Electronic Journal of Differential Equations,
Vol. 2003(2003), No. 47, pp. 1-25.

Title: Oscillation for equations with positive and negative coefficients
       and distributed delay II: Applications

Authors: Leonid Berezansky (Ben-Gurion Univ. of the Negev, Israel)
         Elena Braverman (Univ. of Calgary, Canada)

Abstract: 
  We apply the results of our previous paper "Oscillation of equations
  with positive and negative coefficients and distributed delay I:
  General results" to the study of oscillation properties of equations
  with several delays and positive and negative coefficients
  $$
  \dot{x}(t) + \sum_{k=1}^n a_k(t) x(h_k(t)) -
  \sum_{l=1}^m b_l(t) x(g_l(t)) = 0, \quad a_k(t) \geq 0, b_l(t) \geq 0,
  $$
  integrodifferential equations with oscillating kernels
  and mixed equations combining two above equations.
  Comparison theorems, explicit non-oscillation and oscillation results
  are  presented.
 
Submitted February 14, 2003. Published April 24, 2003.
Math Subject Classifications: 34K11, 34K15.
Key Words: Oscillation; non-oscillation; distributed delay;
           equations with several delays; integrodifferential equations.