Results 41 to 50 of about 3,164,312 (366)

Geometry of Convex Geometries

open access: yesDiscrete & Computational Geometry
21 pages, 2 ...
Jérémie Chalopin   +2 more
openaire   +2 more sources

The Generalised Complex Geometry of $(p,q)$ Hermitian Geometries [PDF]

open access: yes, 2018
We define $(p,q)$ hermitian geometry as the target space geometry of the two dimensional $(p,q)$ supersymmetric sigma model. This includes generalised K\"{a}hler geometry for $(2,2)$, generalised hyperk\"{a}hler geometry for $(4,2)$, strong K\"{a}hler with torsion geometry for $(2,1)$ and strong hyperk\"{a}hler with torsion geometry for $(4,1)$.
arxiv   +1 more source

Dagger Geometry As Banach Algebraic Geometry

open access: yes, 2015
In this article, we apply the approach of relative algebraic geometry towards analytic geometry to the category of bornological and Ind-Banach spaces (non-Archimedean or not).
Bambozzi, Federico, Ben-Bassat, Oren
core   +1 more source

Geometry without topology as a new conception of geometry [PDF]

open access: yes, 2001
A geometric conception is a method of a geometry construction. The Riemannian geometric conception and a new T-geometric one are considered. T-geometry is built only on the basis of information included in the metric (distance between two points).
Rylov, Yuri A.
core   +4 more sources

Dynamics of a Modified Sprott A System [PDF]

open access: yesITM Web of Conferences
We examine a modified Sprott A system, one of the 17 chaotic systems without equilibria introduced by Jafari, Sprott, and Golpayegani (2013). For specific parameter values, the modified system exhibits invariant spheres.
Rohman Muhammad Nuur   +2 more
doaj   +1 more source

Smart Topology Optimization Using Adaptive Neighborhood Simulated Annealing

open access: yesApplied Sciences, 2021
Topology optimization (TO) of engineering products is an important design task to maximize performance and efficiency, which can be divided into two main categories of gradient-based and non-gradient-based methods.
Hossein R. Najafabadi   +5 more
doaj   +1 more source

Octonionic Geometry

open access: yes, 2004
We extend vector formalism by including it in the algebra of split octonions, which we treat as the universal algebra to describe physical signals. The new geometrical interpretation of the products of octonionic basis units is presented.
Gogberashvili, Merab
core   +1 more source

Relativistic Acoustic Geometry [PDF]

open access: yes, 1999
Sound wave propagation in a relativistic perfect fluid with a non-homogeneous isentropic flow is studied in terms of acoustic geometry. The sound wave equation turns out to be equivalent to the equation of motion for a massless scalar field propagating ...
(Visser M   +14 more
core   +3 more sources

Information geometry encoded in bulk geometry [PDF]

open access: yesJournal of High Energy Physics, 2020
Abstract We study how information geometry is described by bulk geometry in the gauge/gravity correspondence. We consider a quantum information metric that measures the distance between the ground states of a CFT and a theory obtained by perturbing the CFT.
Tsuchiya, Asato, Yamashiro, Kazushi
openaire   +5 more sources

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

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