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Browsing by Subject "test function"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Asymptotic properties of solutions of some interative functional inequalities
    (2008) Brydak, Dobiesław; Choczewski, Bogdan; Czerni, Marek
    Continuous solutions of iterative linear inequalities of the first and second order are considered, belonging to a class $\mathcal{F}_T$ of functions behaving at the origin as a prescribed function $T$.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Uniqueness of solution of a nonlinear evolution dam problem in a heterogeneous porous medium
    (Wydawnictwa AGH, 2022) Attia, Messaouda Ben; Zaouche, Elmehdi; Bousselsal, Mahmoud
    By choosing convenient test functions and using the method of doubling variables, we prove the uniqueness of the solution to a nonlinear evolution dam problem in an arbitrary heterogeneous porous medium of $\mathbb{R}^{n}$ ($n \in \{2,3\}$) with an impermeable horizontal bottom.