SCIENTIFIC WORKS, VOL. 41, BOOK 3, 2026 – MATHEMATICS

Atanaska Georgieva, Yordanka Gudalova
Fuzzy natural transform to solve Volterra integro-differential equations, 1-17

Atanas Ilchev, Hristo Kiskinov, Hristina Kulina, Boyan Zlatanov
Reich and Bianchini contractivity forfinite-observation conditional guarded language operators, 18-33