Results 131 to 140 of about 4,823,150 (306)

Asymptotic Stability of Minkowski Space-Time with Non-compactly Supported Massless Vlasov Matter. [PDF]

Arch Ration Mech Anal, 2021
Bigorgne L, Fajman D, Joudioux J, Smulevici J, Thaller M.   +4 more
europepmc   +1 more source

Benchmarking Contact Detection Algorithms Used in Polyhedral Particle System

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 1, Page 53-64, January 2026.
ABSTRACT A critical assessment of contact detection algorithms routinely used for simulating convex polyhedra in the Discrete Element Method is presented herein. Specifically, we focus on accuracy and computational efficiency and discuss the advantages and limitations of four different algorithms: the coupled Gilbert–Johnson–Keerthi – Expanding ...
Yuval Keissar, Michael Gardner, Nicholas Sitar   +2 more
wiley   +1 more source

Ruled Surfaces and Their Geometric Invariants via the Orthogonal Modified Frame in Minkowski 3-Space

Mathematics
Ruled surfaces in Minkowski 3-space play a crucial role in differential geometry and have significant applications in physics and engineering. This study explores the fundamental properties of ruled surfaces via orthogonal modified frame in Minkowski ...
Emad Solouma, Ibrahim Al-Dayel, Mohamed A. Abdelkawy   +2 more
doaj   +1 more source

New upper bound for lattice covering by spheres

Mathematika, Volume 72, Issue 1, January 2026.
Abstract We show that there exists a lattice covering of Rn$\mathbb {R}^n$ by Euclidean spheres of equal radius with density O(nlnβn)$O\big (n \ln ^{\beta } n \big)$ as n→∞$n\rightarrow \infty$, where β≔12log28πe33=1.85837….$$\begin{align*} \beta \coloneqq \frac{1}{2} \log _2 {\left(\frac{8 \pi \mathrm{e}}{3\sqrt 3}\right)}=1.85837\,\ldots . \end{align*
Jun Gao, Xizhi Liu, Oleg Pikhurko, Shumin Sun   +3 more
wiley   +1 more source

Elastic Sturmian spirals in the Lorentz-Minkowski plane

Open Mathematics, 2016
In this paper we consider some elastic spacelike and timelike curves in the Lorentz-Minkowski plane and obtain the respective vectorial equations of their position vectors in explicit analytical form.
Uçum Ali, İlarslan Kazım, Mladenov Ivaïlo M.   +2 more
doaj   +1 more source

Relatively normal-slant helices in Minkowski $3$-space [PDF]

, 2022
Akhılesh Yadav, Ajay Yadav
openalex   +1 more source

4D Gravity on a Brane in 5D Minkowski Space [PDF]

, 2000
G. Dvali, G. Gabadadze, M. Porrati
semanticscholar   +1 more source

Influence of Cloud Microphysical Properties on Airborne Lidar Measurements: Results From the IMPACTS Field Campaign

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 23, 16 December 2025.
Abstract Ice‐ and mixed‐phase clouds play an important role in the global radiative budget and hydrological cycle, yet the complexity of ice crystal shapes and the presence of supercooled liquid water (SCLW) present challenges for retrieving cloud properties from airborne and spaceborne remote sensing instruments.
Joseph A. Finlon, John E. Yorks, Shawn Wagner, Christian M. Nairy, Patrick Selmer, Edward P. Nowottnick, David J. Delene, Lynn A. McMurdie   +7 more
wiley   +1 more source

On the marginally trapped surfaces in Minkowski space-time with finite type Gauss map [PDF]

, 2013
Nurettin Cenk Turgay
openalex   +1 more source

Enhanced Multitask Learning with Attention Sparse Routing Mechanism for Intelligent Diabetes Prediction

Advanced Intelligent Systems, Volume 7, Issue 12, December 2025.
The model leverages patient time‐space information for pattern feature representations. Encoders extract first and second‐order features, aggregated with categorical embeddings and dense features. Task‐specific and shared experts use gated networks, with a dispatch layer routing information for diabetes risk evaluation and blood glucose prediction ...
Yingshuai Wang, Hongpu Hu, Liqin Xie, Qingkun Chen, Xingyun Lei, Panpan Qin, Yan Wang, Xing Gao, Yanli Wan   +8 more
wiley   +1 more source