@misc{Ejsmont_Wiktor_Remarks_2015, author={Ejsmont, Wiktor}, identifier={DOI: 10.15611/dm.2015.12.06}, year={2015}, rights={Pewne prawa zastrzeżone na rzecz Autorów i Wydawcy}, publisher={Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu}, description={Didactics of Mathematics, 2015, Nr 12 (16), s. 55-60}, language={eng}, abstract={Ejsmont [2014] has shown that families of free Meixner distributions can be characterized by the conditional moments of polynomial functions of degree 3. In this paper, we will give other characterizations of the free normal distribution which are formulated in a similar spirit.}, title={Remarks on Wigner’s semicircle law}, type={artykuł}, keywords={Wigner’s semicircle law, conditional expectation, free cumulants, Laha-Lukacs theorem, noncommutative regression}, }