Results 191 to 200 of about 1,225,050 (328)

On pointwise convergence of Mellin type nonlinear m-singular integral operators

, 2013
We give some approximation theorems concerning pointwise convergence of certain singular integral operators involving the high order difference operators of a function, with respect to the Mellin setting.
BARDARO, Carlo, H. Karsli, VINTI, Gianluca   +2 more
core  

Adaptive Estimation for Weakly Dependent Functional Times Series

Journal of Time Series Analysis, EarlyView.
ABSTRACT We propose adaptive mean and autocovariance function estimators for stationary functional time series under 𝕃p−m‐approximability assumptions. These estimators are designed to adapt to the regularity of the curves and to accommodate both sparse and dense data designs.
Hassan Maissoro, Valentin Patilea, Myriam Vimond   +2 more
wiley   +1 more source

Evolution Equations on Co-evolving Graphs: Long-Time Behaviour and the Graph-Continuity Equation. [PDF]

J Nonlinear Sci
Carrillo JA, Esposito A, Mikolás L.
europepmc   +1 more source

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

Early Apple Bruise Detection via Discrete Hyperspectral Signatures with SHAP-Guided Feature Selection and a CNN-Transformer Model. [PDF]

Foods
Liu Y, Yu C, Liu C, Xu Z, Xiong B, Zhang C, Yang W, Tao W.   +7 more
europepmc   +1 more source

Green’s function and pointwise convergence for compressible Navier-Stokes equations

, 2017
S. Deng, Shih-Hsien Yu
semanticscholar   +1 more source

On Testing for Independence Between Generalized Error Models of Several Time Series

Journal of Time Series Analysis, EarlyView.
ABSTRACT We define generalized innovations associated with generalized error models having arbitrary distributions, that is, distributions that can be mixtures of continuous and discrete distributions. These models include stochastic volatility models and regime‐switching models with possibly zero‐inflated regimes.
Kilani Ghoudi, Bouchra R. Nasri, Bruno N. Rémillard   +2 more
wiley   +1 more source

Factors Associated With Long-Term Visual Field Variability in Patients With Normal-Tension Glaucoma. [PDF]

J Ophthalmol
Ha S, Moon S, Kim E, Jeong S, Yang H, Lee J.   +5 more
europepmc   +1 more source

Pointwise convergence of Fourier series (I). On a conjecture of Konyagin

, 2017
Victor Lie
semanticscholar   +1 more source

Penalized Convex Estimation in Dynamic Location Models

Journal of Time Series Analysis, EarlyView.
ABSTRACT This paper studies L1$$ {L}^1 $$‐penalized estimation for location models yt=mt+ϵt$$ {y}_t={m}_t+{\epsilon}_t $$, where mt$$ {m}_t $$ is defined by a possibly non‐Markovian recursion and ϵt$$ {\epsilon}_t $$ is a martingale difference sequence with possibly time‐varying conditional variance.
Reda Alami Chentoufi
wiley   +1 more source