Some New Sobolev-Type Theorems for the Rough Riesz Potential Operator on Grand Variable Herz Spaces

In this paper, our first objective is to define the idea of grand variable Herz spaces. Then, our main goal is to prove boundedness results for operators, including the rough Riesz potential operator of variable order and the fractional Hardy operators, on grand variable Herz spaces under some prope...

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Main Authors: Ghada AlNemer, Ghada Ali Basendwah, Babar Sultan, Ioan-Lucian Popa
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Mathematics
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Online Access:https://www.mdpi.com/2227-7390/13/11/1873
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author Ghada AlNemer
Ghada Ali Basendwah
Babar Sultan
Ioan-Lucian Popa
author_facet Ghada AlNemer
Ghada Ali Basendwah
Babar Sultan
Ioan-Lucian Popa
author_sort Ghada AlNemer
collection DOAJ
description In this paper, our first objective is to define the idea of grand variable Herz spaces. Then, our main goal is to prove boundedness results for operators, including the rough Riesz potential operator of variable order and the fractional Hardy operators, on grand variable Herz spaces under some proper assumptions. To prove the boundedness results, we use Holder-type and Minkowski inequalities. In the proof of the main result, we use different techniques. We divide the summation into different terms and estimate each term under different conditions. Then, by combining the estimates, we prove that the rough Riesz potential operator of variable order and the fractional Hardy operators are bounded on grand variable Herz spaces. It is easy to show that the rough Riesz potential operator of variable order generalizes the Riesz potential operator and that the fractional Hardy operators are generalized versions of simple Hardy operators. So, our results extend some previous results to the more generalized setting of grand variable Herz spaces.
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institution OA Journals
issn 2227-7390
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spelling doaj-art-726d4cebb6a044b781712409657b09c02025-08-20T02:23:04ZengMDPI AGMathematics2227-73902025-06-011311187310.3390/math13111873Some New Sobolev-Type Theorems for the Rough Riesz Potential Operator on Grand Variable Herz SpacesGhada AlNemer0Ghada Ali Basendwah1Babar Sultan2Ioan-Lucian Popa3Department of Mathematical Sciences, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi ArabiaDepartment of Mathematics, King Abdulaziz University, Jeddah 21589, Saudi ArabiaDepartment of Mathematics, Quaid-I-Azam University, Islamabad 45320, PakistanDepartment of Computing, Mathematics and Electronics, “1 Decembrie 1918” University of Alba Iulia, 510009 Alba Iulia, RomaniaIn this paper, our first objective is to define the idea of grand variable Herz spaces. Then, our main goal is to prove boundedness results for operators, including the rough Riesz potential operator of variable order and the fractional Hardy operators, on grand variable Herz spaces under some proper assumptions. To prove the boundedness results, we use Holder-type and Minkowski inequalities. In the proof of the main result, we use different techniques. We divide the summation into different terms and estimate each term under different conditions. Then, by combining the estimates, we prove that the rough Riesz potential operator of variable order and the fractional Hardy operators are bounded on grand variable Herz spaces. It is easy to show that the rough Riesz potential operator of variable order generalizes the Riesz potential operator and that the fractional Hardy operators are generalized versions of simple Hardy operators. So, our results extend some previous results to the more generalized setting of grand variable Herz spaces.https://www.mdpi.com/2227-7390/13/11/1873Lebesgue spacesweighted estimatesRiesz potentialgrand variable Herz spaces
spellingShingle Ghada AlNemer
Ghada Ali Basendwah
Babar Sultan
Ioan-Lucian Popa
Some New Sobolev-Type Theorems for the Rough Riesz Potential Operator on Grand Variable Herz Spaces
Mathematics
Lebesgue spaces
weighted estimates
Riesz potential
grand variable Herz spaces
title Some New Sobolev-Type Theorems for the Rough Riesz Potential Operator on Grand Variable Herz Spaces
title_full Some New Sobolev-Type Theorems for the Rough Riesz Potential Operator on Grand Variable Herz Spaces
title_fullStr Some New Sobolev-Type Theorems for the Rough Riesz Potential Operator on Grand Variable Herz Spaces
title_full_unstemmed Some New Sobolev-Type Theorems for the Rough Riesz Potential Operator on Grand Variable Herz Spaces
title_short Some New Sobolev-Type Theorems for the Rough Riesz Potential Operator on Grand Variable Herz Spaces
title_sort some new sobolev type theorems for the rough riesz potential operator on grand variable herz spaces
topic Lebesgue spaces
weighted estimates
Riesz potential
grand variable Herz spaces
url https://www.mdpi.com/2227-7390/13/11/1873
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AT ghadaalibasendwah somenewsobolevtypetheoremsfortheroughrieszpotentialoperatorongrandvariableherzspaces
AT babarsultan somenewsobolevtypetheoremsfortheroughrieszpotentialoperatorongrandvariableherzspaces
AT ioanlucianpopa somenewsobolevtypetheoremsfortheroughrieszpotentialoperatorongrandvariableherzspaces