Results 81 to 90 of about 7,057,920 (327)

Terahertz Volume Plasmon‐Polariton Modulation in All‐Dielectric Hyperbolic Metamaterials

Advanced Optical Materials, EarlyView.
THz volume plasmon‐polariton (VPP) propagation through plasmon‐based hyperbolic metamaterials, made of alternating layers of doped and undoped III‐V semiconductors. Abstract The development of plasmonics and related applications in the terahertz range faces limitations due to the intrinsic high electron density of the standard metals.
Stefano Campanaro, Luca Bursi, Stefano Curtarolo, Arrigo Calzolari   +3 more
wiley   +1 more source

Minimax Estimation of Nonregular Parameters and Discontinuity in Minimax Risk

, 2014
When a parameter of interest is nondifferentiable in the probability, the existing theory of semiparametric efficient estimation is not applicable, as it does not have an influence function.
Bickel P. J., Clarke F. H., Hájek J., Jeganathan P., Le Cam L., Le Cam L., Levit B. Y., van der Vaart A. W.   +7 more
core   +1 more source

Non-asymptotic theory of random matrices: extreme singular values [PDF]

, 2010
The classical random matrix theory is mostly focused on asymptotic spectral properties of random matrices as their dimensions grow to infinity. At the same time many recent applications from convex geometry to functional analysis to information theory ...
M. Rudelson, R. Vershynin
semanticscholar   +1 more source

Reducing Personalization Time and Energy Cost While Walking Outdoors with a Portable Exosuit

Advanced Robotics Research, EarlyView.
Rapid Real‐World Optimization! An AF‐based human‐in‐the‐loop optimization strategy rapidly personalizes a portable hip extension exosuit for incline walking. Real‐time Bayesian optimization of assistive force significantly reduces metabolic energy—up to 16.2%—while converging in just 3 min 24 s.
Kimoon Nam, Saikat Sahoo, Yoosun Kim, Dongmin Go, Jeongho Choo, Cheonkyu Park, Seungtae Yang, Giuk Lee   +7 more
wiley   +1 more source

Methods in half-linear asymptotic theory

Electronic Journal of Differential Equations, 2016
We study the asymptotic behavior of eventually positive solutions of the second-order half-linear differential equation $$ (r(t)|y'|^{\alpha-1}\hbox{sgn} y')'=p(t)|y|^{\alpha-1}\hbox{sgn} y, $$ where r(t) and p(t) are positive continuous functions ...
Pavel Rehak
doaj  

On Stationary Points of Mean Nonexpansive Set-valued Mappings in Banach Spaces

Journal of Harbin University of Science and Technology, 2018
The fixed point theory of the set-valued mappings has important applications in many branches such as modern variation problems，optimization problems and economic equilibrium problems，and it has been an essential part of nonlinear functional analysis ...
CHEN Li-li, GAO Lu, ZHOU Jing
doaj   +1 more source

Asymptotic theory for gene mapping. [PDF]

Proceedings of the National Academy of Sciences, 1994
In genetic linkage mapping, the precision of the location estimate depends on both the number of individuals and the number of markers. Convergence rates and limit laws are established for several situations in which the number of markers depends on the sample size. Practical implications of the results are discussed.
Kong, Augustine, Wright, Fred
openaire   +3 more sources

Formation Control of Multi‐Agent System with Local Interaction and Artificial Potential Field

Advanced Robotics Research, EarlyView.
This article proposes a local interaction‐based formation control method for Multi‐Agent system, integrating consensus and leader‐follower strategies with a stress response mechanism—artificial potential field to reduce communication overhead and enable obstacle avoidance. Experimental results on triangular, square, and hexagonal formations confirm its
Luoyin Zhao, Zheping Yan, Yuqing Wang, Raye Chen‐Hua Yeow   +3 more
wiley   +1 more source

Inflation from asymptotically safe theories [PDF]

Physical Review D, 2015
We investigate models in which inflation is driven by an ultraviolet safe and interacting scalar sector stemming from a new class of nonsupersymmetric gauge field theories. These new theories, differently from generic scalar models, are well defined to arbitrary short distances because of the existence of a controllable ultraviolet interacting fixed ...
Nielsen, Niklas Grønlund, Sannino, Francesco, Svendsen, Ole   +2 more
openaire   +3 more sources

Asymptotic symmetry and conservation laws in 2d Poincar\'e gauge theory of gravity

, 1996
The structure of the asymptotic symmetry in the Poincar\'e gauge theory of gravity in 2d is clarified by using the Hamiltonian formalism. The improved form of the generator of the asymptotic symmetry is found for very general asymptotic behaviour of ...
Blagojevic M, Blagojevic M, Blagojevic M, Blagojevic M, Castellani L, Dirac P A M, Haider F, Hanson A, Ikeda N, Ikeda N, Katanaev M O, Katanaev M O, Katanaev M O, Kibble T W B, Kummer W, M Blagojevic, M Vasilic, Nikolic I, Schaller P, Strobl T, Sundermeyer K, T Vukasinac, t'Hooft G, Weinberg S   +23 more
core   +1 more source