Home The weak Harnack inequality for unbounded minimizers of elliptic functionals with generalized Orlicz growth
Article
Licensed
Unlicensed Requires Authentication

The weak Harnack inequality for unbounded minimizers of elliptic functionals with generalized Orlicz growth

  • Simone Ciani , Eurica Henriques EMAIL logo and Igor I. Skrypnik
Published/Copyright: November 17, 2024

Abstract

In this work we prove that the non-negative functions u L loc s ( Ω ) , for some s > 0 , belonging to the De Giorgi classes

B r ( 1 - σ ) ( x 0 ) | ( u - k ) - | p d x c σ q Λ ( x 0 , r , k ) ( k r ) p ( | B r ( x 0 ) { u k } | | B r ( x 0 ) | ) 1 - δ ,

under proper assumptions on Λ, satisfy a weak Harnack inequality with a constant depending on the L s -norm of u. Under suitable assumptions on Λ, the minimizers of elliptic functionals with generalized Orlicz growth belong to De Giorgi classes satisfying the above condition; thus this study gives a wider interpretation of Harnack-type estimates derived to double-phase, degenerate double-phase functionals and functionals with variable exponents.

MSC 2020: 35B40; 35B45; 35B65

Communicated by Ugo Gianazza


Award Identifier / Grant number: UIDB/00013/2020 and UIDP/00013/2020

Funding source: Simons Foundation

Award Identifier / Grant number: 1160640

Funding statement: Eurica Henriques was financed by Portuguese Funds through FCT–Fundação para a Ciência e a Tecnologia – within the Projects UIDB/00013/2020 and UIDP/00013/2020. Igor I. Skrypnik is partial supported by a grant from the Simons Foundation (Award 1160640, Presidential Discretionary-Ukraine Support Grants, Skrypnik I. I.)

References

[1] Y. A. Alkhutov, The Harnack inequality and the Hölder property of solutions of nonlinear elliptic equations with a nonstandard growth condition (in Russian), Differ. Uravn. 33 (1997), no. 12, 1651–1660; translation in Differential Equations 33 (1997), no. 12, 1653–1663. Search in Google Scholar

[2] Y. A. Alkhutov and O. V. Krasheninnikova, On the continuity of solutions of elliptic equations with a variable order of nonlinearity (in Russian, Tr. Mat. Inst. Steklova 261 (2008), 7–15; translation in Proc. Steklov Inst. Math. 261 (2008), 1–10. Search in Google Scholar

[3] Y. A. Alkhutov and M. D. Surnachev, A Harnack inequality for a transmission problem with p ( x ) -Laplacian, Appl. Anal. 98 (2019), no. 1–2, 332–344. 10.1080/00036811.2017.1423473Search in Google Scholar

[4] Y. A. Alkhutov and M. D. Surnachev, Harnack’s inequality for the p ( x ) -Laplacian with a two-phase exponent p ( x ) , J. Math. Sci. (N. Y.) 244 (2020), no. 2, 116–147. 10.1007/s10958-019-04609-ySearch in Google Scholar

[5] Y. A. Alkhutov and M. D. Surnachev, Hölder continuity and Harnack’s inequality for p ( x ) -harmonic functions, Tr. Mat. Inst. Steklova 308 (2020), 7–27. 10.1134/S0081543820010010Search in Google Scholar

[6] W. Arriagada and J. Huentutripay, A Harnack inequality in Orlicz–Sobolev spaces, Studia Math. 243 (2018), no. 2, 117–137. 10.4064/sm8764-9-2017Search in Google Scholar

[7] P. Baroni, M. Colombo and G. Mingione, Harnack inequalities for double phase functionals, Nonlinear Anal. 121 (2015), 206–222. 10.1016/j.na.2014.11.001Search in Google Scholar

[8] P. Baroni, M. Colombo and G. Mingione, Nonautonomous functionals, borderline cases and related function classes, St. Petersburg Math. J. 27 (2016), 347–379. 10.1090/spmj/1392Search in Google Scholar

