.org/abs/2508.18901

Sparse minimum Redundancy Maximum Relevance for feature selection
We propose a feature screening method that integrates both feature-feature and feature-target relationships. Inactive features are identified via a penalized minimum Redundancy Maximum Relevance (mRMR) procedure, which is the continuous version of the classic mRMR penalized by a non-convex regularizer, and where the parameters estimated as zero coefficients represent the set of inactive features. We establish the conditions under which zero coefficients are correctly identified to guarantee acc…

OpenAI says it is developing a "different ChatGPT experience" for teens and plans to use age-prediction tech to bar kids under 18 from the standard version (Megan Morrone/Axios)
https://www.axios.com/2025/09/16/chatgpt-for-teens-openai-parents

OpenAI is building a ChatGPT for teens
The new version seeks to limit the potential for harm to minors.

On the Parameterized Complexity of Grundy Domination and Zero Forcing Problems
Robert Scheffler
https://arxiv.org/abs/2508.18104 https://arxiv.org/pdf/2508…

On the Parameterized Complexity of Grundy Domination and Zero Forcing Problems
We consider two different problem families that deal with domination in graphs. On the one hand, we focus on dominating sequences. In such a sequence, every vertex dominates some vertex of the graph that was not dominated by any earlier vertex in the sequence. The problem of finding the longest dominating sequence is known as $\mathsf{Grundy~Domination}$. Depending on whether the closed or the open neighborhoods are used for domination, there are three other versions of this problem. We show th…

@… #HC43S I've published several 3D printable designs for #HamRadio, all designed with