Tootfinder

Landgerichtsurteil: Wer haftet bei Phishing mit manipulierten E-Mails?
Das Landgericht Rostock hat klargestellt, wer bei einer "Fehlinformation" durch Phishing-Angriffe das Risiko einer falschen Überweisung einer Rechnung trägt.

Nordic Semiconductor acquires US startup Memfault, a cloud-based IoT lifecycle management and observability service that supports secure OTA updates, for $120M (Nick Flaherty/eeNews Europe)
https://www.eenewseurope.com/en/nordic-semi-buys-memfault-for-120m/

Nordic Semi buys Memfault for $120m
Nordic Semiconductor is buying US startup Memfault for $120m for its cloud-based software monitoring platform.

This https://arxiv.org/abs/2501.18584 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Corks, exotic 4-manifolds and genus functions
We prove that every 4-dimensional oriented handlebody without 3- and 4-handles can be modified to admit infinitely many exotic smooth structures, and further that their genus functions are pairwise equivalent. We furthermore show that, for any 4-manifold admitting an embedding into a symplectic 4-manifold with weakly convex boundary, its genus function is algebraically realized as those of infinitely many pairwise exotic 4-manifolds. We also prove that, for any two 4-manifolds with non-degenera…

M’enfin! Non, ce n’est pas l’IA qui ment et manipule… Mais apparemment ça joue.
https://www.rts.ch/info/sciences-tech/2025/article/l-ia-devient-menteuse-les-scientifiques-s-inquietent-des-no…

Irreversible dynamics on Poisson manifolds
Erwin Luesink
https://arxiv.org/abs/2506.22215 https://arxiv.org/pdf/2506.22215

Irreversible dynamics on Poisson manifolds
We present a geometric construction of irreversible dynamics on Poisson manifolds that satisfies the axioms of metriplectic mechanics and the GENERIC framework. Our approach relies solely on the underlying Poisson structure and its deformation theory, without requiring any additional metric structure. Specifically, we show that if the second Lichnerowicz-Poisson cohomology group of a Poisson manifold is nontrivial, one can construct a symmetric bracket that generates irreversible dynamics compa…

Aktuell wird eine Studie zitiert, dass Propagandawellen neu auch durch die «Umprogrammierung» von #KI-Chatbots passieren soll.
Im sogenannten AI Grooming werden abertausende Webseiten (mutmasslich auch von KI) verfasst, die in die Trainingsdaten der anderen KI-Modelle eindringen soll und diese so zu den gewünschten Aussagen verleiten sollen.
Die Studie sei overhyped, erklärt

🍮 Wissen zum Nachtisch: 🍨
Retröt: Der #Kapitalismus braucht für #Wachstum und #Gewinnmaximierung schier endlosen

Die Tricks der Verkäufer: So schützen Sie sich vor Manipulation
Verkäufertricks erkennen: Tipps und Tricks, wie Sie sich vor Manipulation schützen

Sam Altman: "What if an inhuman AI took control of the world by manipulating people's behavior but its core directive was to make paper clips and it burned down the planet to do that? This is so scary and it's a real thing you should be worried about!"
Governments: "Oh boy that's scary we'll make special rules to invest in your company so you can save us from this frightening possibility. Will we restrict or discourage AI use/development? Haha no that would be foolish!"
Me: "What if an inhuman handful of corporate charters took control of the world by manipulating human behavior but their core directive was to maximize venture capital and they burned down the planet to do that? ..."
Governments (sponsored by said corporations): "Send in the SWAT teams now, this idea is dangerous!"

Toroidal graph manifolds with small homology are not SU(2)-abelian
Giacomo Bascape
https://arxiv.org/abs/2506.21729 https://arxiv.org…

Toroidal graph manifolds with small homology are not SU(2)-abelian
We show that if $Y$ is a toroidal closed graph manifold rational homology $3$-sphere with $|H_1(Y;\mathbb{Z})| \le 5$, then there exists an irreducible representation $\fund{Y} \to SU(2)$. This answers positively to a conjecture by Baldwin and Sivek in the case of graph manifolds.

A cut-and-paste mechanism to introduce fundamental group and construct new four-manifolds
Valentina Bais, Rafael Torres
https://arxiv.org/abs/2505.23167 ht…

A cut-and-paste mechanism to introduce fundamental group and construct new four-manifolds
We introduce a simple cut-and-paste mechanism to construct both orientable and nonorientable four-manifolds from a given initial one. This mechanism alters the fundamental group while preserving other essential topological invariants. It avoids codimension two cut-and-paste fundamental group computations and fast tracks the search for fixed-point free involutions. The mechanism proves useful to unveil novel exotic irreducible smooth structures on closed four-manifolds with finite cyclic fundame…