[9] P. Baroni, M. Colombo and G. Mingione, Regularity for general functionals with double phase, Calc. Var. Partial Differential Equations 57 (2018), no. 2, Paper No. 62. 10.1007/s00526-018-1332-zSearch in Google Scholar

[10] P. Bella and M. Schäffner, Local boundedness and Harnack inequality for solutions of linear nonuniformly elliptic equations, Comm. Pure Appl. Math. 74 (2021), no. 3, 453–477. 10.1002/cpa.21876Search in Google Scholar

[11] A. Benyaiche, P. Harjulehto, P. Hästö and A. Karppinen, The weak Harnack inequality for unbounded supersolutions of equations with generalized Orlicz growth, J. Differential Equations 275 (2021), 790–814. 10.1016/j.jde.2020.11.007Search in Google Scholar

[12] E. Bombieri and E. Giusti, Harnack’s inequality for elliptic differential equations on minimal surfaces, Invent. Math. 15 (1972), 24–46. 10.1007/BF01418640Search in Google Scholar

[13] K. O. Buryachenko and I. I. Skrypnik, Local continuity and Harnack’s inequality for double-phase parabolic equations, Potential Anal. 56 (2022), no. 1, 137–164. 10.1007/s11118-020-09879-9Search in Google Scholar

[14] M. Colombo and G. Mingione, Bounded minimisers of double phase variational integrals, Arch. Ration. Mech. Anal. 218 (2015), no. 1, 219–273. 10.1007/s00205-015-0859-9Search in Google Scholar

[15] M. Colombo and G. Mingione, Regularity for double phase variational problems, Arch. Ration. Mech. Anal. 215 (2015), no. 2, 443–496. 10.1007/s00205-014-0785-2Search in Google Scholar

[16] M. Colombo and G. Mingione, Calderón–Zygmund estimates and non-uniformly elliptic operators, J. Funct. Anal. 270 (2016), no. 4, 1416–1478. 10.1016/j.jfa.2015.06.022Search in Google Scholar

[17] E. De Giorgi, Sulla differenziabilità e l’analiticità delle estremali degli integrali multipli regolari, Mem. Accad. Sci. Torino. Cl. Sci. Fis. Mat. Nat. (3) 3 (1957), 25–43. Search in Google Scholar

[18] E. DiBenedetto, U. Gianazza and V. Vespri, Local clustering of the non-zero set of functions in W 1 , 1 ( E ) , Atti Accad. Naz. Lincei Rend. Lincei Mat. Appl. 17 (2006), no. 3, 223–225. 10.4171/rlm/465Search in Google Scholar

[19] E. DiBenedetto and N. S. Trudinger, Harnack inequalities for quasiminima of variational integrals, Ann. Inst. H. Poincaré Anal. Non Linéaire 1 (1984), no. 4, 295–308. 10.1016/s0294-1449(16)30424-3Search in Google Scholar

[20] X. Fan, A Class of De Giorgi Type and Hölder Continuity of Minimizers of Variational with m ( x ) -Growth Condition, Lanzhou University, Lanzhou, 1995. Search in Google Scholar

[21] X. Fan and D. Zhao, A class of De Giorgi type and Hölder continuity, Nonlinear Anal. 36 (1999), no. 3, 295–318. 10.1016/S0362-546X(97)00628-7Search in Google Scholar

[22] O. V. Hadzhy, I. I. Skrypnik and M. V. Voitovych, Interior continuity, continuity up to the boundary, and Harnack’s inequality for double-phase elliptic equations with nonlogarithmic conditions, Math. Nachr. 296 (2023), no. 9, 3892–3914. 10.1002/mana.202000574Search in Google Scholar

[23] P. Harjulehto and P. Hästö, Boundary regularity under generalized growth conditions, Z. Anal. Anwend. 38 (2019), no. 1, 73–96. 10.4171/zaa/1628Search in Google Scholar

