Results 121 to 130 of about 2,094,916 (148)

Multi-Layer Autocatalytic Feedback Enables Integral Control Amidst Resource Competition and Across Scales. [PDF]

ACS Synth Biol
M Zand A, Anastassov S, Frei T, Khammash M.   +3 more
europepmc   +1 more source

Homothetic Transformations in Finsler Spaces

Homothetic Transformations in Finsler Spaces
openaire  

Statistical Mechanics of Electrowetting. [PDF]

Entropy (Basel)
Louge MY, Wang Y.
europepmc   +1 more source

Advanced intensity-modulated fiber sensors for scalable sensing. [PDF]

iScience
Malinka F, Vachek O, Krizan D, Stipal J, Marques C, Siska P, Nedoma J.   +6 more
europepmc   +1 more source

Two-scale Phenomenological and Statistical Analysis of the COVID-19 Pandemic

, 2020
Pontikis V, Karakostas T, Komninou P.
europepmc   +1 more source

Empty spaces and perfect fluids with homothetic transformation

General Relativity and Gravitation, 1982
A class of Lorentzian metrics in one variable that admits homothetic transformation is introduced. Solutions of Einstein's empty space equations are presented. The case of perfect fluids is discussed.
Robert Debever, Niky Kamran
semanticscholar   +4 more sources

D-Homothetic Transforms of φ-Symmetric Spaces

Mediterranean Journal of Mathematics, 2013
The open problem about the existence of an example of a non-Sasakian strongly locally \(\varphi\)-symmetric space apart from the contact metric \((\kappa,\mu)\)-spaces is considered. At present, the answer is known to be negative for three-dimensional contact metric spaces, left-invariant contact metric structures on Lie groups, strongly pseudoconvex ...
Boeckx, Eric, Cho, Jong Taek
openaire   +2 more sources

Geometric loci and homothetic transformations

International Journal of Mathematical Education in Science and Technology, 2013
In this paper, we use a property of the centroids to study two general types of geometric loci: one in the plane and one in the space. Then from this result, we examine in detail the case of quadrilaterals and tetrahedra and, in particular, we determine some properties of the nine-point circle of a triangle. The study of those geometric loci is carried
Daniela Ferrarello, Maria Flavia Mammana, Mario Pennisi   +2 more
openalex   +2 more sources

Homothetic transformations with fixed points in spacetime

General Relativity and Gravitation, 1988
Verf. zeigt, daß die Fixpunkte der durch einen homothetischen Vektor erzeugten einparametrigen lokalen Transformationsgruppe entweder Teile von Null-Geodäten bilden oder aber isoliert sind. Im ersten Fall - so wird weiterhin bewiesen - ist die Raum-Zeit vom Typ einer verallemeinerten ebenen Welle mit einer fünfparametrigen lokalen Isometriegruppe ...
G. S. Hall
openalex   +2 more sources