%0 Journal Article %A Luyen, Duong Trong %T Nontrivial solutions to boundary value problems for semilinear $\Delta _\gamma $-differential equations %J Applications of Mathematics %D 2021 %P 461-478 %V 66 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.2021.0363-19/ %R 10.21136/AM.2021.0363-19 %G en %F 10_21136_AM_2021_0363_19