This paper establishes the wavelet characterization of Campanato spaces with variable exponents by using compactly supported smooth wavelets with high vanishing moments. We apply the characterization to the boundedness of Riesz potentials.
Citation: Chenchen Niu, Hongbin Wang, Zongguang Liu. The wavelet characterization in Campanato spaces with variable exponents[J]. AIMS Mathematics, 2026, 11(10): 35313-35334. doi: 10.3934/math.20261371
This paper establishes the wavelet characterization of Campanato spaces with variable exponents by using compactly supported smooth wavelets with high vanishing moments. We apply the characterization to the boundedness of Riesz potentials.
| [1] |
S. Campanato, Proprietà di hölderianità di alcune classi di funzioni, Ann. Scuola Norm.-Sci., 17 (1963), 175–188. |
| [2] |
D. V. Cruz-Uribe, A. Fiorenza, Variable Lebesgue spaces: foundations and harmonic analysis, Basel: Birkhäuser, 2013. https://doi.org/10.1007/978-3-0348-0548-3 |
| [3] |
D. Cruz-Uribe, A. Fiorenza, C. J. Neugebauer, The maximal function on variable $L^p$ spaces, Ann. Acad. Sci. Fenn.-Math., 28 (2003), 223–238. |
| [4] |
D. Cruz-Uribe, L. Wang, Variable Hardy spaces, Indiana Univ. Math. J., 63 (2014), 447–493. |
| [5] |
I. Daubechies, Ten lectures on wavelets, Philadelphia: SIAM, 1992. https://doi.org/10.1137/1.9781611970104 |
| [6] |
L. T. Dechevsky, Atomic decomposition of function spaces and fractional integral and differential operators, Fract. Calc. Appl. Anal., 2 (1999), 367–381. |
| [7] |
L. Diening, P. Harjulehto, P. Hästö, M. Ruzicka, Lebesgue and Sobolev spaces with variable exponents, Berlin: Springer, 2011. https://doi.org/10.1007/978-3-642-18363-8 |
| [8] |
B. Dong, Z. Fu, J. Xu, Riesz-Kolmogorov theorem in variable exponent Lebesgue spaces and its applications to Riemann-Liouville fractional differential equations, Sci. China Math., 61 (2018), 1807–1824. https://doi.org/10.1007/s11425-017-9274-0 doi: 10.1007/s11425-017-9274-0
|
| [9] |
X. Fan, Variable exponent Morrey and Campanato spaces, Nonlinear Anal.-Theor., 72 (2010), 4148–4161. https://doi.org/10.1016/j.na.2010.01.047 doi: 10.1016/j.na.2010.01.047
|
| [10] |
X. Fu, Equivalent characterizations of Hardy spaces with variable exponent via wavelets, Front. Math. China, 14 (2019), 737–759. https://doi.org/10.1007/s11464-019-0777-5 doi: 10.1007/s11464-019-0777-5
|
| [11] |
M. Izuki, Boundedness of sublinear operators on Herz spaces with variable exponent and application to wavelet characterization, Anal. Math., 36 (2010), 33–50. https://doi.org/10.1007/s10476-010-0102-8 doi: 10.1007/s10476-010-0102-8
|
| [12] |
O. Kováčik, J. Rákosník, On spaces $L^{p(x)}$ and $W^{k, p(x)}$, Czech. Math. J., 41 (1991), 592–618. https://doi.org/10.21136/CMJ.1991.102493 doi: 10.21136/CMJ.1991.102493
|
| [13] |
P. Li, W. Sun, Applications of multi-resolution analysis to Besov-Q type spaces and Triebel-Lizorkin type spaces (Chinese), Advances in Mathematics, 48 (2019), 513–530. https://doi.org/10.11845/sxjz.2019005a doi: 10.11845/sxjz.2019005a
|
| [14] |
