Results 111 to 120 of about 379,230 (325)

Ricci-Bourguignon soliton on three dimensional para-Sasakian manifold [PDF]

open access: yesJournal of Hyperstructures
In the present paper we study Ricci-Bourguignon solitons on three dimensional para-Sasakian manifolds with potential vector field as a special vector field. We proved the conditions for such manifold to be isometric to hyperbolic space.
Yashaswini R, Nagaraja H.G.
doaj   +1 more source

Recent Progress in Memristor Array‐Based Neuromorphic Computing for on‐Chip Vector‐Matrix Multiplication

open access: yesAdvanced Materials Technologies, EarlyView.
Recent efforts of memristor array‐based hardware neuromorphic computing are discussed for efficient application of VMM on‐chip level in terms of circuit integration and actual application of AI algorithms. The parallel data processing principle of VMM operation is briefly reviewed, and hardware VMM is presented including convolutional transformation ...
Jingon Jang, Sang‐gyun Gi
wiley   +1 more source

Coxeter groups and hyperbolic manifolds [PDF]

open access: yesMathematische Annalen, 2004
The rich theory of Coxeter groups is used to provide an algebraic construction of finite volume hyperbolic n-manifolds. Combinatorial properties of finite images of these groups can be used to compute the volumes of the resulting manifolds. Three examples, in 4,5 and 6-dimensions, are given, each of very small volume, and in one case of smallest ...
openaire   +4 more sources

Illuminating Quantum Phenomena in 2D Materials: The Power of Optical Spectroscopy

open access: yesAdvanced Optical Materials, EarlyView.
Atomically thin 2D materials host quantum tunnelling, plasmonic and excitonic phenomena driven by reduced dimensionality and strong many‐body interactions. This review links these effects to state‐of‐the‐art optical probes—NSOM, pump–probe, CARS, TRR, and optical frequency comb spectroscopy—highlighting how their ultrahigh spatial–temporal resolution ...
Yuhui Zhou   +4 more
wiley   +1 more source

Existence of conjugacies and stable manifolds via suspensions

open access: yesElectronic Journal of Differential Equations, 2017
We obtain in a simpler manner versions of the Grobman-Hartman theorem and of the stable manifold theorem for a sequence of maps on a Banach space, which corresponds to consider a nonautonomous dynamics with discrete time.
Luis Barreira   +2 more
doaj  

Is the Ott-Antonsen manifold attracting?

open access: yesPhysical Review Research, 2020
The Kuramoto model is a paradigm for studying oscillator networks with the interplay between coupling tending towards synchronization and heterogeneity in the oscillator population driving away from synchrony.
Jan R. Engelbrecht, Renato Mirollo
doaj   +1 more source

Measure-Expansive Homoclinic Classes for C1 Generic Flows

open access: yesMathematics, 2020
In this paper, we prove that for a generically C1 vector field X of a compact smooth manifold M, if a homoclinic class H(γ,X) which contains a hyperbolic closed orbit γ is measure expansive for X then H(γ,X) is hyperbolic.
Manseob Lee
doaj   +1 more source

Ends of Hyperbolic 3-Manifolds [PDF]

open access: yesJournal of the American Mathematical Society, 1993
Let N = H 3 / Γ N = {{\mathbf {H}}^3}/\Gamma be a hyperbolic 3 3 -manifold which is homeomorphic to the interior of a compact 3 3 -manifold.
openaire   +2 more sources

Generalized Heterodyne Interferometry in Kerr Materials

open access: yesAdvanced Photonics Research, EarlyView.
Interferometry, combined with heterodyne detection, enables simultaneous measurement of light amplitude and phase. This work applies these methods to study nonlinear phase shifts from the optical Kerr effect during laser pulse propagation. Results show the nonlinear index is straightforward to retrieve at low phases, but at higher powers, pulse shape ...
Arnaud Rogemont   +3 more
wiley   +1 more source

Transformer Encoder–Decoder Framework for Nonlinear Pulse Evolution and Inverse Modeling

open access: yesAdvanced Photonics Research, EarlyView.
Modeling nonlinear pulse evolution in optical systems is key to advancing photonic technologies. A transformer‐based encoder‐decoder framework is proposed for both forward and inverse modeling, applied to supercontinuum generation. This approach captures complex dynamics efficiently, outperforming traditional methods in speed.
Dinesh Kumar Murugan   +2 more
wiley   +1 more source

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