Abstract
This paper deals with a semilinear parabolic system with reaction terms \({v^p, u^q}\) and a free boundary \({x = s(t)}\) in one space dimension, where \({s(t)}\) evolves according to the free boundary condition \({s'(t) = -\mu(u_x + \rho v_x)}\). The main aim of this paper was to study the existence, uniqueness, regularity and long-time behavior of positive solution (maximal positive solution). Firstly, we prove that this problem has a unique positive solution when \({p, q \geq 1}\), and a (unique) maximal positive solution when \({p < 1}\) or \({q < 1}\). Then, we study the regularity of \({(u,v)}\) and \({s}\). At last, we discuss the global existence, finite-time blowup of the unique positive solution (maximal positive solution) and long-time behavior of bounded global solution.
Similar content being viewed by others
References
Bunting G., Du Y.H., Krakowski K.: Spreading speed revisited: analysis of a free boundary model. Netw. Heterog. Media 7, 583–603 (2012)
Caffarelli, L., Salsa, S.: A Geometric Approach to Free Boundary Problems. Graduate Studies in Mathematics, vol. 68. American Mathematical Society, Providence (2005)
Caristi G., Mitidieri E.: Blow-up estimates of positive solutions of a parabolic system. J. Differ. Equ. 113, 265–271 (1994)
Chen X.F., Friedman A.: A free boundary problem arising in a model of wound healing. SIAM J. Math. Anal. 32(4), 778–800 (2000)
Crank J.: Free and Moving Boundary Problem. Clarendon Press, Oxford (1984)
Du Y.H., Guo Z.M.: Spreading–vanishing dichotomy in a diffusive logistic model with a free boundary, II. J. Differ. Equa. 250, 4336–4366 (2011)
Du Y.H., Guo Z.M., Peng R.: A diffusive logistic model with a free boundary in time-periodic environment. J. Funct. Anal. 265, 2089–2142 (2013)
Du Y.H., Lin Z.G.: Spreading–vanishing dichotomy in the diffusive logistic model with a free boundary. SIAM J. Math. Anal. 42, 377–405 (2010)
Du Y.H., Lin Z.G.: A diffusive competition model with a free boundary: invasion of a superior or inferior competition. Discrete Cont. Dyn. Syst. Ser. B 19(10), 3105–3132 (2014)
Escobedo M., Herrero M.A.: A uniqueness result for a semilinear reaction–diffusion system. Proc. Am. Math. Soc. 112(1), 175–185 (1991)
Escobedo M., Herrero M.A.: Boundedness and blow up for a semilinear reaction–diffusion system. J. Differ. Equ. 89, 176–202 (1991)
Escobedo M., Herrero M.A.: A semilinear parabolic system in a bounded domain. Annali di Matematica pura ed applicata (IV) CLXV, 315–336 (1993)
Fila M., Souplet P.: Existence of global solutions with slow decay and unbounded free boundary for a superlinear Stefan problem. Interfaces Free Bound. 3, 337–344 (2001)
Friedman A.: Partial Differential Equations of Parabolic Type. Prentice-Hall, Englewood Cliffs (1964)
Friedman A., Giga Y.: A single point blow-up for solutions of semilinear parabolic systems. J. Fac. Sci. Univ. Tokyo Sect. IA Math. 34, 65–79 (1987)
Friedman A., Hu B., Xue C.: Analysis of a mathematical model of ischemic cutaneous wounds. SIAM J. Math. Anal. 42, 2013–2040 (2010)
Ghidouche H., Souplet P., Tarzia D.: Decay of global solutions, stability and blow-up for a reaction–diffusion problem with free boundary. Proc. Am. Math. Soc. 129(3), 781–792 (2000)
Guo J.S., Wu C.H.: On a free boundary problem for a two-species weak competition system. J. Dyn. Differ. Equ. 24, 873–895 (2012)
Guyonne V., Lorenzi L.: Instability in a flame ball problem. Discrete Contin. Dyn. Syst. B 7, 315–355 (2007)
Kaneko Y.: Spreading and vanishing behaviors for radially symmetric solutions of free boundary problems for reaction–diffusion equations. Nonlinear Anal.: Real World Appl. 18, 121–140 (2014)
Kaneko Y., Yamada Y.: A free boundary problem for a reaction diffusion equation appearing in ecology. Adv. Math. Sci. Appl. 21(2), 467–492 (2011)
Ladyzenskaja O.A., Solonnikov V.A., Uralceva N.N.: Linear and Quasilinear Equations of Parabolic Type. Academic Press, New York (1968)
Marinoschi G.: Well posedness of a time-difference scheme for a degenerate fast diffusion problem. Discrete Contin. Dyn. Syst. Ser. B 13, 435–454 (2010)
Merz W., Rybka P.: A free boundary problem describing reaction–diffusion problems in chemical vapor infiltration of pyrolytic carbon. J. Math. Anal. Appl. 292, 571–588 (2004)
Peng R., Zhao X.Q.: The diffusive logistic model with a free boundary and seasonal succession. Discrete Cont. Dyn. Syst. A 33(5), 2007–2031 (2013)
Ricci R., Tarzia D.A.: Asymptotic behavior of the solutions of the dead-core problem. Nonlinear Anal. 13, 439–456 (1983)
Rubinstein L.I.: The Stefan Problem. American Mathematical Society, Providence (1971)
Schaeffer D.G.: A new proof of the infinite differentiability of the free boundary in the Stefan problem. J. Differ. Equ. 20, 266–269 (1976)
Souplet P.: Stability and continuous dependence of solutions of one-phase Stefan problems for semilinear parabolic equations. Port. Math. 59, 315–323 (2002)
Wang M.X.: On some free boundary problems of the prey–predator model. J. Differ. Equ. 256(10), 3365–3394 (2014)
Wang M.X.: The diffusive logistic equation with a free boundary and sign-changing coefficient. J. Differ. Equ. 258(4), 1252–1266 (2015)
Wang M.X.: Spreading and vanishing in the diffusive prey–predator model with a free boundary. Commun. Nonlinear Sci. Numer. Simul. 23, 311–327 (2015)
Wang M.X., Zhang Y.: Two kinds of free boundary problems for the diffusive prey–predator model. Nonlinear Anal.: Real World Appl. 24, 73–82 (2015)
Wang M.X., Zhao J.F.: Free boundary problems for a Lotka–Volterra competition system. J. Dyn. Differ. Equ. 26(3), 655–672 (2014)
Wang, M.X., Zhao, J.F.: A Free Boundary Problem for a Predator–Prey Model with Double Free Boundaries. arXiv:1312.7751 [math.DS]
Zhang Q.Y., Lin Z.G.: Blowup, global fast and slow solutions to a parabolic system with double fronts free boundary. Discrete Contin. Dyn. Syst. B 17(1), 429–444 (2012)
Zhao J.F., Wang M.X.: A free boundary problem of a predator–prey model with higher dimension and heterogeneous environment. Nonlinear Anal.: Real World Appl. 16, 250–263 (2014)
Zhou P., Lin Z.G.: Global existence and blowup of a nonlocal problem in space with free boundary. J. Funct. Anal. 262, 3409–3429 (2012)
Author information
Authors and Affiliations
Corresponding author
Additional information
This work was supported by NSFC Grant 11371113.
Rights and permissions
About this article
Cite this article
Wang, M., Zhao, Y. A semilinear parabolic system with a free boundary. Z. Angew. Math. Phys. 66, 3309–3332 (2015). https://doi.org/10.1007/s00033-015-0582-2
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00033-015-0582-2