-
Turing degrees of multidimensional subshifts
International audience -
L'environnement providence
We discuss, by a philosophical method inspired of Quine, the nature of the risk posed by GMOs. Our analysis concludes to the religious origin of the belief of... -
The 4-way deterministic Periodic Domino Problem is undecidable
The most fundamental undecidable question on tilings is the Domino Problem that asks whether a Wang tileset tiles the discrete plane. Lukkarila proved in 2009 that it...
