The Delphi method has emerged as a versatile tool to synthesise expert opinion in situations where empirical evidence is either incomplete or rapidly evolving. In both health and education, this ...
Given a sequence $\{x_n\}^\infty_{n=0}$ in a Banach space, it is well known that if there is a sequence $\{t_n\}^\infty_{n=0}$ such that $\|x_{n+1} - x_n\| \leqslant ...