Hanyang University repository

-Subject

• 186 Hyers-Ulam stability
• 58 fixed point
• 37 fixed point method
• 19 Banach space
• 19 Fixed point
• 18 direct method
• 16 quadratic functional equation
• 13 non-Archimedean normed space
• 12 fuzzy Banach space
• 11 additive mapping