On minimal sets of scalar parabolic equations with skew-product structures
HTML articles powered by AMS MathViewer
- by Wen Xian Shen and Yingfei Yi PDF
- Trans. Amer. Math. Soc. 347 (1995), 4413-4431 Request permission
Abstract:
Skew-product semi-flow ${\Pi _t}:X \times Y \to X \times Y$ which is generated by \[ \left \{ \begin {gathered} {u_t} = {u_{xx}} + f(y \cdot t,x,u,{u_x}),\qquad t > 0,\;0 < x < 1,\;y \in Y, \hfill \\ D\;{\text {or }}N\;{\text {boundary conditions}} \hfill \\ \end {gathered} \right .\] is considered, where $X$ is an appropriate subspace of ${H^2}(0,1),\;(Y, \mathbb {R})$ is a minimal flow with compact phase space. It is shown that a minimal set $E \subset X \times Y$ of ${\Pi _t}$ is an almost $1{\text { - }}1$ extension of $Y$, that is, set ${Y_0} = \{ y \in Y|\operatorname {card} (E \subset {P^{ - 1}}(y)) = 1\}$ is a residual subset of $Y$, where $P:X \times Y \to Y$ is the natural projection. Consequently, if $(Y,\mathbb {R})$ is almost periodic minimal, then any minimal set $E \subset X \times Y$ of ${\Pi _t}$ is an almost automorphic minimal set. It is also proved that dynamics of ${\Pi _t}$ is closed in the category of almost automorphy, that is, a minimal set $E \subset X \times Y$ of ${\Pi _t}$ is almost automorphic minimal if and only if $(Y,\mathbb {R})$ is almost automorphic minimal. Asymptotically almost periodic parabolic equations and certain coupled parabolic systems are discussed. Examples of nonalmost periodic almost automorphic minimal sets are provided.References
- Sigurd Angenent, The zero set of a solution of a parabolic equation, J. Reine Angew. Math. 390 (1988), 79–96. MR 953678, DOI 10.1515/crll.1988.390.79
- S. B. Angenent and B. Fiedler, The dynamics of rotating waves in scalar reaction diffusion equations, Trans. Amer. Math. Soc. 307 (1988), no. 2, 545–568. MR 940217, DOI 10.1090/S0002-9947-1988-0940217-X
- Jean-Pierre Aubin and Ivar Ekeland, Applied nonlinear analysis, Pure and Applied Mathematics (New York), John Wiley & Sons, Inc., New York, 1984. A Wiley-Interscience Publication. MR 749753
- S. Bochner, A new approach to almost periodicity, Proc. Nat. Acad. Sci. U.S.A. 48 (1962), 2039–2043. MR 145283, DOI 10.1073/pnas.48.12.2039
- P. Brunovský, P. Poláčik, and B. Sandstede, Convergence in general periodic parabolic equations in one space dimension, Nonlinear Anal. 18 (1992), no. 3, 209–215. MR 1148285, DOI 10.1016/0362-546X(92)90059-N
- Nathaniel Chafee, Asymptotic behavior for solutions of a one-dimensional parabolic equation with homogeneous Neumann boundary conditions, J. Differential Equations 18 (1975), 111–134. MR 369922, DOI 10.1016/0022-0396(75)90084-4
- Mingxiang Chen, Xu-Yan Chen, and Jack K. Hale, Structural stability for time-periodic one-dimensional parabolic equations, J. Differential Equations 96 (1992), no. 2, 355–418. MR 1156666, DOI 10.1016/0022-0396(92)90159-K X.-Y. Chen, A strong unique continuation theorem for parabolic equations, (submitted).
- Xu-Yan Chen and Hiroshi Matano, Convergence, asymptotic periodicity, and finite-point blow-up in one-dimensional semilinear heat equations, J. Differential Equations 78 (1989), no. 1, 160–190. MR 986159, DOI 10.1016/0022-0396(89)90081-8 X. Y. Chen and P. Poláčik, Gradient-like structure and Morse decompositions for time-periodic one-dimensional parabolic equations, Preprint (1993).
