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 …
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 …
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 …
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 …
We study hyperbolic systems of one-dimensional partial differential equations under general, possibly non-local boundary conditions. A large class of evolution equations, either …
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 …
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 …
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 …
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 …