Results 31 to 40 of about 9,168 (183)

50 Years of quantum chromodynamics

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
Quantum Chromodynamics, the theory of quarks and gluons, whose interactions can be described by a local SU(3) gauge symmetry with charges called “color quantum numbers”, is reviewed; the goal of this review is to provide advanced Ph.D.
Franz Gross   +94 more
doaj   +1 more source

Fermion dark matter in gauge-Higgs unification

open access: yesJournal of High Energy Physics, 2017
We propose a Majorana fermion dark matter in the context of a simple gauge-Higgs Unification (GHU) scenario based on the gauge group SU(3)×U(1)′ in 5-dimensional Minkowski space with a compactification of the 5th dimension on S 1/Z 2 orbifold.
Nobuhito Maru   +3 more
doaj   +1 more source

Simple proofs for Furstenberg sets over finite fields

open access: yesDiscrete Analysis, 2021
Simple proofs for Furstenberg sets over finite fields, Discrete Analysis 2021:22, 16 pp. A _Kakeya set_ in $\mathbb R^2$ is a subset that contains a unit line segment in every direction.
Manik Dhar, Zeev Dvir, Benjamin Lund
doaj   +1 more source

Special Smarandache Curves in the Euclidean Space [PDF]

open access: yes, 2010
In this work, we introduce some special Smarandache curves in the Euclidean space. We study Frenet-Serret invariants of a special case.
Ali, Ahmad
core   +1 more source

The equivariant minkowski problem in minkowski space [PDF]

open access: yes, 2017
The classical Minkowski problem in Minkowski space asks, for a positive function $\phi$ on $\mathbb{H}^d$, for a convex set $K$ in Minkowski space with $C^2$ space-like boundary $S$, such that $\phi(\eta)^{-1}$ is the Gauss--Kronecker curvature at the ...
Bonsante, Francesco   +3 more
core   +1 more source

An Approach for Indoor Path Computation among Obstacles that Considers User Dimension

open access: yesISPRS International Journal of Geo-Information, 2015
People often transport objects within indoor environments, who need enough space for the motion. In such cases, the accessibility of indoor spaces relies on the dimensions, which includes a person and her/his operated objects.
Liu Liu, Sisi Zlatanova
doaj   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi   +4 more
wiley   +1 more source

Risk‐aware safe reinforcement learning for control of stochastic linear systems

open access: yesAsian Journal of Control, EarlyView.
Abstract This paper presents a risk‐aware safe reinforcement learning (RL) control design for stochastic discrete‐time linear systems. Rather than using a safety certifier to myopically intervene with the RL controller, a risk‐informed safe controller is also learned besides the RL controller, and the RL and safe controllers are combined together ...
Babak Esmaeili   +2 more
wiley   +1 more source

Promoting the Mathematization of Physics: Hermann Minkowski's Draft Presentations of His 1908 “Grundgleichungen” Paper

open access: yesBerichte zur Wissenschaftsgeschichte, EarlyView.
I present and discuss two drafts of remarks prepared by the mathematician Hermann Minkowski (1864–1909). They were composed in December 1907 while preparing his paper on the “Basic Equations of Electromagnetic Processes in Moving Bodies” for publication in the Proceedings of the Göttingen Academy of Sciences.
Tilman Sauer
wiley   +1 more source

The Benjamin–Ono Equation in the Zero‐Dispersion Limit for Rational Initial Data: Generation of Dispersive Shock Waves

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT The leading‐order asymptotic behavior of the solution of the Cauchy initial‐value problem for the Benjamin–Ono equation in L2(R)$L^2(\mathbb {R})$ is obtained explicitly for generic rational initial data u0$u_0$. An explicit asymptotic wave profile uZD(t,x;ε)$u^\mathrm{ZD}(t,x;\epsilon)$ is given, in terms of the branches of the multivalued ...
Elliot Blackstone   +3 more
wiley   +1 more source

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