Results 31 to 40 of about 3,864,161 (223)

On the Weyl Problem in Minkowski Space [PDF]

open access: yesInternational Mathematics Research Notices, 2021
Abstract Let $S$ be a closed surface of hyperbolic type. We show that, for every pair $(g_+,g_-)$ of negatively curved metrics over $S$, there exists a unique globally hyperbolic, maximal, and Cauchy compact Minkowski spacetime $X$ into which $(S,g_+)$ and $(S,g_-)$ isometrically embed as Cauchy surfaces in the future and past components,
openaire   +2 more sources

Characterizations of Some Special Space-like Curves in Minkowski Space-time [PDF]

open access: yes, 2008
In this work, a system of differential equation on Minkowski space-time, a special case of Smarandache geometries, whose solution gives the components of a space-like curve on Frenet axis is constructed by means of Frenet equations.
Turgut, Melih, Yilmaz, Suha
core   +1 more source

Null Darboux Curve Pairs in Minkowski 3-Space

open access: yesAxioms, 2021
Based on the fundamental theories of null curves in Minkowski 3-space, the null Darboux mate curves of a null curve are defined which can be regarded as a kind of extension for Bertrand curves and Mannheim curves in Minkowski 3-space.
Jinhua Qian   +3 more
doaj   +1 more source

Some Remarks on Harmonic Functions in Minkowski Spaces

open access: yesMathematics, 2019
We prove that in Minkowski spaces, a harmonic function does not necessarily satisfy the mean value formula. Conversely, we also show that a function satisfying the mean value formula is not necessarily a harmonic function.
Songting Yin
doaj   +1 more source

Geometry of Simplices in Minkowski Spaces [PDF]

open access: yesResults in Mathematics, 2018
There are many problems and configurations in Euclidean geometry that were never extended to the framework of (normed or) finite dimensional real Banach spaces, although their original versions are inspiring for this type of generalization, and the analogous definitions for normed spaces represent a promising topic.
Leopold, Undine, Martini, Horst
openaire   +3 more sources

On the Time-like Curves of Constant Breadth in Minkowski 3-Space [PDF]

open access: yes, 2008
A regular curve with more than 2 breadths in Minkowski 3-space is called a Smarandache breadth curve. In this paper, one studies a special case of Smarandache breadth curves. Some characterizations of the time-like curves of constant breadth in Minkowski
Yilmaz, Suha, Turgut, Melih
core   +1 more source

A New Angular Measurement in Minkowski 3-Space

open access: yesMathematics, 2020
In Lorentz−Minkowski space, the angles between any two non-null vectors have been defined in the sense of the angles in Euclidean space. In this work, the angles relating to lightlike vectors are characterized by the Frenet frame of a pseudo null ...
Jinhua Qian   +3 more
doaj   +1 more source

A-topology for Minkowski space [PDF]

open access: yesThe Journal of the Australian Mathematical Society. Series B. Applied Mathematics, 1979
AbstractWe consider in this paper a topology (which we call the A-topology) on Minkowski space, the four-dimensional space–time continuum of special relativity and derive its group of homeomorphisms. We define the A-topology to be the finest topology on Minkowski space with respect to which the induced topology on time-like and light-like lines is one ...
openaire   +1 more source

Structural explanations in Minkowski spacetime: which account of models? [PDF]

open access: yes, 2010
In this paper we argue that structural explanations are an effective way of explaining well known relativistic phenomena like length contraction and time dilation, and then try to understand how this can be possible by looking at the literature on ...
Felline, Laura   +4 more
core   +1 more source

Evolutoids and pedaloids of frontals on timelike surfaces

open access: yesOpen Mathematics, 2023
In this article, we define evolutoids and pedaloids of frontals on timelike surfaces in Minkowski 3-space. The evolutoids of frontals on timelike surfaces are not only the generalization of evolutoids of curves in the Minkowski plane but also the ...
Wang Yongqiao   +3 more
doaj   +1 more source

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