Tootfinder

Wimbledon 2025:
Coco Gauff will be the No 2 seed for the second straight Grand Slam event following her victory at the 2025 French Open.
https://www.tennis365.com/tennis-news/wimbledon-2025-womens-seeds-confir…

Wimbledon 2025 women's singles seeds confirmed: Sabalenka & Gauff lead, Swiatek's lowest position since 2021
The full list of women's singles seeds for the 2025 Wimbledon Championships.

Starting up Bring Her Back. Anybody seen it, opinions? Guess I'll see. Will probably get to finish most of it before wifey's done with her exam 😂
#horror

Bring Her Back (2025)
Following the death of their father, a brother and sister are introduced to their new sibling by their foster mother, only to learn that she has a terrifying secret.

The smallest singular value of sparse discrete random matrices
Kexin Yu
https://arxiv.org/abs/2507.17741 https://arxiv.org/pdf/2507.17741

The smallest singular value of sparse discrete random matrices
Let $M_n$ be an $n \times n$ random matrix with i.i.d. sparse discrete entries. In this paper, we develop a simple framework to solve the approximate Spielman-Teng theorem for $M_n$, which has the following form: There exist constants $C, c>0$ such that for all $η\geq 0$, $\textbf{P}\left(s_n\left(M_n\right) \leq η\right) \lesssim n^C η+\exp \left(-n^c\right)$. As an application, we give an approximate Spielman-Teng theorem for $M_n$ whose entries are $μ-$lazy random variables, extending pr…

Ground and low-lying excited state potential energy surfaces of diiodomethane in four dimensions
Yijue Ding
https://arxiv.org/abs/2508.14843 https://arxiv.…

Ground and low-lying excited state potential energy surfaces of diiodomethane in four dimensions
We report a set of adiabatic potential energy surfaces (PESs) for diiodomethane, including the ground electronic state and all excited states accessible via single-photon absorption near 260 nm. Although constrained to four dimensions, these PESs capture the essential photochemical processes following photoexcitation--namely, bond breaking and rearrangement among the methyl radical and the two iodine atoms. Constructed using an accurate and efficient spline interpolation algorithm, the PESs rep…

Global existence and boundedness in an attraction-repulsion chemotaxis system with nonlocal logistic source and sublinear productions
Gnanasekaran Shanmugasundaram, Nithyadevi Nagarajan
https://arxiv.org/abs/2507.08305

Global existence and boundedness in an attraction-repulsion chemotaxis system with nonlocal logistic source and sublinear productions
This paper deals with the following attraction-repulsion chemotaxis system with nonlocal logistic source and sublinear productions \begin{align} \left\{ \begin{array}{rrll} &&u_t = d_1 Δu-χ\nabla\cdot(u^k \nabla v)+ξ\nabla\cdot(u^k \nabla w)+ μu^m \left(1-\int_Ωu(x,t)\dx\right),\hspace*{0.5cm} &x\inΩ,\, t>0,\\ &&v_t = d_2 Δv-αv+f(u), &x\inΩ,\, t>0,\\ &&w_t = d_3 Δw-βw+f(u), &x\inΩ,\, t>0,\\ &&\frac{\partial u}{\partialν} = \frac{\partial v}{\partialν} = \frac{\partial …

Growth of few-layer molecular crystals of PTCDI on hexagonal boron nitride by microspacing air-gap sublimation
Nils LeCoutre, Tolibjon Abdurakhmonov, Paul Weinbrenner, Kenji Watanabe, Takashi Taniguchi, Tobias Korn, Franziska Fennel, Oliver K\"uhn, Friedemann Reinhard
https://arxiv.org/abs/2508.04591

Growth of few-layer molecular crystals of PTCDI on hexagonal boron nitride by microspacing air-gap sublimation
Extended two-dimensional (2D) crystals of dye molecules adsorbed on 2D material substrates like boron nitride have recently become a subject of intense study, with potential applications ranging from quantum technology to optoelectronics. The most established technique for the production of these films is physical vapor transport in vacuum. We demonstrate that few-layer crystalline films of the organic dye molecule PTCDI on boron nitride can be produced by microspacing in-air sublimation, a rad…

It's our family's practice to read the Declaration of Independence together every 4th of July. 
Out loud.
We'll do that today. You might want to try it too. Especially this year.
https://www.archives.gov/founding-docs/declaration-transcript

This document from 249 years ago seems remarkably relevant today https://www.archives.gov/founding-docs/declaration-transcript
If someone wants some slogans perhaps for signage, there's some good stuff in there to quote.
Maybe quote it along with…

Declaration of Independence: A Transcription
Note: The following text is a transcription of the Stone Engraving of the parchment Declaration of Independence (the document on display in the Rotunda at the National Archives Museum.) The spelling and punctuation reflects the original.

Google Search Advertising after Dobbs v. Jackson
Yelena Mejova, Ronald E. Robertson, Catherine A. Gimbrone, Sarah McKetta
https://arxiv.org/abs/2507.06640 …

Google Search Advertising after Dobbs v. Jackson
Search engines have become the gateway to information, products, and services, including those concerning healthcare. Access to reproductive health has been especially complicated in the wake of the 2022 Dobbs v. Jackson decision by the Supreme Court of the United States, splintering abortion regulations among the states. In this study, we performed an audit of the advertisements shown to Google Search users seeking information about abortion across the United States during the year following t…

Faster Estimation of the Average Degree of a Graph Using Random Edges and Structural Queries
Lorenzo Beretta, Deeparnab Chakrabarty, C. Seshadhri
https://arxiv.org/abs/2507.06925 …

Faster Estimation of the Average Degree of a Graph Using Random Edges and Structural Queries
We revisit the problem of designing sublinear algorithms for estimating the average degree of an $n$-vertex graph. The standard access model for graphs allows for the following queries: sampling a uniform random vertex, the degree of a vertex, sampling a uniform random neighbor of a vertex, and ``pair queries'' which determine if a pair of vertices form an edge. In this model, original results [Goldreich-Ron, RSA 2008; Eden-Ron-Seshadhri, SIDMA 2019] on this problem prove that the complexity of…