SCIENTIFIC WORKS, VOL. 40, BOOK 3, 2025 – MATHEMATICS

Valentin Georgiev, Vasil Zhelinski, Boyan Zlatanov
Best Proximity Pairs of Noncyclic Mappings with a Cotractive Iterate on P Steps

Hristo Kiskinov, Milena Petkova, Andrey Zahariev
Why and How the Definition of the Conformable Derivative in the Lower Terminal Should be Changed

Snezhana Hristova
Boundary Value Problems for Difference Equations and Ulam-Hyers Stability

Sofia Ducheva, Marta Teofilova
On Some Examples of Complex Norden Manifolds