09/09/2022, 12:24 AM
As for divergent summations I wanted to say something long ago but it was already said elsewhere :
" repeated borel summation "
@MISC {4246080,
TITLE = {Has someone seen a discussion of the (divergent) summation of \(\sum\limits_{k=0}^\infty (-1)^k (k!)^2 \)?},
AUTHOR = {Caleb Briggs (https://math.stackexchange.com/users/709...leb-briggs)},
HOWPUBLISHED = {Mathematics Stack Exchange},
NOTE = {URL:https://math.stackexchange.com/q/4246080 (version: 2021-09-30)},
EPRINT = {https://math.stackexchange.com/q/4246080},
URL = {https://math.stackexchange.com/q/4246080}
}
https://math.stackexchange.com/questions...limits-k-0
***
the validity of the borel summations matches the number of solutions for fractional iterates when taking in the correct direction.
nice.
***
sorry if im repeating said things , i have to catch up on reading ...
regards
tommy1729
" repeated borel summation "
@MISC {4246080,
TITLE = {Has someone seen a discussion of the (divergent) summation of \(\sum\limits_{k=0}^\infty (-1)^k (k!)^2 \)?},
AUTHOR = {Caleb Briggs (https://math.stackexchange.com/users/709...leb-briggs)},
HOWPUBLISHED = {Mathematics Stack Exchange},
NOTE = {URL:https://math.stackexchange.com/q/4246080 (version: 2021-09-30)},
EPRINT = {https://math.stackexchange.com/q/4246080},
URL = {https://math.stackexchange.com/q/4246080}
}
https://math.stackexchange.com/questions...limits-k-0
***
the validity of the borel summations matches the number of solutions for fractional iterates when taking in the correct direction.
nice.
***
sorry if im repeating said things , i have to catch up on reading ...
regards
tommy1729

