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Browsing by Author Łukasik, Radosław

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Showing results 1 to 14 of 14
Issue DateTitleAuthor(s)
2022A Functional Equation with Biadditive FunctionsŁukasik, Radosław
2018A note on functional equations connected with the Cauchy mean value theoremŁukasik, Radosław
2016A note on the orthogonality equation with two functionsŁukasik, Radosław
2016Decomposition of two functions in the orthogonality equationŁukasik, Radosław; Wójcik, Paweł
2020D’Alembert’s and Wilson’s equations on semigroupsŁukasik, Radosław
2020Functions Preserving the BiadditivityŁukasik, Radosław; Wójcik, Paweł
2017Invariant means on Banach spacesŁukasik, Radosław
2022Invariant vector means and complementability of Banach spaces in their second dualsŁukasik, Radosław
2018On an equation of Sophie GermainŁukasik, Radosław; Sikorska, Justyna; Szostok, Tomasz
2022Report of Meeting: The Twenty-first Katowice–Debrecen Winter Seminar on Functional Equations and Inequalities Brenna (Poland), February 2–5, 2022Łukasik, Radosław
2012Some generalization of Cauchy's and the quadratic functional equationsŁukasik, Radosław
2015Some generalization of Cauchy’s and Wilson’s functional equations on abelian groupsŁukasik, Radosław
2014Some generalization of the quadratic and Wilson's functional equationŁukasik, Radosław
2013Wspólne uogólnienie równania funkcjonałów kwadratowych i równania WilsonaŁukasik, Radosław