F. Li, Z. Li, L. Pi, Variable exponent functionals in image restoration, Appl. Math. Comput., 216 (2010), 870–882. https://doi.org/10.1016/j.amc.2010.01.094 doi: 10.1016/j.amc.2010.01.094
|
| [15] |
Q. Li, Y. Yu, W. Wang, M. Liu, Multiplicity of normalized solutions for Sobolev supercritical Schrödinger equations with potential, Math. Method. Appl. Sci., 49 (2026), 8275–8287. https://doi.org/10.1002/mma.70472 doi: 10.1002/mma.70472
|
| [16] |
R. May, Unicité des solutions des équations de Navier-Stokes dans les espaces de Morrey-Campanato, Bull. Sci. Math., 133 (2009), 817–836. https://doi.org/10.1016/j.bulsci.2008.12.003 doi: 10.1016/j.bulsci.2008.12.003
|
| [17] |
Y. Meyer, Wavelets and operators, II: Calderón-Zygmund operators, Paris: Hermann, 1990. |
| [18] |
Y. Meyer, Wavelets and operators, Cambridge: Cambridge University Press, 1992. https://doi.org/10.1017/CBO9780511623820 |
| [19] |
E. Nakai, Y. Sawano, Hardy spaces with variable exponents and generalized Campanato spaces, J. Funct. Anal., 262 (2012), 3665–3748. https://doi.org/10.1016/j.jfa.2012.01.004 doi: 10.1016/j.jfa.2012.01.004
|
| [20] |
N. Papageorgiou, V. Radulescu, W. Zhang, Multiple solutions with sign information for double-phase problems with unbalanced growth, Bull. London Math. Soc., 57 (2024), 638–656. https://doi.org/10.1112/blms.13218 doi: 10.1112/blms.13218
|
| [21] |
H. Rafeiro, S. Samko, Variable exponent Campanato spaces, J. Math. Sci., 172 (2011), 143–164. https://doi.org/10.1007/s10958-010-0189-2 doi: 10.1007/s10958-010-0189-2
|
| [22] |
H. Rafeiro, S. Samko, On the Riesz potential operator of variable order from variable exponent Morrey space to variable exponent Campanato space, Math. Method. Appl. Sci., 43 (2020), 9337–9344. https://doi.org/10.1002/mma.6187 doi: 10.1002/mma.6187
|
| [23] |
H. Rafeiro, S. Samko, Addendum to "On the Riesz potential operator of variable order from variable exponent Morrey space to variable exponent Campanato space", Math. Method Appl. Sci., 45 (2022), 557–560. https://doi.org/10.1002/mma.7796 doi: 10.1002/mma.7796
|
| [24] |
J. Tan, Carleson measure spaces with variable exponents and their applications, Integr. Equ. Oper. Theory, 91 (2019), 38. https://doi.org/10.1007/s00020-019-2536-0 doi: 10.1007/s00020-019-2536-0
|
| [25] |
H. Triebel, Theory of function spaces III, Basel: Birkhäuser, 2006. https://doi.org/10.1007/3-7643-7582-5 |
| [26] |
Z. Liu, H. Wang, The wavelet characterization of Herz-type Hardy spaces with variable exponent, Ann. Funct. Anal., 3 (2012), 128–141. https://doi.org/10.15352/afa/1399900030 doi: 10.15352/afa/1399900030
|
| [27] |
J. Ward, K. Chaudhury, M. Unser, Decay properties of Riesz transforms and steerable wavelets, SIAM J. Imaging Sci., 6 (2013), 984–998. https://doi.org/10.1137/120864143 doi: 10.1137/120864143
|
| [28] |
P. Wojtaszczyk, A mathematical introduction to wavelets, Cambridge: Cambridge University Press, 1997. https://doi.org/10.1017/CBO9780511623790 |
| [29] |
W. Yuan, W. Sickel, D. Yang, Morrey and Campanato meet Besov, Lizorkin and Triebel, Heidelberg: Springer, 2010. https://doi.org/10.1007/978-3-642-14606-0 |