- Shui-Nee Chow, Kening Lu, and John Mallet-Paret, Floquet theory for parabolic differential equations, J. Differential Equations 109 (1994), no. 1, 147–200. MR 1272403, DOI 10.1006/jdeq.1994.1047 —, Floquet bundles for scalar parabolic equations, Preprint. E. N. Dancer, On the existence of two-dimensional invariant tori for scalar parabolic equations with periodic coefficients, Preprint.
- E. N. Dancer and P. Hess, Stable subharmonic solutions in periodic reaction-diffusion equations, J. Differential Equations 108 (1994), no. 1, 190–200. MR 1268358, DOI 10.1006/jdeq.1994.1032
- Robert Ellis, Lectures on topological dynamics, W. A. Benjamin, Inc., New York, 1969. MR 0267561
- Robert Ellis, The Veech structure theorem, Trans. Amer. Math. Soc. 186 (1973), 203–218 (1974). MR 350712, DOI 10.1090/S0002-9947-1973-0350712-1
- Bernold Fiedler and John Mallet-Paret, A Poincaré-Bendixson theorem for scalar reaction diffusion equations, Arch. Rational Mech. Anal. 107 (1989), no. 4, 325–345. MR 1004714, DOI 10.1007/BF00251553
- A. M. Fink, Almost periodic differential equations, Lecture Notes in Mathematics, Vol. 377, Springer-Verlag, Berlin-New York, 1974. MR 0460799
- Avner Friedman, Partial differential equations of parabolic type, Prentice-Hall, Inc., Englewood Cliffs, N.J., 1964. MR 0181836
- Jack K. Hale, Asymptotic behavior of dissipative systems, Mathematical Surveys and Monographs, vol. 25, American Mathematical Society, Providence, RI, 1988. MR 941371, DOI 10.1090/surv/025
- Daniel Henry, Geometric theory of semilinear parabolic equations, Lecture Notes in Mathematics, vol. 840, Springer-Verlag, Berlin-New York, 1981. MR 610244
- Russell A. Johnson, Concerning a theorem of Sell, J. Differential Equations 30 (1978), no. 3, 324–339. MR 521857, DOI 10.1016/0022-0396(78)90004-9
- Russell A. Johnson, On a Floquet theory for almost-periodic, two-dimensional linear systems, J. Differential Equations 37 (1980), no. 2, 184–205. MR 587221, DOI 10.1016/0022-0396(80)90094-7
- Russell A. Johnson, A linear, almost periodic equation with an almost automorphic solution, Proc. Amer. Math. Soc. 82 (1981), no. 2, 199–205. MR 609651, DOI 10.1090/S0002-9939-1981-0609651-0
- Russell A. Johnson, On almost-periodic linear differential systems of Millionshchikov and Vinograd, J. Math. Anal. Appl. 85 (1982), no. 2, 452–460. MR 649185, DOI 10.1016/0022-247X(82)90011-7
- B. M. Levitan and V. V. Zhikov, Almost periodic functions and differential equations, Cambridge University Press, Cambridge-New York, 1982. Translated from the Russian by L. W. Longdon. MR 690064
- Hiroshi Matano, Nonincrease of the lap-number of a solution for a one-dimensional semilinear parabolic equation, J. Fac. Sci. Univ. Tokyo Sect. IA Math. 29 (1982), no. 2, 401–441. MR 672070
- Hiroshi Matano, Convergence of solutions of one-dimensional semilinear parabolic equations, J. Math. Kyoto Univ. 18 (1978), no. 2, 221–227. MR 501842, DOI 10.1215/kjm/1250522572 —, Asymptotic behavior of solutions of semilinear heat equations on the circle (W. M. Ni, L. A. Peletier, J. Serrin, eds.), Nonlinear Diffusion Equations and Their Equilibrium States, Springer-Verlag, New York, 1986.
