Results 31 to 40 of about 2,302,459 (290)

Differential geometry of group lattices [PDF]

open access: yesJournal of Mathematical Physics, 2003
In a series of publications we developed “differential geometry” on discrete sets based on concepts of noncommutative geometry. In particular, it turned out that first-order differential calculi (over the algebra of functions) on a discrete set are in bijective correspondence with digraph structures where the vertices are given by the elements of the ...
Dimakis, A., Muller-Hoissen, F.
openaire   +3 more sources

Differential Geometry of Ice Flow

open access: yesFrontiers in Earth Science, 2018
Flowlines on ice sheets and glaciers form complex patterns. To explore their role in ice routing and extend the language for studying such patterns, we develop a theory of flow convergence and curvature in plan view.
Felix S. L. Ng   +2 more
doaj   +1 more source

Multiview Differential Geometry of Curves [PDF]

open access: yesInternational Journal of Computer Vision, 2016
International Journal of Computer Vision Final Accepted version. International Journal of Computer Vision, 2016.
Ricardo Fabbri, Benjamin B. Kimia
openaire   +4 more sources

Explicit Information Geometric Calculations of the Canonical Divergence of a Curve

open access: yesMathematics, 2022
Information geometry concerns the study of a dual structure (g,∇,∇*) upon a smooth manifold M. Such a geometry is totally encoded within a potential function usually referred to as a divergence or contrast function of (g,∇,∇*).
Domenico Felice, Carlo Cafaro
doaj   +1 more source

Dynamic Differential Geometry in Education

open access: yes, 2009
We present an augmented reality application which introduces differential geometry in educational dynamic geometry software. New functionality such as a Frenet frame, center and circle of curvature in arbitrary curve points, and others were ...
Kaufmann, Hannes
core   +4 more sources

A primer on exterior differential calculus [PDF]

open access: yesTheoretical and Applied Mechanics, 2003
A pedagogical application-oriented introduction to the cal­culus of exterior differential forms on differential manifolds is presented. Stokes' theorem, the Lie derivative, linear con­nections and their curvature, torsion and non-metricity are discussed.
Burton D.A.
doaj   +1 more source

Analytical ruled surfaces and their complete classification

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2020
The aim of the work - to give the possibility to expand mind of designers and architects projecting structures in the form of traditional and non-canonical ruled surfaces.
Sergey N. Krivoshapko
doaj   +1 more source

Poisson algebras via model theory and differential-algebraic geometry [PDF]

open access: yes, 2017
Brown and Gordon asked whether the Poisson Dixmier–Moeglin equivalence holds for any complex affine Poisson algebra, that is, whether the sets of Poisson rational ideals, Poisson primitive ideals, and Poisson locally closed ideals coincide.
Moosa, Rahim   +8 more
core   +1 more source

Transparent DDoS defense by combining Kolmogorov–Arnold networks and XAI for real-time protection in cloud environments

open access: yesTelematics and Informatics Reports
Cloud computing environments face persistent threats from sophisticated Distributed Denial of Service (DDoS) attacks. Effective defense requires not only high accuracy but also real-time performance and transparent decision-making, a combination that ...
Mohamed Ouhssini   +6 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

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