%0 Journal Article %A Pal, Sourav %A Tomar, Nitin %T Characterizations and models for the $C_{1,r}$ class and quantum annulus %J Canadian mathematical bulletin %D 2025 %P 818-833 %V 68 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/S0008439525000128/ %R 10.4153/S0008439525000128 %F 10_4153_S0008439525000128