The aim of this special issue is to report on the latest achievements in the qualitative and quantitative analysis of functional differential and difference equations. It will reflect both the state-of-the-art theoretical research and important recent advances in applications.

Differential and difference equations are a backbone for many applied problems encountered in mathematical biology, physics, medicine, social sciences, engineering, economy, and many other disciplines. It is important to develop new theories and methods, as well as to modify and refine the well-known techniques for the analysis of new classes of problems.

Submissions for this special issue should be of high quality and focus on the analysis of qualitative and quantitative properties of functional differential and difference equations as specified by the following list of topics currently attracting most attention. It may, however, be still extended to include some other topics related to differential and difference equations that fall within the scope of Abstract and Applied Analysis:

• Asymptotic behavior of solutions
• Periodic and almost periodic solutions
• Nonoscillation and oscillation properties
• Representation of solutions
• Boundary-value problems
• Stability theory
• Numerical algorithms and computational aspects
• Applications to real world phenomena