Matrix transforms between speed-maddox spaces over ultrametric fieldNatarajan, Pinnangudi N.; Aasma, AntsFacta Universitatis, Series : Mathematics and Informatics2025 / p. 1167-1181 https://doi.org/10.22190/FUMI250103078N https://casopisi.junis.ni.ac.rs/index.php/FUMathInf/article/view/13364/pdf