On Lr-norm-based derivatives and fuzzy Henstock-Kurzweil integrals with an application

The fundamental theorem of calculus not only plays an important role in the study of differential equation theory, but also in many practical problems solving. In order to enrich its content, in present paper, we extend fuzzy derivatives and fuzzy Henstock-Kurzweil integrals. Firstly, we discuss som...

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Main Authors: Yabin Shao, Yubing Li, Zengtai Gong
Format: Article
Language:English
Published: Elsevier 2023-03-01
Series:Alexandria Engineering Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S111001682200802X
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author Yabin Shao
Yubing Li
Zengtai Gong
author_facet Yabin Shao
Yubing Li
Zengtai Gong
author_sort Yabin Shao
collection DOAJ
description The fundamental theorem of calculus not only plays an important role in the study of differential equation theory, but also in many practical problems solving. In order to enrich its content, in present paper, we extend fuzzy derivatives and fuzzy Henstock-Kurzweil integrals. Firstly, we discuss some properties of Lr-norm-based derivatives for fuzzy Henstock-Kurzweil integrable function (or briefly FLr-derivative). Then, we give some relationships with well-known fuzzy derivatives. After that, we also define a kind of fuzzy Henstock-Kurzweil integral based on FLr-derivative (or briefly Lr-FHK-integral). In addition, we give some important properties and convergence theorems for the Lr-FHK-integral. Meanwhile, we obtain a sufficient and necessary condition for integrability of this integral. As the application, we discuss the fuzzy Fourier series.
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spelling doaj.art-1b49d16a54db4e17b30c1ba034c63ab22023-03-13T04:15:13ZengElsevierAlexandria Engineering Journal1110-01682023-03-0167361373On Lr-norm-based derivatives and fuzzy Henstock-Kurzweil integrals with an applicationYabin Shao0Yubing Li1Zengtai Gong2School of Science, Chongqing University of Posts and Telecommunications, Nanan 400065, Chongqing, ChinaSchool of Science, Chongqing University of Posts and Telecommunications, Nanan 400065, Chongqing, ChinaCorresponding author.; School of Science, Chongqing University of Posts and Telecommunications, Nanan 400065, Chongqing, ChinaThe fundamental theorem of calculus not only plays an important role in the study of differential equation theory, but also in many practical problems solving. In order to enrich its content, in present paper, we extend fuzzy derivatives and fuzzy Henstock-Kurzweil integrals. Firstly, we discuss some properties of Lr-norm-based derivatives for fuzzy Henstock-Kurzweil integrable function (or briefly FLr-derivative). Then, we give some relationships with well-known fuzzy derivatives. After that, we also define a kind of fuzzy Henstock-Kurzweil integral based on FLr-derivative (or briefly Lr-FHK-integral). In addition, we give some important properties and convergence theorems for the Lr-FHK-integral. Meanwhile, we obtain a sufficient and necessary condition for integrability of this integral. As the application, we discuss the fuzzy Fourier series.http://www.sciencedirect.com/science/article/pii/S111001682200802X03E7226E5034A0734D20
spellingShingle Yabin Shao
Yubing Li
Zengtai Gong
On Lr-norm-based derivatives and fuzzy Henstock-Kurzweil integrals with an application
Alexandria Engineering Journal
03E72
26E50
34A07
34D20
title On Lr-norm-based derivatives and fuzzy Henstock-Kurzweil integrals with an application
title_full On Lr-norm-based derivatives and fuzzy Henstock-Kurzweil integrals with an application
title_fullStr On Lr-norm-based derivatives and fuzzy Henstock-Kurzweil integrals with an application
title_full_unstemmed On Lr-norm-based derivatives and fuzzy Henstock-Kurzweil integrals with an application
title_short On Lr-norm-based derivatives and fuzzy Henstock-Kurzweil integrals with an application
title_sort on lr norm based derivatives and fuzzy henstock kurzweil integrals with an application
topic 03E72
26E50
34A07
34D20
url http://www.sciencedirect.com/science/article/pii/S111001682200802X
work_keys_str_mv AT yabinshao onlrnormbasedderivativesandfuzzyhenstockkurzweilintegralswithanapplication
AT yubingli onlrnormbasedderivativesandfuzzyhenstockkurzweilintegralswithanapplication
AT zengtaigong onlrnormbasedderivativesandfuzzyhenstockkurzweilintegralswithanapplication