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Mirror Descent and Exponentiated Gradient Algorithms Using Trace-Form Entropies [PDF]

open access: yesEntropy
This paper introduces a broad class of Mirror Descent (MD) and Generalized Exponentiated Gradient (GEG) algorithms derived from trace-form entropies defined via deformed logarithms. Leveraging these generalized entropies yields MD and GEG algorithms with
Andrzej Cichocki   +3 more
doaj   +2 more sources

NeutroGeometry & AntiGeometry are alternatives and generalizations of the Non-Euclidean Geometries [PDF]

open access: yesNeutrosophic Sets and Systems, 2021
In this paper we extend the NeutroAlgebra & AntiAlgebra to the geometric spaces, by founding the NeutroGeometry & AntiGeometry.
Florentin Smarandache
doaj   +1 more source

Real Examples of NeutroGeometry & AntiGeometry [PDF]

open access: yesNeutrosophic Sets and Systems, 2023
For the classical Geometry, in a geometrical space, all items (concepts, axioms, theorems, etc.) are totally (100%) true. But, in the real world, many items are not totally true. The NeutroGeometry is a geometrical space that has some items that are only
Florentin Smarandache
doaj   +1 more source

THE COMMON EVOLUTION OF GEOMETRY AND ARCHITECTURE FROM A GEODETIC POINT OF VIEW [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Throughout history the link between geometry and architecture has been strong and while architects have used mathematics to construct their buildings, geometry has always been the essential tool allowing them to choose spatial shapes which are ...
T. Bellone, F. Fiermonte, L. Mussio
doaj   +1 more source

The Digital Paradigm in Contemporary Architecture

open access: yesimg journal, 2023
The architecture of the 20th century has been largely affected by changes in the field of technology. In particular, the evolution of digital representation has led to new visions of contemporary architectural space. Expressive freedoms, which in the pre-
Domenico Mediati
doaj   +1 more source

HERBRAND’S THEOREM AND NON-EUCLIDEAN GEOMETRY [PDF]

open access: yesThe Bulletin of Symbolic Logic, 2015
AbstractWe use Herbrand’s theorem to give a new proof that Euclid’s parallel axiom is not derivable from the other axioms of first-order Euclidean geometry. Previous proofs involve constructing models of non-Euclidean geometry. This proof uses a very old and basic theorem of logic together with some simple properties of ruler-and-compass constructions ...
Beeson, Michael   +2 more
openaire   +4 more sources

Liquid crystal director fields in three-dimensional non-Euclidean geometries

open access: yesNew Journal of Physics, 2020
This paper investigates nematic liquid crystals in three-dimensional curved space, and determines which director deformation modes are compatible with each possible type of non-Euclidean geometry. Previous work by Sethna et al showed that double twist is
Jean-François Sadoc   +2 more
doaj   +1 more source

On the Euclidean action of de Sitter black holes and constrained instantons

open access: yesSciPost Physics, 2023
We compute the on-shell Euclidean action of Schwarzschild-de Sitter black holes, and take their contributions in the gravitational path integral into account using the formalism of constrained instantons.
Edward K. Morvan, Jan Pieter van der Schaar, Manus R. Visser
doaj   +1 more source

KdV-charged black holes

open access: yesJournal of High Energy Physics, 2020
We construct black hole geometries in AdS3 with non-trivial values of KdV charges. The black holes are holographically dual to quantum KdV Generalized Gibbs Ensemble in 2d CFT.
Anatoly Dymarsky, Sotaro Sugishita
doaj   +1 more source

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