Results 41 to 50 of about 438,132 (304)

Shape Synchronization in Driver-Response of 4-D Chaotic System and Its Application in Image Encryption

open access: yesIEEE Access, 2020
In this paper, we put forward on the drive-response synchronization in shape for four-dimensional (4-D) continuous chaotic system, using the basic theory of plane curves in classical differential geometry. For 4-D continuous system, shape synchronization
Yuanyuan Huang   +4 more
doaj   +1 more source

Geometry of nonholonomic complexes NGr (1, 5, 5)

open access: yesLietuvos Matematikos Rinkinys, 2011
In this article the differential geometry of nonholonomic complexes in five dimensional projective space is considered. The algebraic structure of the first fundamental object is considered and the geometrcal interpretations of some comitants of the ...
Kazimieras Navickis
doaj   +1 more source

Positive geometries and differential forms with non-logarithmic singularities. Part I

open access: yesJournal of High Energy Physics, 2020
Positive geometries encode the physics of scattering amplitudes in flat space- time and the wavefunction of the universe in cosmology for a large class of models.
Paolo Benincasa, Matteo Parisi
doaj   +1 more source

Stationary Veselov-Novikov equation and isothermally asymptotic surfaces in projective differential geometry [PDF]

open access: yes, 1998
It is demonstrated that the stationary Veselov-Novikov (VN) and the stationary modified Veselov-Novikov (mVN) equations describe one and the same class of surfaces in projective differential geometry: the so-called isothermally asymptotic surfaces ...
Ferapontov, E. V.
core   +2 more sources

Classification of 1st order symplectic spinor operators over contact projective geometries [PDF]

open access: yes, 2007
We give a classification of $1^{st}$ order invariant differential operators acting between sections of certain bundles associated to Cartan geometries of the so called metaplectic contact projective type. These bundles are associated via representations,
Baldoni   +27 more
core   +2 more sources

Projective differential geometry and asymptotic analysis in General Relativity [PDF]

open access: yesarXiv, 2021
In this text, we explore the tools that Projective Differential Geometry can provide for the asymptotic analysis of classical fields on projectively compact manifolds. We emphasise on the case of order 2-compactifications and develop, in this case, a projective exterior differential tractor calculus that is analogous to that existing for conformally ...
arxiv  

Practical challenges in data‐driven interpolation: Dealing with noise, enforcing stability, and computing realizations

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley   +1 more source

Differential Geometry of Submanifolds of Projective Space [PDF]

open access: yes, 2008
These are lecture notes on the rigidity of submanifolds of projective space "resembling" compact Hermitian symmetric spaces in their homogeneous embeddings. Recent results are surveyed, along with their classical predecessors. The notes include an introduction to moving frames in projective geometry, an exposition of the Hwang-Yamaguchi ridgidity ...
openaire   +3 more sources

Topology Optimization of Lattice Support Structure for Cantilever Beams Fabricated Via Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView., 2023
A numerical scheme is presented to design a lattice support for metallic components additively built via laser powder bed fusion. Results show that thermal‐induced distortion can be respectively reduced by 69%, 58%, and 50% in comparison to a uniform lattice, a fully solid support, and a truss‐based lattice support.
Jiazheng Hu   +2 more
wiley   +1 more source

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