Frank R. Libsch, Takatoshi Tsujimura
Active Matrix Liquid Crystal Displays Technology and Applications 1997
Using 1947 work of Post showing that the word problem for semigroups is unsolvable, we explicitly exhibit an algebraic characterization of the bits of the halting probability Ω. Our proof closely follows a 1978 formulation of Post's work by M. Davis. The proof is self-contained and not very complicated.
Frank R. Libsch, Takatoshi Tsujimura
Active Matrix Liquid Crystal Displays Technology and Applications 1997
M. Tismenetsky
International Journal of Computer Mathematics
Peter Wendt
Electronic Imaging: Advanced Devices and Systems 1990
Michael E. Henderson
International Journal of Bifurcation and Chaos in Applied Sciences and Engineering