On Bochner's theorem on the critical index for multiple Fourier series

Joris, Henri2008-12-122008-12-122008-12-12196610.1007/BF01111289https://infoscience.epfl.ch/handle/20.500.14299/32643approximation and series expansionOn Bochner's theorem on the critical index for multiple Fourier seriestext::journal::journal article::research article