Content of review 1, reviewed on May 12, 2021

Review Manuscript ID: symmetry-1215635 Type of manuscript: Article Title: New Results on Qualitative Behavior of Second Order Nonlinear Neutral Impulsive Differential Systems with Canonical and Non-canonical Conditions Authors: Shyam Sundar Santra, Khaled Mohamed Khedher, Hijaz Ahmad Submitted to the section: Mathematics and Symmetry, The Qualitative Theory of Functional Differential Equations and their Applications Date: 12 May 2021

The article describes sufficient conditions for a second-order ODE. Here are some minor remarks:

  • Line 5: What is E?

  • Line 6: What is \delta \prime?

  • Line 15: also appear

  • Line 56: (??) respectively

  • Line 69: subsections

  • Line 75: is p real?

  • After Line 84: minimum over what? Over \zeta \in \Real and over \phi_\iota in \Real?

  • After Line 85: \varepsilon should be in TeX mode.

  • Line 99: maximum over what? over \eta \in \Real?

  • Line 197--201: remove double semicolons.

Source

    © 2021 the Reviewer.

References

    Sundar, S. S., Mohamed, K. K., Kamsing, N., Hijaz, A. 2021. New Results on Qualitative Behavior of Second Order Nonlinear Neutral Impulsive Differential Systems with Canonical and Non-Canonical Conditions. Symmetry.