Positive operator semigroups

A Bátkai, MK Fijavž, A Rhandi - Operator Theory: advances and …, 2017 - Springer
This book is devoted to positive linear dynamical systems appearing frequently in
mathematical models of various real-life problems. Here we present an operator theoretic …

[图书][B] Semigroup methods for evolution equations on networks

D Mugnolo - 2014 - Springer
In order to become worldly things, that is, deeds and facts and events and patterns of
thoughts or ideas,[action, speech, and thought] must first be seen, heard, and remembered …

[HTML][HTML] Eventually and asymptotically positive semigroups on Banach lattices

D Daners, J Glück, JB Kennedy - Journal of Differential Equations, 2016 - Elsevier
We develop a theory of eventually positive C 0-semigroups on Banach lattices, that is, of
semigroups for which, for every positive initial value, the solution of the corresponding …

A hybrid-dG method for singularly perturbed convection-diffusion equations on pipe networks

H Egger, N Philippi - ESAIM: Mathematical Modelling and …, 2023 - esaim-m2an.org
We study the numerical approximation of singularly perturbed convection-diffusion problems
on one-dimensional pipe networks. In the vanishing diffusion limit, the number and type of …

[PDF][PDF] Invariant sets and long time behaviour of operator semigroups

J Glück - 2017 - oparu.uni-ulm.de
In this PhD thesis, strongly continuous operator semigroups are studied. We show that
contractivity or positivity of such a semigroup can have a profound impact on its long time …

Linear hyperbolic systems on networks: well-posedness and qualitative properties

MK Fijavž, D Mugnolo, S Nicaise - ESAIM: Control, Optimisation …, 2021 - esaim-cocv.org
We study hyperbolic systems of one-dimensional partial differential equations under
general, possibly non-local boundary conditions. A large class of evolution equations, either …

Asymptotic state lumping in transport and diffusion problems on networks with applications to population problems

J Banasiak, A Falkiewicz… - Mathematical Models and …, 2016 - World Scientific
In this paper we consider a general macro-model describing a metapopulation consisting of
several interacting with each other subpopulations connected through a network, with the …

On the transport limit of singularly perturbed convection–diffusion problems on networks

H Egger, N Philippi - Mathematical Methods in the Applied …, 2021 - Wiley Online Library
We consider singularly perturbed convection–diffusion equations on one‐dimensional
networks (metric graphs) as well as the transport problems arising in the vanishing diffusion …

Asymptotic behaviour of flows on reducible networks

J Banasiak, P Namayanja - Networks and Heterogeneous Media, 2014 - aimsciences.org
In this paper we extend some of the previous results for a system of transport equations on a
closed network. We consider the Cauchy problem for a flow on a reducible network; that is, a …

A Lumer–Phillips type generation theorem for bi-continuous semigroups

C Budde, SA Wegner - Zeitschrift für Analysis und ihre Anwendungen, 2022 - ems.press
The famous 1960s Lumer–Phillips theorem states that a closed and densely defined
operator AWD. A/Â X! X on a Banach space X generates a strongly continuous contraction …