4 citations · 4 across the 3 of their papers we have counts for
3 papers
math.HO2024
Why Do Students (Not) Choose Second-Cycle Mathematics Studies? Questionnaire and Graduate-Tracking Evidence from Poland
Filip Turoboś, Jacek Stańdo, Żywilla Fechner +1
The Bologna Process has substantially reshaped higher education systems across Europe, including the structure of mathematical studies in Poland. One of the increasingly visible co…
math.FA2015
Sine and cosine equations on commutative hypergroups
Żywilla Fechner, László Székelyhidi
In this paper we describe the solutions of the functional equations expressing the addition theorems for sine and cosine on commutative hypergroups.
math.FA2014★ 4 cited
A Generalization of Gajda's Equation on Commutative Topological Groups
Ż. Fechner, L. Székelyhidi
In the present paper we deal with the following generalization of the sine-cosine equation \begin{equation*} \int f_1(x+y-t)+f_2(x-y+t) dμ(t)=g(x)h(y) \end{equation*} for complex v…