Results 111 to 120 of about 2,564,259 (289)
Partial Torelli groups and homological stability
, 2019 We prove a homological stability theorem for the subgroup of the mapping class group acting as the identity on some fixed portion of the first homology group of the surface.
Putman, Andrew
core
Mitigating Losses in Hyperbolic Asymptotic Eigenmodes
Advanced Photonics Research, EarlyView.Herein, hyperbolic asymptotic eigenmodes, high‐k modes aligned with asymptotic directions in hyperbolic metamaterials, are introduced. By tuning permittivity tensors to balance loss compensation (Re(ε∥)/Re(ε⊥)=Im(ε∥)/Im(ε⊥))$\left(\right. \text{Re} \left(\right. \left(\epsilon\right)_{\parallel} \left.\right) / \text{Re} \left(\right.
Lu Song +5 more
wiley +1 more source
Determinants as Combinatorial Summation Formulas over an Algebra with a Unique $n$-ary Operation
Известия Иркутского государственного университета: Серия "Математика", 2018 Since the late 1980s the author has published a number of results on matrix functions, which were obtained using the generating functions, mixed discriminants (mixed volumes in $\mathbb R^n$), and the well-known polarization theorem (the most general ...
G.P. Egorychev
doaj +1 more source
On Binomial Identities in Arbitrary Bases
, 2016 We extend the digital binomial identity as given by Nguyen el al. to an identity in an arbitrary base $b$, by introducing the $b-$ary binomial coefficients.
Jiu, Lin, Vignat, Christophe
core +1 more source
All‐Dielectric Metasurface‐Based Gap Waveguides
Advanced Photonics Research, EarlyView.Dielectric metasurface‐based waveguides (metawavegides) offer several advantages over conventional waveguides, making them ideal for integrated photonics. A design of a metawaveguide composed of a pair of dielectric metasurfaces is proposed, where each metasurface behaves as a wall of either a perfect electric conductor or a perfect magnetic conductor,
Vladimir R. Tuz +4 more
wiley +1 more source
Low-cost group-based identity security authentication protocol for NB-IoT nodes
Tongxin xuebao, 2021 To address the problem of huge number of signaling requests when large-scale devices request authentication in NB-IoT network， a low-cost group identity security authentication protocol based on Schnorr aggregate signature and Chinese reminder theorem ...
Xiangmao CHANG, Jun ZHAN, Zhiwei WANG
doaj +2 more sources
On some constants in simultaneous approximation
International Journal of Mathematics and Mathematical Sciences, 1995 Pointwise estimates for the error which is feasible in simultaneous approximation of a function and its derivatives by an algebraic polynomial were originally pursued from theoretical motivations, which did not immediately require the estimation of the ...
K. Balázs, T. Kilgore
doaj +1 more source
Computing Equilibrium Free Energies Using Non-Equilibrium Molecular Dynamics
Entropy, 2013 As shown by Jarzynski, free energy differences between equilibrium states can be expressed in terms of the statistics of work carried out on a system during non-equilibrium transformations.
Christoph Dellago, Gerhard Hummer
doaj +1 more source
Poka: A Necro‐Robot Beetle with a Measured Payload Ratio of 6847%
Advanced Robotics Research, EarlyView.Here, Poka, a necro‐robot beetle with the ability to carry more than 68 times its own weight, is introduced, making it also a walking robot with the highest payload ratio measured to date. This paper is concerned with the design, manufacture and validation of ‘Poka', a novel millimetre‐scale necro‐robot aimed at bridging the performance gap between ...
Yordan Tsvetkov, Parvez Alam
wiley +1 more source
Quenchable Amorphous Diamond: A Novel High‐Pressure Route to Tetrahedral Amorphous Carbon
Advanced Theory and Simulations, EarlyView.This study predicts the high‐pressure transformation of amorphous graphite into an sp3‐rich amorphous diamond phase using ab initio molecular dynamics. A first‐order transition is expected to occur ≈33 GPa in experiments, offering a novel synthesis route for sp3‐bonded amorphous carbon.
Murat Durandurdu
wiley +1 more source