Tootfinder

Können wir uns darauf einigen, dass Trump zwar Präsident ist, aber kein Politiker, sondern ein Massenmörder bzw. nach Definition der UN von Völkermord einen andauernden Völkermord begeht?

Können wir uns darauf einigen, dass Trump zwar Präsident ist, aber kein Politiker, sondern ein Massenmörder bzw. nach Definition der UN von Völkermord einen andauernden Völkermord begeht?

Generalized Momenta-Based Koopman Formalism for Robust Control of Euler-Lagrangian Systems
Rajpal Singh, Aditya Singh, Chidre Shravista Kashyap, Jishnu Keshavan
https://arxiv.org/abs/2509.17010

Generalized Momenta-Based Koopman Formalism for Robust Control of Euler-Lagrangian Systems
This paper presents a novel Koopman operator formulation for Euler Lagrangian dynamics that employs an implicit generalized momentum-based state space representation, which decouples a known linear actuation channel from state dependent dynamics and makes the system more amenable to linear Koopman modeling. By leveraging this structural separation, the proposed formulation only requires to learn the unactuated dynamics rather than the complete actuation dependent system, thereby significantly r…

Convexity and the degenerate special Lagrangian equation
Vasanth Pidaparthy, Yanir A. Rubinstein
https://arxiv.org/abs/2507.17018 https://arxiv.org/pdf/250…

Convexity and the degenerate special Lagrangian equation
In 2015 Rubinstein--Solomon introduced the degenerate special Lagrangian equation (DSL) that governs geodesics in the space of positive Lagrangians, showed that subsolutions in the top branch of DSL are convex in space, and raised the question of whether they should be convex in space-time and whether subsolutions in the second branch possess any convexity properties. In 2019, Darvas--Rubinstein gave a partial answer to the first problem by showing subsolutions in the top branch must be bi-conv…

Non-Lagrangian phases of matter from Wilsonian renormalization of 3D Wess-Zumino-Witten theory on Stiefel manifolds
Shouryya Ray
https://arxiv.org/abs/2509.18966 https://…

Non-Lagrangian phases of matter from Wilsonian renormalization of 3D Wess-Zumino-Witten theory on Stiefel manifolds
I study the renormalization of D-dimensional level-k Wess-Zumino-Witten theory with Stiefel-manifold target space $\mathrm{St}_{N,N-D-1} \cong \mathrm{SO}(N)/\mathrm{SO}(D+1)$, with a particular focus on $D = 3$. I investigate in particular whether such a theory admits IR-stable fixed points of the renormalization group flow. Such fixed points have been suggested to describe conformal phases of matter that do not have a known dual (super-)renormalizable Lagrangian for $N \geq 7$ in $D = 3$. The…

"This title is reasonable" – a commentary on LW, speaking to the title of the book "If Anyone Builds It, Everyone Dies"
https://www.lesswrong.com/posts/voEAJ9nFBAqau8pNN/the-title-is-reasonable
(audio: 28min)
I've read …

The title is reasonable — LessWrong
Alt title: "I don't believe you that you actually disagree particularly with the core thesis of the book, if you pay attention to what it actually sa…

Exact Lagrangian fillability of 3-braid closures
James Hughes, Jiajie Ma
https://arxiv.org/abs/2507.16747 https://arxiv.org/pdf/2507.16747

Exact Lagrangian fillability of 3-braid closures
We determine when a Legendrian quasipositive 3-braid closure in standard contact $\mathbb{R}^3$ admits an orientable or non-orientable exact Lagrangian filling. Our main result provides evidence for the orientable fillability conjecture of Hayden and Sabloff, showing that a 3-braid closure is orientably exact Lagrangian fillable if and only if it is quasipositive and the HOMFLY bound on its maximum Thurston-Bennequin number is sharp. Of possible independent interest, we construct explicit Legen…

Strengthening the Bridge Between Chiral Lagrangians and QCD Sum-Rules
J. Ho, Amir H. Fariborz, T. G. Steele
https://arxiv.org/abs/2509.16380 https://arxiv.…

Strengthening the Bridge Between Chiral Lagrangians and QCD Sum-Rules
Previous work has shown that mesonic fields in chiral Lagrangians can be systematically connected to quark-level operators in QCD sum rules through chiral-symmetry constrained and energy-independent scale factor matrices. This framework yields universal scale factors associated with each chiral nonet, whether composed of quark-antiquark ($q\bar{q}$) or four-quark ($qq\bar{q}\bar{q}$) operators. Building on the demonstrated scale-factor universality for the $K_0^*$ isodoublet and $a_0$ isotriple…

Conditionally adaptive augmented Lagrangian method for physics-informed learning of forward and inverse problems using artificial neural networks
Qifeng Hu, Shamsulhaq Basir, Inanc Senocak
https://arxiv.org/abs/2508.15695

Conditionally adaptive augmented Lagrangian method for physics-informed learning of forward and inverse problems using artificial neural networks
We present several advances to the physics and equality constrained artificial neural networks (PECANN) framework that substantially improve its capability to learn solutions of canonical partial differential equations (PDEs). First, we generalize the augmented Lagrangian method (ALM) to support multiple independent penalty parameters, enabling simultaneous enforcement of heterogeneous constraints. Second, we reformulate pointwise constraint enforcement and Lagrange multipliers as expectations …

A general action for a particle in 2 1 anti-de Sitter space
Carles Batlle, Joaquim Gomis
https://arxiv.org/abs/2509.18959 https://arxiv.org/pdf/2509.18959