stylistic:tone, structural:expansion, linguistic:voice_change, linguistic:paraphrasing, information:filtering
Valiron's method

Valiron's method is a generalization of Borel summation to certain more general integral functions J. Valiron showed that under certain conditions it is equivalent to defining the sum of a series as

where H is the second derivative of G and c (n) = e, and a +... + a is to be interpreted as 0 when h < 0.