Acta mathematica scientia,Series B ›› 2025, Vol. 45 ›› Issue (5): 1814-1854.doi: 10.1007/s10473-025-0504-0

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ON KIRCHHOFF-HARDY TYPE PROBLEMS INVOLVING DOUBLE PHASE OPERATORS

Yun-Ho KIM1,*, Taek-Jun JEONG2, Jun-Yeob, SHIM3   

  1. 1. Department of Mathematics Education, Sangmyung University, Seoul 03016, Korea;
    2. Department of IT Convergence Software, Seoul Theological University, Bucheon 14754, Korea;
    3. Department of Mathematics, Yonsei University, Seoul 03722, Korea
  • Received:2024-07-11 Revised:2025-03-21 Online:2025-09-25 Published:2025-10-14
  • Contact: *Yun-Ho Kim, E-mail: kyh1213@smu.ac.kr
  • About author:Taek-Jun Jeong, E-mail: taekjun@stu.ac.kr; Jun-Yeob Shim, E-mail: wnsduq1185@gmail.com

Abstract: This paper is devoted to demonstrating several multiplicity results of nontrivial weak solutions to double phase problems of Kirchhoff type with Hardy potentials. The main features of the paper are the appearance of non-local Kirchhoff coefficients and the Hardy potential, the absence of the compactness condition of Palais-Smale, and the $L^{\infty}$-bound for any possible weak solution. To establish multiplicity results, we utilize the fountain theorem and the dual fountain theorem as main tools. Also, we give the $L^{\infty}$-bound for any possible weak solution by exploiting the De Giorgi iteration method and a truncated energy technique. As an application, we give the existence of a sequence of infinitely many weak solutions converging to zero in $L^{\infty}$-norm. To derive this result, we employ the modified functional method and the dual fountain theorem.

Key words: double phase problems, Musielak-Orlicz-Sobolev spaces, variational methods, multiple solutions, De Giorgi iteration method

CLC Number: 

  • 35B38
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