New oscillation and nonoscillation criteria for linear difference equation $$ \trr^2 u_k+p_k u_{k+1}=0 $$ are established via the Riccati technique.
New oscillation and nonoscillation criteria for linear difference equation $$ \trr^2 u_k+p_k u_{k+1}=0 $$ are established via the Riccati technique. (en)
New oscillation and nonoscillation criteria for linear difference equation $$ \trr^2 u_k+p_k u_{k+1}=0 $$ are established via the Riccati technique. (cs)