TY - JOUR AU - Ramos Calle, Higinio AU - Moaaz, Osama AU - Muhib, Ali AU - Awrejcewicz, Jan PY - 2021 UR - http://hdl.handle.net/10366/156643 AB - [EN]In this work, we address an interesting problem in studying the oscillatory behavior of solutions of fourth-order neutral delay differential equations with a non-canonical operator. We obtained new criteria that improve upon previous results in... LA - eng PB - MDPI KW - Neutral differential equations KW - Fourth order KW - Oscillatory behavior KW - Non-canonical case TI - More Effective Results for Testing Oscillation of Non-Canonical Neutral Delay Differential Equations. DO - 10.3390/math9101114 T2 - Mathematics VL - 9 M2 - 1114 ER -