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APPLICATION OF ROTHE'S METHOD TO A NONLINEAR WAVE EQUATION ON GRAPHS

  • Lin, Yong (Yau Mathematical Sciences Center Tsinghua University) ;
  • Xie, Yuanyuan (Department of Mathematics Tianjin University of Finance and Economics, School of Mathematics Renmin University of China)
  • Received : 2021.06.08
  • Accepted : 2021.11.03
  • Published : 2022.05.31

Abstract

We study a nonlinear wave equation on finite connected weighted graphs. Using Rothe's and energy methods, we prove the existence and uniqueness of solution under certain assumption. For linear wave equation on graphs, Lin and Xie [10] obtained the existence and uniqueness of solution. The main novelty of this paper is that the wave equation we considered has the nonlinear damping term |ut|p-1·ut (p > 1).

Keywords

Acknowledgement

This work is supported by the National Science Foundation of China [12071245].

References

  1. J. Friedman and J.-P. Tillich, Wave equations for graphs and the edge-based Laplacian, Pacific J. Math. 216 (2004), no. 2, 229-266. https://doi.org/10.2140/pjm.2004.216.229
  2. A. Grigoryan, Introduction to Analysis on Graphs, University Lecture Series, 71, American Mathematical Society, Providence, RI, 2018. https://doi.org/10.1090/ulect/071
  3. A. Grigoryan, Y. Lin, and Y. Yang, Yamabe type equations on graphs, J. Differential Equations 261 (2016), no. 9, 4924-4943. https://doi.org/10.1016/j.jde.2016.07.011
  4. A. Grigoryan, Y. Lin, and Y. Yang, Kazdan-Warner equation on graph, Calc. Var. Partial Differential Equations 55 (2016).
  5. A. Grigoryan, Y. Lin, and Y. Yang, Existence of positive solutions to some nonlinear equations on locally finite graphs, Sci. China Math. 60 (2017), no. 7, 1311-1324. https://doi.org/10.1007/s11425-016-0422-y
  6. X. Han, M. Shao, and L. Zhao, Existence and convergence of solutions for nonlinear biharmonic equations on graphs, J. Differential Equations 268 (2020), no. 7, 3936-3961. https://doi.org/10.1016/j.jde.2019.10.007
  7. A. Huang, Y. Lin, and S.-T. Yau, Existence of solutions to mean field equations on graphs, Comm. Math. Phys. 377 (2020), no. 1, 613-621. https://doi.org/10.1007/s00220-020-03708-1
  8. J. Kacur, Application of Rothe's method to perturbed linear hyperbolic equations and variational inequalities, Czechoslovak Math. J. 34(109) (1984), no. 1, 92-106. https://doi.org/10.21136/cmj.1984.101928
  9. Y. Lin and Y. Wu, The existence and nonexistence of global solutions for a semilinear heat equation on graphs, Calc. Var. Partial Differential Equations 56 (2017), no. 4, Paper No. 102, 22 pp. https://doi.org/10.1007/s00526-017-1204-y
  10. Y. Lin and Y. Xie, The existence of the solution of the wave equation on graphs, Submitted.
  11. J.-L. Lions, Quelques methodes de resolution des problemes aux limites non lineaires, Dunod, 1969.
  12. K. Rektorys, On application of direct variational methods to the solution of parabolic boundary value problems of arbitrary order in the space variables, Czechoslovak Math. J. 21(96) (1971), 318-339. https://doi.org/10.21136/CMJ.1971.101024
  13. E. Rothe, Two-dimensional parabolic boundary value problems as a limiting case of one-dimensional boundary value problems, Math. Ann. 102 (1930), 650-670. https://doi.org/10.1007/BF01782368
  14. A. Weber, Analysis of the physical Laplacian and the heat flow on a locally finite graph, J. Math. Anal. Appl. 370 (2010), no. 1, 146-158. https://doi.org/10.1016/j.jmaa.2010.04.044