Zobrazeno 1 - 10
of 305 453
pro vyhledávání: '"Parikh, A"'
Autor:
Fazekas, Szilárd Zsolt, Huang, Xinhao
We introduce and study a generalized Parikh matrix mapping based on tracking the occurrence counts of special types of subsequences. These matrices retain more information about a word than the original Parikh matrix mapping while preserving the homo
Externí odkaz:
http://arxiv.org/abs/2407.04462
Autor:
Janaki, K.1 janu891ava@gmail.com, Kumari, R. Krishna2 krishrengan@gmail.com, Arulprakasam, R.3 r.aruljeeva@gmail.com
Publikováno v:
Mathematics in Engineering, Science & Aerospace (MESA). 2023, Vol. 14 Issue 4, p1139-1159. 21p.
Parikh-collinear morphisms have the property that all the Parikh vectors of the images of letters are collinear, i.e., the associated adjacency matrix has rank 1. In the conference DLT-WORDS 2023 we showed that fixed points of Parikh-collinear morphi
Externí odkaz:
http://arxiv.org/abs/2405.18032
Autor:
Chunikhin, Alexander
Three types of the Parikh mapping are introduced, namely, alphabetic, alphabetic-basis and basis. Explicit expressions for attractors of the k-th order in bases n >= 8, including countable ones, are found. Properties for the alphabetic, alphabetic-ba
Externí odkaz:
http://arxiv.org/abs/2402.14932
We have introduced a q-deformation, i.e., a polynomial in q with natural coefficients, of the binomial coefficient of two finite words u and v counting the number of occurrences of v as a subword of u. In this paper, we examine the q-deformation of P
Externí odkaz:
http://arxiv.org/abs/2402.05657
Autor:
Grobler, Mario, Siebertz, Sebastian
Various variants of Parikh automata on infinite words have recently been introduced in the literature. However, with some exceptions only their non-deterministic versions have been considered. In this paper we study the deterministic versions of all
Externí odkaz:
http://arxiv.org/abs/2401.14737
Autor:
Ming, Xi1,2 (AUTHOR) mingxi@wipm.ac.cn
Publikováno v:
Entropy. Aug2024, Vol. 26 Issue 8, p680. 9p.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
We consider subtleties of the horizon (null-hypersurface) limit in the Parikh-Wilczek Membrane Approach to Black Holes. Specifically, we refine the correspondence between the (projected) Einstein equations of gravity with matter and the Raychaudhuri-
Externí odkaz:
http://arxiv.org/abs/2309.14036
Several variants of Parikh automata on infinite words were recently introduced by Guha et al. [FSTTCS, 2022]. We show that one of these variants coincides with blind counter machine as introduced by Fernau and Stiebe [Fundamenta Informaticae, 2008].
Externí odkaz:
http://arxiv.org/abs/2307.07238