6,581 research outputs found
A MARKOV CHAIN ANALYSIS OF PORK FARM SIZE DISTRIBUTIONS IN THE SOUTH: COMMENT
Livestock Production/Industries,
Random walks on semaphore codes and delay de Bruijn semigroups
We develop a new approach to random walks on de Bruijn graphs over the
alphabet through right congruences on , defined using the natural
right action of . A major role is played by special right congruences,
which correspond to semaphore codes and allow an easier computation of the
hitting time. We show how right congruences can be approximated by special
right congruences.Comment: 34 pages; 10 figures; as requested by the journal, the previous
version of this paper was divided into two; this version contains Sections
1-8 of version 1; Sections 9-12 will appear as a separate paper with extra
material adde
The semaphore codes attached to a Turing machine via resets and their various limits
We introduce semaphore codes associated to a Turing machine via resets.
Semaphore codes provide an approximation theory for resets. In this paper we
generalize the set-up of our previous paper "Random walks on semaphore codes
and delay de Bruijn semigroups" to the infinite case by taking the profinite
limit of -resets to obtain -resets. We mention how this opens new
avenues to attack the P versus NP problem.Comment: 28 pages; Sections 3-6 appeared in a previous version of
arXiv:1509.03383 as Sections 9-12 (the split of the previous paper was
suggested by the journal); Sections 1-2 and 7 are ne
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