[24] P. Harjulehto, P. Hästö and M. Lee, Hölder continuity of ω-minimizers of functionals with generalized Orlicz growth, Ann. Sc. Norm. Super. Pisa Cl. Sci. (5) 22 (2021), no. 2, 549–582. 10.2422/2036-2145.201908_015Search in Google Scholar

[25] P. Harjulehto, P. Hästö and O. Toivanen, Hölder regularity of quasiminimizers under generalized growth conditions, Calc. Var. Partial Differential Equations 56 (2017), no. 2, Paper No. 22. 10.1007/s00526-017-1114-zSearch in Google Scholar

[26] P. Harjulehto, J. Kinnunen and T. Lukkari, Unbounded supersolutions of nonlinear equations with nonstandard growth, Bound. Value Probl. 2007 (2007), Article ID 48348. 10.1155/2007/48348Search in Google Scholar

[27] P. Harjulehto, T. Kuusi, T. Lukkari, N. Marola and M. Parviainen, Harnack’s inequality for quasiminimizers with nonstandard growth conditions, J. Math. Anal. Appl. 344 (2008), no. 1, 504–520. 10.1016/j.jmaa.2008.03.018Search in Google Scholar

[28] P. Hästö and J. Ok, Regularity theory for non-autonomous problems with a priori assumptions, Calc. Var. Partial Differential Equations 62 (2023), no. 9, Paper No. 251. 10.1007/s00526-023-02587-3Search in Google Scholar

[29] O. A. Ladyzhenskaya and N. N. Ural’tseva, Linear and Quasilinear Elliptic Equations, Nauka, Moscow, 1973. Search in Google Scholar

[30] G. M. Lieberman, The natural generalization of the natural conditions of Ladyzhenskaya and Ural’tseva for elliptic equations, Comm. Partial Differential Equations 16 (1991), no. 2–3, 311–361. 10.1080/03605309108820761Search in Google Scholar

[31] V. Liskevich and I. I. Skrypnik, Harnack inequality and continuity of solutions to elliptic equations with nonstandard growth conditions and lower order terms, Ann. Mat. Pura Appl. (4) 189 (2010), no. 2, 333–356. 10.1007/s10231-009-0111-zSearch in Google Scholar

[32] P. Marcellini, Regularity of minimizers of integrals of the calculus of variations with nonstandard growth conditions, Arch. Ration. Mech. Anal. 105 (1989), no. 3, 267–284. 10.1007/BF00251503Search in Google Scholar

[33] P. Marcellini, Regularity and existence of solutions of elliptic equations with p , q -growth conditions, J. Differential Equations 90 (1991), no. 1, 1–30. 10.1016/0022-0396(91)90158-6Search in Google Scholar

[34] Y. Mizuta, T. Ohno and T. Shimomura, Sobolev’s theorem for double phase functionals, Math. Inequal. Appl. 23 (2020), no. 1, 17–33. 10.7153/mia-2020-23-02Search in Google Scholar

[35] J. Moser, On Harnack’s theorem for elliptic differential equations, Comm. Pure Appl. Math. 14 (1961), 577–591. 10.1002/cpa.3160140329Search in Google Scholar

[36] J. Ok, Regularity for double phase problems under additional integrability assumptions, Nonlinear Anal. 194 (2020), Article ID 111408. 10.1016/j.na.2018.12.019Search in Google Scholar

[37] M. A. Ragusa and A. Tachikawa, Regularity for minimizers for functionals of double phase with variable exponents, Adv. Nonlinear Anal. 9 (2020), no. 1, 710–728. 10.1515/anona-2020-0022Search in Google Scholar

[38] M. A. Savchenko, I. I. Skrypnik and Y. A. Yevgenieva, A note on the weak Harnack inequality for unbounded minimizers of elliptic functionals with generalized Orlicz growth, preprint (2023), https://arxiv.org/abs/2304.04499. Search in Google Scholar

