Results 151 to 160 of about 1,171,920 (274)

Inducing strong convergence into the asymptotic behaviour of proximal splitting algorithms in Hilbert spaces. [PDF]

Optim Methods Softw, 2019
Boţ RI, Csetnek ER, Meier D.
europepmc   +1 more source

A Double‐Blind Randomised Controlled Crossover Trial of the Effect of Blue‐Enriched Ambient Light on Sleep in Older Adults With Sleep Disturbance: The CleverLights Study

Journal of Sleep Research, EarlyView.
ABSTRACT Light interventions have been investigated for treating sleep disturbances in older adults; however, findings are mixed. This proof‐of‐concept trial investigated the effect of blue‐enriched ambient light on electroencephalographic (EEG) sleep in older adults with self‐reported poor sleep.
Teha B. Pun, Craig L. Phillips, Nathaniel S. Marshall, Matthew Rahimi, Rick Wassing, Maria Comas, Angela L. D'Rozario, Camilla M. Hoyos, Delwyn J. Bartlett, Wenye Hu, Sharon L. Naismith, Sean Cain, Svetlana Postnova, Ronald R. Grunstein, Christopher J. Gordon   +14 more
wiley   +1 more source

Quantum optical phase, rigged Hilbert spaces and complementarity. [PDF]

Philos Trans A Math Phys Eng Sci
Bordon K, Vaccaro JA.
europepmc   +1 more source

Some means inequalities for positive operators in Hilbert spaces. [PDF]

J Inequal Appl, 2017
Liang J, Shi G.
europepmc   +1 more source

Isometries on Hilbert spaces

Proceedings of the Japan Academy, Series A, Mathematical Sciences, 1963
openaire   +2 more sources

Nonparametric Inference of Conditional Expectile Functions in Large‐Scale Time Series Data With Improved Efficiency

Journal of Time Series Analysis, EarlyView.
ABSTRACT Expectile is a coherent and elicitable law‐invariant risk measure widely applied in risk management. Existing methods based on iteratively reweighted least squares (IWLS) are not computationally efficient for large‐scale sample sizes. To overcome the issue, we develop a direct nonparametric conditional expectile function estimator by inverting
Feipeng Zhang, Ping‐Shou Zhong
wiley   +1 more source

New generalized systems of nonlinear ordered variational inclusions involving ⊕ operator in real ordered Hilbert spaces. [PDF]

J Inequal Appl, 2018
Sarfaraz M, Nisar KS, Morsy A, Ahmad MK.
europepmc   +1 more source

Density‐Valued ARMA Models by Spline Mixtures

Journal of Time Series Analysis, EarlyView.
ABSTRACT This paper proposes a novel framework for modeling time series of probability density functions by extending autoregressive moving average (ARMA) models to density‐valued data. The method is based on a transformation approach, wherein each density function on a compact domain [0,1]d$$ {\left[0,1\right]}^d $$ is approximated by a B‐spline ...
Yasumasa Matsuda, Rei Iwafuchi
wiley   +1 more source

Bases in Hilbert space [PDF]

Pacific Journal of Mathematics, 1968
openaire   +3 more sources

A Note on Local Polynomial Regression for Time Series in Banach Spaces

Journal of Time Series Analysis, EarlyView.
ABSTRACT This work extends local polynomial regression to Banach space‐valued time series for estimating smoothly varying means and their derivatives in non‐stationary data. The asymptotic properties of both the standard and bias‐reduced Jackknife estimators are analyzed under mild moment conditions, establishing their convergence rates.
Florian Heinrichs
wiley   +1 more source