Fractional Gaussian Noise: Projections, Prediction, Norms

We examine the one-sided and two-sided (bilateral) projections of an element of fractional Gaussian noise onto its neighboring elements. We establish several analytical results and conduct a numerical study to analyze the behavior of the coefficients of these projections as functions of the Hurst in...

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Main Authors: Iryna Bodnarchuk, Yuliya Mishura, Kostiantyn Ralchenko
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Fractal and Fractional
Subjects:
Online Access:https://www.mdpi.com/2504-3110/9/7/428
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author Iryna Bodnarchuk
Yuliya Mishura
Kostiantyn Ralchenko
author_facet Iryna Bodnarchuk
Yuliya Mishura
Kostiantyn Ralchenko
author_sort Iryna Bodnarchuk
collection DOAJ
description We examine the one-sided and two-sided (bilateral) projections of an element of fractional Gaussian noise onto its neighboring elements. We establish several analytical results and conduct a numerical study to analyze the behavior of the coefficients of these projections as functions of the Hurst index and the number of neighboring elements used for the projection. We derive recurrence relations for the coefficients of the two-sided projection. Additionally, we explore the norms of both types of projections. Certain special cases are investigated in greater detail, both theoretically and numerically.
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spelling doaj-art-edbe77293ced4fb6b4da365073aede9d2025-08-20T02:45:42ZengMDPI AGFractal and Fractional2504-31102025-06-019742810.3390/fractalfract9070428Fractional Gaussian Noise: Projections, Prediction, NormsIryna Bodnarchuk0Yuliya Mishura1Kostiantyn Ralchenko2Department of Probability Theory, Statistics and Actuarial Mathematics, Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska St., 01601 Kyiv, UkraineDepartment of Probability Theory, Statistics and Actuarial Mathematics, Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska St., 01601 Kyiv, UkraineDepartment of Probability Theory, Statistics and Actuarial Mathematics, Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska St., 01601 Kyiv, UkraineWe examine the one-sided and two-sided (bilateral) projections of an element of fractional Gaussian noise onto its neighboring elements. We establish several analytical results and conduct a numerical study to analyze the behavior of the coefficients of these projections as functions of the Hurst index and the number of neighboring elements used for the projection. We derive recurrence relations for the coefficients of the two-sided projection. Additionally, we explore the norms of both types of projections. Certain special cases are investigated in greater detail, both theoretically and numerically.https://www.mdpi.com/2504-3110/9/7/428fractional Brownian motionfractional Gaussian noisecoefficients of projectionprediction coefficients<i>L</i><sub>2</sub>-normautocovariance function
spellingShingle Iryna Bodnarchuk
Yuliya Mishura
Kostiantyn Ralchenko
Fractional Gaussian Noise: Projections, Prediction, Norms
Fractal and Fractional
fractional Brownian motion
fractional Gaussian noise
coefficients of projection
prediction coefficients
<i>L</i><sub>2</sub>-norm
autocovariance function
title Fractional Gaussian Noise: Projections, Prediction, Norms
title_full Fractional Gaussian Noise: Projections, Prediction, Norms
title_fullStr Fractional Gaussian Noise: Projections, Prediction, Norms
title_full_unstemmed Fractional Gaussian Noise: Projections, Prediction, Norms
title_short Fractional Gaussian Noise: Projections, Prediction, Norms
title_sort fractional gaussian noise projections prediction norms
topic fractional Brownian motion
fractional Gaussian noise
coefficients of projection
prediction coefficients
<i>L</i><sub>2</sub>-norm
autocovariance function
url https://www.mdpi.com/2504-3110/9/7/428
work_keys_str_mv AT irynabodnarchuk fractionalgaussiannoiseprojectionspredictionnorms
AT yuliyamishura fractionalgaussiannoiseprojectionspredictionnorms
AT kostiantynralchenko fractionalgaussiannoiseprojectionspredictionnorms