[39] M. O. Savchenko, I. I. Skrypnik and Y. A. Yevgenieva, Continuity and Harnack inequalities for local minimizers of non-uniformly elliptic functionals with generalized Orlicz growth under the non-logarithmic conditions, Nonlinear Anal. 230 (2023), Article ID 113221. 10.1016/j.na.2023.113221Search in Google Scholar

[40] M. A. Shan, I. I. Skrypnik and M. V. Voitovych, Harnack’s inequality for quasilinear elliptic equations with generalized Orlicz growth, Electron. J. Differential Equations 2021 (2021), Paper No. 27. 10.58997/ejde.2021.27Search in Google Scholar

[41] I. Skrypnik and Y. Yevgenieva, Harnack inequality for solutions of the p ( x ) -Laplace equation under the precise non-logarithmic Zhikov’s conditions, Calc. Var. Partial Differential Equations 63 (2024), no. 1, Paper No. 7. 10.1007/s00526-023-02608-1Search in Google Scholar

[42] I. I. Skrypnik and M. V. Voitovych, 1 classes of De Giorgi–Ladyzhenskaya–Ural’tseva and their applications to elliptic and parabolic equations with generalized Orlicz growth conditions, Nonlinear Anal. 202 (2021), Paper No. 112135. 10.1016/j.na.2020.112135Search in Google Scholar

[43] I. I. Skrypnik and M. V. Voitovych, On the continuity of solutions of quasilinear parabolic equations with generalized Orlicz growth under non-logarithmic conditions, Ann. Mat. Pura Appl. (4) 201 (2022), no. 3, 1381–1416. 10.1007/s10231-021-01161-ySearch in Google Scholar

[44] M. Surnachev, On the weak Harnack inequality for the parabolic p ( x ) -Laplacian, Asymptot. Anal. 130 (2022), no. 1–2, 127–165. 10.3233/ASY-211746Search in Google Scholar

[45] M. D. Surnachev, On Harnack’s inequality for p ( x ) -Laplacian, Keldysh Institute (2018), https://doi.org/10.20948/PREPR-2018-69. 10.20948/prepr-2018-69Search in Google Scholar

[46] N. S. Trudinger, On the regularity of generalized solutions of linear, non-uniformly elliptic equations, Arch. Ration. Mech. Anal. 42 (1971), 50–62. 10.1007/BF00282317Search in Google Scholar

[47] B. Wang, D. Liu and P. Zhao, Hölder continuity for nonlinear elliptic problem in Musielak–Orlicz–Sobolev space, J. Differential Equations 266 (2019), no. 8, 4835–4863. 10.1016/j.jde.2018.10.013Search in Google Scholar

[48] V. V. Zhikov, Questions of convergence, duality and averaging for functionals of the calculus of variations, Izv. Akad. Nauk SSSR Ser. Mat. 47 (1983), no. 5, 961–998. Search in Google Scholar

[49] V. V. Zhikov, On Lavrentiev’s phenomenon, Russian J. Math. Phys. 3 (1995), no. 2, 249–269. Search in Google Scholar

[50] V. V. Zhikov, On the density of smooth functions in Sobolev–Orlicz spaces (in Russian), Zap. Nauchn. Sem. S.-Peterburg. Otdel. Mat. Inst. Steklov. (POMI) 310 (2004), 67–81, 226; translation in J. Math. Sci. (N. Y.) 132 (2006), no. 3, 285–294. Search in Google Scholar

Received: 2024-03-20
Accepted: 2024-09-24
Published Online: 2024-11-17
Published in Print: 2025-07-01

© 2024 Walter de Gruyter GmbH, Berlin/Boston

Downloaded on 6.9.2025 from https://www.degruyterbrill.com/document/doi/10.1515/acv-2024-0032/html
Scroll to top button