Tootfinder

Engineering teams often get stuck striving for perfection, not out of laziness, but due to an insatiable desire to improve. Join Tim Schmolka next week at Berlin Buzzwords to discover how teams can overcome perfectionism. He will discuss the significance of setting clear boundaries, balancing quality with timely delivery, and focusing on what truly matters.
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The Perfection Trap
Many engineering teams face a common struggle: the desire to deliver perfect solutions can delay projects and limit business impact. This session explores how the familiar Parkinson’s Law is often misunderstood in engineering contexts. Instead of laziness, it’s excessive craftsmanship and relentless perfectionism that extend timelines. Through real-world examples and practical insights, you’ll learn about the “perfection pressure spectrum,” which helps diagnose whether your team is st…

With moving my calendar away from Google I was looking for a Caldev solution, but ...
Interesting take on CalDev and encryption on Cryptpad's github page.
No chance that that will happen encrypted.
It's waiting for an solution in the Caldev protocol. 😇
[Feature request] Possibility to have CalDAV for the Calendar · Issue #823 · cryptpad/cryptpad

Soliton self-excitation under pulsed driving in a Kerr resonator
Matthew Macnaughtan, Zongda Li, Yiqing Xu, Xiaoming Wei, Zhongmin Yang, St\'ephane Coen, Miro Erkintalo, Stuart G. Murdoch
https://arxiv.org/abs/2506.10307

Soliton self-excitation under pulsed driving in a Kerr resonator
We present a novel regime of cavity soliton excitation in a Kerr resonator driven by a train of desynchronised pulses. In this regime, the soliton solution is shown to be the sole available state for the intracavity field, allowing for the automatic excitation of single solitons without the application of any external perturbations or parameter ramping. The self-excitation of cavity soliton frequency combs is validated through numerical continuation of the Lugiato-Lefever equation, direct numer…

Noen ganger kjenner jeg på frustrasjonen over at det er arbeidsledere og et hierarki som bestemmer over meg på jobben. Det er urettferdig at bare et fåtall har kontroll over viktige avgjŸrelser som former min arbeidshverdag, mens vi som faktisk utfŸrer arbeidet sjelden får si vår mening eller påvirke det som skjer.
Jeg Ÿnsker meg en arbeidsplass der alle oss arbeidere sammen tar de viktige avgjŸrelsene som angår arbeidsdagen og framtiden vår. For meg er det viktig at ingen enkeltperson…

Analytical solutions of CPT-odd Maxwell equations in Schwarzschild spacetime
Hao Wang, Zhi Xiao, Bing Sun
https://arxiv.org/abs/2506.10409 https://

Analytical solutions of CPT-odd Maxwell equations in Schwarzschild spacetime
In this work, we present the CPT-violating (CPTV) Maxwell equations in curved spacetime using the Newman-Penrose (NP) formalism. We obtain a semi-analytical solution to the Maxwell equations in Schwarzschild spacetime under the assumption that the CPT-odd $\left(k_{AF}\right)^μ$ term exhibits spherical symmetry in the Schwarzschild background. Retaining only terms up to linear order in the $\left(k_{AF}\right)^μ$ coefficient, we obtain perturbative solutions by treating the solutions of the L…

Generalized Poisson kernel and solution of the Dirichlet problem for the radial Schr\"odinger equation
V\'ictor A Vicente-Ben\'itez
https://arxiv.org/abs/2506.10273

Generalized Poisson kernel and solution of the Dirichlet problem for the radial Schrödinger equation
We present an explicit construction of the solution to the Dirichlet boundary value problem for the radial Schrödinger equation in the unit ball, with a complex-valued potential $V$ satisfying the condition $\int_0^1r|V(r)|dr<\infty$. The solution is based on the construction of an explicit orthogonal set of solutions for the radial equation. In the case of a Dirichlet problem with boundary data in $W^{\frac{1}{2},2}(\mathbb{S}^{d-1})$, the solution is expressed as a series expansion…

V455 Car: an oscillating eclipsing Algol-type binary in triple star system
Zhao-Long Deng, Wen-Ping Liao, Li-Ying Zhu, Xiang-Dong Shi, Nian-Ping Liu, Ping Li
https://arxiv.org/abs/2506.10124

V455 Car: an oscillating eclipsing Algol-type binary in triple star system
V455 Car is a southern oscillating eclipsing Algol-type system with an orbital period of 5.132888 days. Our first photometric solutions based on the Transiting Exoplanet Survey Satellite indicate that it is a semi-detached binary with the secondary star is almost filling its Roche lobe. The noticeable O'Connell effect in light curve could be explained by hot spot on the primary component, which may be attributed to the mass transfer from the secondary component to the primary one. The absolute …

Sensitivity of Optimal Control Solutions and Quantities of Interest with Respect to Component Functions
Jonathan R. Cangelosi, Matthias Heinkenschloss
https://arxiv.org/abs/2506.10804

Sensitivity of Optimal Control Solutions and Quantities of Interest with Respect to Component Functions
This work establishes sensitivities of the solution of an optimal control problem (OCP) and a corresponding quantity of interest (QoI) to perturbations in a state/control-dependent component function that appears in the governing ODEs and the objective function. This extends existing OCP sensitivity results, which consider the sensitivity of the OCP solution with respect to state/control-independent parameters. It is shown that with Carathéodory-type assumptions, the Implicit Function Theorem …

If you are like me, then you might have installed the #GoogleAuthenticator app, back in the days when it was the only solution out there for #TOTP #2FA.
But that is long ago. Since …

The Generalized Fermat Equation $x^2 y^3 = z^{25}$
Nuno Freitas, Michael Stoll
https://arxiv.org/abs/2506.10667 https://arxiv.org/p…

The Generalized Fermat Equation $x^2 + y^3 = z^{25}$
We consider the generalized Fermat equation (*) $x^2 + y^3 = z^{25}$. Using the known parameterization of the primitive integral solutions to $x^2 + y^3 = z^5$ (due to Edwards), we reduce the solution of (*) to the solution of five specific equations of the form $H(u,v) = w^5$, where $H$ is homogeneous of degree $10$ with coefficients in a sextic number field $K$, $u$ and $v$ are coprime (rational) integers, and $w \in K$.