- Peter Poláčik, Convergence in smooth strongly monotone flows defined by semilinear parabolic equations, J. Differential Equations 79 (1989), no. 1, 89–110. MR 997611, DOI 10.1016/0022-0396(89)90115-0
- Peter Poláčik, Complicated dynamics in scalar semilinear parabolic equations in higher space dimension, J. Differential Equations 89 (1991), no. 2, 244–271. MR 1091478, DOI 10.1016/0022-0396(91)90121-O
- Murray H. Protter and Hans F. Weinberger, Maximum principles in differential equations, Prentice-Hall, Inc., Englewood Cliffs, N.J., 1967. MR 0219861
- Robert J. Sacker and George R. Sell, Lifting properties in skew-product flows with applications to differential equations, Mem. Amer. Math. Soc. 11 (1977), no. 190, iv+67. MR 448325, DOI 10.1090/memo/0190
- Björn Sandstede and Bernold Fiedler, Dynamics of periodically forced parabolic equations on the circle, Ergodic Theory Dynam. Systems 12 (1992), no. 3, 559–571. MR 1182662, DOI 10.1017/S0143385700006933
- George R. Sell, Topological dynamics and ordinary differential equations, Van Nostrand Reinhold Mathematical Studies, No. 33, Van Nostrand Reinhold Co., London, 1971. MR 0442908 K. Schmitt and J. R. Ward, Jr., Periodic and almost periodic solutions of nonlinear evolution equations, Preprint.
- Wen Xian Shen and Yingfei Yi, Dynamics of almost periodic scalar parabolic equations, J. Differential Equations 122 (1995), no. 1, 114–136. MR 1356132, DOI 10.1006/jdeq.1995.1141
- Wen Xian Shen and Yingfei Yi, Asymptotic almost periodicity of scalar parabolic equations with almost periodic time dependence, J. Differential Equations 122 (1995), no. 2, 373–397. MR 1355896, DOI 10.1006/jdeq.1995.1152
- W. A. Veech, Almost automorphic functions on groups, Amer. J. Math. 87 (1965), 719–751. MR 187014, DOI 10.2307/2373071
- William A. Veech, Point-distal flows, Amer. J. Math. 92 (1970), 205–242. MR 267560, DOI 10.2307/2373504
- W. A. Veech, Almost automorphic functions, Proc. Nat. Acad. Sci. U.S.A. 49 (1963), 462–464. MR 152830, DOI 10.1073/pnas.49.4.462
- Pierre-A. Vuillermot, Almost-periodic attractors for a class of nonautonomous reaction-diffusion equations on $\textbf {R}^N$. I. Global stabilization processes, J. Differential Equations 94 (1991), no. 2, 228–253. MR 1137614, DOI 10.1016/0022-0396(91)90091-M —, Almost-periodic attractors for a class of nonautonomous reaction-diffusion equations on ${\mathbb {R}^N}$, II. Codimension-one stable manifolds, Preprint; III. Center curves and Liapunov stability, Preprint.
- James R. Ward Jr., Bounded and almost periodic solutions of semi-linear parabolic equations, Rocky Mountain J. Math. 18 (1988), no. 2, 479–494. Nonlinear Partial Differential Equations Conference (Salt Lake City, UT, 1986). MR 951948, DOI 10.1216/RMJ-1988-18-2-479
- Yingfei Yi, A generalized integral manifold theorem, J. Differential Equations 102 (1993), no. 1, 153–187. MR 1209981, DOI 10.1006/jdeq.1993.1026
Additional Information
- © Copyright 1995 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 347 (1995), 4413-4431
- MSC: Primary 58F39; Secondary 34C27, 35B40, 35K55, 54H20, 58F27
- DOI: https://doi.org/10.1090/S0002-9947-1995-1311916-9
- MathSciNet review: 1311916