Differential Equations & Applications · Volume 7, Issue 3 Oscillation criteria for odd higher order nonlinear neutral differential equations with positive and negative coefficients 07-21 Pages 363-384 DOI 10.7153/dea-07-21 Downloads Short PDF Full PDF PNG Authors Saroj Panigrahi Rakhee Basu Keywords functional differential equations neutral nonlinear oscillation positive and negative coefficients Subject classes 34C10 34C15 34K11