The note gives a simple proof of a result of M. Itô, stating that the set of divisors of a convolution kernel is a convex cone.
Amélioration d’une démonstration d’un théorème de M. Itô.
@article{AIF_1978__28_2_157_0, author = {Forst, Gunnar}, title = {On a theorem of {M.} {It\^o}}, journal = {Annales de l'Institut Fourier}, pages = {157--159}, publisher = {Institut Fourier}, address = {Grenoble}, volume = {28}, number = {2}, year = {1978}, doi = {10.5802/aif.693}, zbl = {0365.31003}, mrnumber = {58 #1208}, language = {en}, url = {https://aif.centre-mersenne.org/articles/10.5802/aif.693/} }
Forst, Gunnar. On a theorem of M. Itô. Annales de l'Institut Fourier, Volume 28 (1978) no. 2, pp. 157-159. doi : 10.5802/aif.693. https://aif.centre-mersenne.org/articles/10.5802/aif.693/