%0 Journal Article %A A. B. Shishkin %T Exponential synthesis in the kernel of a~symmetric convolution %J Zapiski Nauchnykh Seminarov POMI %D 2016 %P 129-170 %V 447 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2016_447_a9/ %G ru %F ZNSL_2016_447_a9