“…However, these studies did not use the above definition of conditional Ulam stability. The papers [5,6,7,8,9,14,16,22,28,27,30,29,36,49] are the latest studies on Ulam stability for linear differential and difference equations. In addition, research on Ulam stability for fractional differential and difference equations has increased, e.g., [1,11,13,15,20,45,47].…”