Pseudo almost periodic functions in Banach spaces.

*(English)*Zbl 1234.43002
New York, NY: Nova Science Publishers (ISBN 978-1-60021-637-4). xiv, 132 p. (2007).

Publisher’s description: This book provides the reader with a comprehensive and accessible introduction to the concepts of almost periodicity and pseudo almost periodicity as well as their applications to differential equations, partial differential equations, integral equations, and partial neutral functional differential equations with delay on Banach spaces. Further, the book offers various suffcient conditions, which do guarantee the existence and uniqueness of (pseudo) almost periodic solutions to the heat equation, reaction-diffusion equation, transport equation, logistic equation with delay, and neutral partial functional differential equations with delays arising in control systems. To obtain those existence results, the author makes use of various techniques such as semigroup methods combined with some classical fixed-point theorems, the so-called method of the
invariant subspaces for unbounded linear operators, Zima’s fixed-point theorem, and many more.

##### MSC:

43A60 | Almost periodic functions on groups and semigroups and their generalizations (recurrent functions, distal functions, etc.); almost automorphic functions |

34C27 | Almost and pseudo-almost periodic solutions to ordinary differential equations |

34K30 | Functional-differential equations in abstract spaces |

35B15 | Almost and pseudo-almost periodic solutions to PDEs |

46C05 | Hilbert and pre-Hilbert spaces: geometry and topology (including spaces with semidefinite inner product) |

46E30 | Spaces of measurable functions (\(L^p\)-spaces, Orlicz spaces, Köthe function spaces, Lorentz spaces, rearrangement invariant spaces, ideal spaces, etc.) |

47D06 | One-parameter semigroups and linear evolution equations |

47E05 | General theory of ordinary differential operators (should also be assigned at least one other classification number in Section 47-XX) |