Searcharxiv⌕ Search

arXiv · 2610.27809

Non-null ruled surfaces and pseudo hyper-dual tangent sphere bundles

Abstract

In this paper, the tangent bundles of hyper-dual pseudo spheres are defined. Then, a new family of non-null ruled surfaces associated with hyper-dual Lorentzian curves is defined via the E.Study hyper-map in Minkowski space and the definitions of the tangent bundles of hyper-dual pseudo spheres. Within this framework, the resulting non-null ruled surfaces are classified. Necessary and sufficient conditions for developability are obtained with their geometric interpretations in terms of hyper-dual Lorentzian curves and arc-length parameters. Moreover, explicit examples are presented to verify the theoretical results.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Emel Karaca, Senem Öztürk. 2026-10-20. Non-null ruled surfaces and pseudo hyper-dual tangent sphere bundles. https://arxiv.org/abs/2610.27809

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related papers

Spectral and Schrödinger estimates restricted to submanifolds

Let $M$ be a complete Riemannian manifold with nonpositive sectional curvature and smooth bounded geometry. We prove logarithmic spectral projection estimates restricted to uniformly embedded submanifolds. On surfaces with pinched negative curvature, we also prove frequency-independent $L^2\to L^3$ Schrödinger restriction estimates on compact geodesic segments for times $cλ^{-1}\logλ$. If such a surface is even asymptotically hyperbolic, the $L^2\to L^q$ spectral estimates on complete nontrapped geodesics, for $q>2$, gain the square root of the window width. The high-frequency Schrödinger estimate holds for all times on these surfaces, both on compact segments and on complete nontrapped geodesics. Under a regularity assumption at the spectral threshold, the all-time estimate holds on the absolutely continuous spectral subspace.

math.DG↗

Properties of Holomorphic $p$-Contact Manifolds

We continue the study of compact holomorphic $p$-contact manifolds $X$ that we introduced recently by expanding the discussion to include non-Kähler hyperbolicity issues and a differential calculus based on what we call the Lie derivative with respect to a $(0,\,q)$-form with values in the holomorphic tangent bundle of $X$. We also propose the notion of $p$-contact deformations for which we prove a Bogomolov-Tian-Todorov-type unobstructedness theorem to order two. This kind of small deformations of the complex structure is related to the essential horizontal deformations that we introduced in our previous work and forms part of a wider on-going project aimed at developing a non-Kähler mirror symmetry theory that was first tested on the Iwasawa manifold and subsequently on Calabi-Yau page-$1$-$\partial\bar\partial$-manifolds.

math.DG↗