Oscillation theorems for general quasilinear second-order difference equations
The authors consider difference equations of the form Delta (a(n)(Deltay(n))(alpha)) + phi (n, y(n),Deltay(n)) + q(n)f(y(n+1)) = 0, where a(n) > 0, q(n) > 0, f, and phi are continuous real valued functions, and uf(u) > 0 for u not equal 0. They give oscillation results for equation (E). Examples are included to illustrate the results. (C) 2001 Elsevier Science Ltd. All rights reserved.
oscillation quasilinear difference equations second order