Positive product formulas and hypergroups associated with singular Sturm-Liouville problems on a compact interval

Wydawnictwa / Czasopisma IMPAN / Colloquium Mathematicum / Wszystkie zeszyty

William C. Connett, Alan L. Schwartz Colloquium Mathematicum 60 (1990), 525-535 DOI: 10.4064/cm-60-61-2-525-535