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@arXiv_mathDG_bot@mastoxiv.page
2025-09-24 08:44:54

On the problem of filling by a Poincar\'e-Einstein metric in dimension 4
Sun-Yung Alice Chang, Yuxin Ge
arxiv.org/abs/2509.18430 arxiv.…

On the problem of filling by a Poincaré-Einstein metric in dimension 4
Given a metric defined on a manifold of dimension three, we study the problem of finding a conformal filling by a Poincaré-Einstein metric on a manifold of dimension four. We establish a compactness result for classes of conformally compact Einstein $4$-manifolds under conformally invariant conditions. A key step in the proof is a result of rigidity for the hyperbolic metric on $\mathbb {B}^4$ or $ S^1 \times \mathbb{B}^3$. As an application, we also derive some existence results of conforma…

@ErikUden@mastodon.de
2025-12-22 15:54:51

“You didn't give me the cheat codes to 100% manipulate women into liking me, therefore I became a misogynist bigot who hates women and it's YOUR fault.”

A screenshot of Adam Something called “The Left Created Andrew Tate (by ignoring Young Men)
A comic by Bors making fun of men who claim other people are the reason they became a fascist.
@arXiv_hepth_bot@mastoxiv.page
2025-09-24 09:47:04

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

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…

@arXiv_csRO_bot@mastoxiv.page
2025-09-24 10:43:44

Pure Vision Language Action (VLA) Models: A Comprehensive Survey
Dapeng Zhang, Jin Sun, Chenghui Hu, Xiaoyan Wu, Zhenlong Yuan, Rui Zhou, Fei Shen, Qingguo Zhou
arxiv.org/abs/2509.19012

Pure Vision Language Action (VLA) Models: A Comprehensive Survey
The emergence of Vision Language Action (VLA) models marks a paradigm shift from traditional policy-based control to generalized robotics, reframing Vision Language Models (VLMs) from passive sequence generators into active agents for manipulation and decision-making in complex, dynamic environments. This survey delves into advanced VLA methods, aiming to provide a clear taxonomy and a systematic, comprehensive review of existing research. It presents a comprehensive analysis of VLA application…

@midtsveen@social.linux.pizza
2025-11-23 21:17:37

If you disagree, I respect that, but I am personally a victim of this kind of dictionary manipulation and distortion. It is deeply frustrating to see definitions twisted and weaponized against me, and the true meaning of syndicalism, as if bending language could erase its real principles and goals. This kind of intellectual dishonesty is not only misleading but also personally disempowering for those of us who stand for genuine social change.
I advocate for the collectivization of land…

@arXiv_mathDS_bot@mastoxiv.page
2025-09-24 08:29:04

Lipschitz Continuity and Formulas of the Gradient Vector of the SRB Entropy Functional
Jianyu Chen, Miaohua Jiang
arxiv.org/abs/2509.18596 …

Lipschitz Continuity and Formulas of the Gradient Vector of the SRB Entropy Functional
The Sobolev embedding theorem implies that the SRB entropy functional is also differentiable in the family of Anosov diffeomorphisms equipped with a suitable Hilbert manifold structure. The same holds true for the SRB entropy functional over the family of smooth expanding maps on a closed Riemannian manifold. This implication leads to the local existence of the gradient flow of the SRB entropy and an explicit formula for the gradient vector of the entropy functional via the linear response of t…

@arXiv_mathAT_bot@mastoxiv.page
2025-09-24 07:46:44

Framed configuration spaces and exotic spheres
Manuel Krannich, Alexander Kupers, Fadi Mezher
arxiv.org/abs/2509.19074 arxiv.org/pdf/2509.1…

Framed configuration spaces and exotic spheres
We determine when an exotic sphere $Σ$ of dimension $d\not{\equiv }1\pmod{4}$ can be detected through the homotopy type of its truncated Disc-presheaf. The latter records the diagram of framed configuration spaces of bounded cardinality in $Σ$ with natural point-forgetting and -splitting maps between them. Our proof involves three ingredients that could be of independent interest: a gluing result for Disc-presheaves of manifolds divided into two codimension zero submanifolds, a version of Ati…

@arXiv_mathDG_bot@mastoxiv.page
2025-09-24 09:42:24

Heat kernel asymptotics and analytic torsion on non-degenerate CR manifolds
Chin-Yu Hsiao, Rung-Tzung Huang, Guokuan Shao
arxiv.org/abs/2509.19167

Heat kernel asymptotics and analytic torsion on non-degenerate CR manifolds
Let $X$ be a compact oriented CR manifold of dimension $2n+1$, $n \ge 1$, with a nondegenerate Levi form of constant signature $(n_-, n_+)$. Suppose that condition $Y(q)$ holds at each point of $X$, we establish the small time asymptotics of the heat kernel of Kohn Laplacian. Suppose that condition $Y(q)$ fails, we establish the small time asymptotics of the kernel of the difference of the heat operator and Szegő projector. As an application we define the analytic torsion on a compact oriented…

@arXiv_csRO_bot@mastoxiv.page
2025-09-24 10:53:44

MagiClaw: A Dual-Use, Vision-Based Soft Gripper for Bridging the Human Demonstration to Robotic Deployment Gap
Tianyu Wu, Xudong Han, Haoran Sun, Zishang Zhang, Bangchao Huang, Chaoyang Song, Fang Wan
arxiv.org/abs/2509.19169

MagiClaw: A Dual-Use, Vision-Based Soft Gripper for Bridging the Human Demonstration to Robotic Deployment Gap
The transfer of manipulation skills from human demonstration to robotic execution is often hindered by a "domain gap" in sensing and morphology. This paper introduces MagiClaw, a versatile two-finger end-effector designed to bridge this gap. MagiClaw functions interchangeably as both a handheld tool for intuitive data collection and a robotic end-effector for policy deployment, ensuring hardware consistency and reliability. Each finger incorporates a Soft Polyhedral Network (SPN) with an embedd…

@arXiv_csRO_bot@mastoxiv.page
2025-09-24 10:42:14

Category-Level Object Shape and Pose Estimation in Less Than a Millisecond
Lorenzo Shaikewitz, Tim Nguyen, Luca Carlone
arxiv.org/abs/2509.18979

Category-Level Object Shape and Pose Estimation in Less Than a Millisecond
Object shape and pose estimation is a foundational robotics problem, supporting tasks from manipulation to scene understanding and navigation. We present a fast local solver for shape and pose estimation which requires only category-level object priors and admits an efficient certificate of global optimality. Given an RGB-D image of an object, we use a learned front-end to detect sparse, category-level semantic keypoints on the target object. We represent the target object's unknown shape using…