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6 papers · 1 filter
Conservation Laws in Cellular Automata
Marcus Pivato
If X is a discrete abelian group and B a finite set, then a cellular automaton (CA) is a continuous map F:B^X-->B^X that commutes with all X-shifts. If g is a real-valued function…
Dynamically Close Galaxy Pairs and Merger Rate Evolution in the CNOC2 Redshift Survey
D. R. Patton, C. J. Pritchet, R. G. Carlberg +8
We investigate redshift evolution in the galaxy merger and accretion rates, using a well-defined sample of 4184 galaxies with 0.12 < z < 0.55 and R_C < 21.5. We identify 88 galaxie…
Multiplicative Cellular Automata on Nilpotent Groups: Structure, Entropy, and Asymptotics
Marcus Pivato
If M is a monoid (e.g. the lattice Z^D), and G is a finite (nonabelian) group, then G^M is a compact group; a `multiplicative cellular automaton' (MCA) is a continuous transformati…
Limit Measures for Affine Cellular Automata, II
Marcus Pivato, Reem Yassawi
If M is a monoid (e.g. the lattice Z^D), and A is an abelian group, then A^M is a compact abelian group; a linear cellular automaton (LCA) is a continuous endomorphism F:A^M --> A^…
Limit Measures for Affine Cellular Automata
Marcus Pivato, Reem Yassawi
Let M be a monoid (e.g. the lattice Z^D), and A an abelian group. A^M is then a compact abelian group; a linear cellular automaton (LCA) is a continuous endomorphism F:A^M --> A^M…
Excitations in the Halo Nucleus He-6 Following The Li-7(gamma,p)He-6 Reaction
M. J. Boland, M. A. Garbu tt, R. P. Rassool +10
A broad excited state was observed in 6-He with energy E_x = 5 +/- 1 MeV and width Gamma = 3 +/- 1 MeV, following the reaction Li-7(gamma,p)He-6. The state is consistent with a num…