Tootfinder

"But to denounce an army is not to denounce a race. And given serving IDF soldiers revealed in the Israeli press just last week that the IDF is actually ordering its troops to fire into unarmed crowds of Palestinians gathering to collect food from its tightly controlled aid centres — ...— it’s understandable that feelings against this genocidal military are running high."
Glastonbury furore shows how fast our freedoms are being dismantled

Low Temperature Formation of Crystalline VO2 Domains in Porous 1 Nanocolumnar Thin Films for Thermochromic Applications
H. Acosta-Rivera, V. Rico, F. J. Ferrer, T. C. Rojas, R. Alvarez, N. Martin, A. R. Gonzalez-Elipe, A. Palmero
https://arxiv.org/abs/2507.23393

Low Temperature Formation of Crystalline VO2 Domains in Porous 1 Nanocolumnar Thin Films for Thermochromic Applications
The formation of VO2 crystalline domains in amorphous substoichiometric nanocolumnar VOx thin films subjected to an oxidation process at temperatures below 300°C has been studied. It is obtained that values of [O]/[V] above 1.9 lead to the sole formation of V2O5 after oxidation, while values below 1.9 favor the formation of VO2, V3O7 and V2O5 crystalline domains for temperatures as low as 260°C. Moreover, it is found that the adsorption of oxygen and its incorporation into the film network pr…

This https://arxiv.org/abs/2505.16529 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Modular forms of CM type mod $\ell$
We say that a normalized modular form without complex multiplication is of CM type modulo $\ell$ by an imaginary quadratic field $K$ if its Fourier coefficients $a_p$ are $0$ modulo a prime ideal dividing $\ell$ for every prime $p$ inert in $K$. In this paper, we address the following problem: Given a weight 2 cuspidal Hecke eigenform $f$ without CM which is of CM type modulo $\ell$ by an imaginary quadratic field $K$, does there exist a congruence modulo $\ell$ between $f$ and a genuine CM m…

A High-Performance Evolutionary Multiobjective Community Detection Algorithm
Guilherme O. Santos, Lucas S. Vieira, Giulio Rossetti, Carlos H. G. Ferreira, Gladston Moreira
https://arxiv.org/abs/2506.01752

A High-Performance Evolutionary Multiobjective Community Detection Algorithm
Community structure is a key feature of complex networks, underpinning a diverse range of phenomena across social, biological, and technological systems. While traditional methods, such as Louvain and Leiden, offer efficient solutions, they rely on single-objective optimization, often failing to capture the multifaceted nature of real-world networks. Multi-objective approaches address this limitation by considering multiple structural criteria simultaneously, but their high computational cost r…

On the Fourier transform of random Bernoulli convolutions
Simon Baker, Henna Koivusalo, Sascha Troscheit, Xintian Zhang
https://arxiv.org/abs/2507.21605 https://

On the Fourier transform of random Bernoulli convolutions
We investigate random Bernoulli convolutions, namely, probability measures given by the infinite convolution \[ μ_ω= \mathop{\circledast}_{k=1}^{\infty} \left( \frac{δ_0 + δ_{λ_1 λ_2 \ldots λ_{k-1} λ_k}}{2} \right), \] where $ω=(λ_k)$ is a sequence of i.i.d. random variables each following the uniform distribution on some fixed interval. We study the regularity of these measures and prove that when $\exp\mathbb{E}\left( \log λ_1\right)>\frac{2}π,$ the Fourier transform $\w…

Last week, our students learned how to conduct a proper evaluation for an NLP experiment. To this end, we introduced a small textcorpus with sentences about Joseph Fourier, who counts as one of the discoverers of the greenhouse effect, responsible for global warming.

Fourier minimization and imputation of time series
Will Burstein, Alex Iosevich, Azita Mayeli, Hari Sarang Nathan
https://arxiv.org/abs/2506.19226 https://…

Fourier minimization and imputation of time series
One of the most common procedures in modern data analytics is filling in missing values in times series. For a variety of reasons, the data provided by clients to obtain a forecast, or other forms of data analysis, may have missing values, and those values need to be filled in before the data set can be properly analyzed. Many freely available forecasting software packages, such as the sktime library, have built-in mechanisms for filling in missing values. The purpose of this paper is to adapt …

🤯 Been working for hours and missed the newest eruption 🌋🇮🇸
#Iceland

Gossprungan hætt að lengjast - RÚV.is
Eldgos hófst á Sundhnúksgígaröðinni á Reykjanesskaga klukkan 03:54.Þetta er níunda gosið á þessum slóðum og það tólfta á Reykjanesskaga frá því að hrinan hófst með gosi við Fagradalsfjall í mars 2021.Kvikuhlaup hófst rétt fyrir miðnætti með ákafri jarðskjálftahrinu.Búið er að rýma Bláa lónið og tjaldsvæðið í Grindavík.Hættustig almannavarna hefur verið virkjað og hættumat fyrir svæðið hefur verið uppfært.Gossprungan er tæplega tveggja kíl…

A Parametric Study on the Pulsation of Burner-Stabilized CH4-O2 Flames Moderated by CO2 Addition -- Frequencies, Modes and Regime Diagrams
Xiangyu Nie, Shuoxun Zhang, Shengkai Wang
https://arxiv.org/abs/2507.10905

A Parametric Study on the Pulsation of Burner-Stabilized CH4-O2 Flames Moderated by CO2 Addition -- Frequencies, Modes and Regime Diagrams
This study investigated the pulsating instability of burner-stabilized premixed CH4-O2 flames at various levels of CO2 dilution. Experiments were conducted using a water-cooled porous-plug burner of 18 mm diameter over a wide range of mixture compositions and flow rates, during which time-resolved measurements of flame chemiluminescence and gas temperature were obtained. The primary oscillation frequencies of the pulsating flames were determined using fast Fourier transform and harmonic power a…

FB-Diff: Fourier Basis-guided Diffusion for Temporal Interpolation of 4D Medical Imaging
Xin You, Runze Yang, Chuyan Zhang, Zhongliang Jiang, Jie Yang, Nassir Navab
https://arxiv.org/abs/2507.04547

FB-Diff: Fourier Basis-guided Diffusion for Temporal Interpolation of 4D Medical Imaging
The temporal interpolation task for 4D medical imaging, plays a crucial role in clinical practice of respiratory motion modeling. Following the simplified linear-motion hypothesis, existing approaches adopt optical flow-based models to interpolate intermediate frames. However, realistic respiratory motions should be nonlinear and quasi-periodic with specific frequencies. Intuited by this property, we resolve the temporal interpolation task from the frequency perspective, and propose a Fourier b…