We study ultimate periodicity properties related to overlaps between the suffixes of a left-infinite word [Formula: see text] and prefixes right-infinite text]. The main theorem states that set minimum lengths words such or is finite, where runs over positive integers are respectively suffix prefix length text], if only ultimately periodic form for some finite

The topological index of a graph G is a numeric quantity related to G which is invariant under automorphisms of G. The vertex PI polynomial is defined as PIv (G)  euv nu (e)  nv (e). Then Omega polynomial (G,x) for counting qoc strips in G is defined as (G,x) = cm(G,c)xc with m(G,c) being the number of strips of length c. In this paper, a new infinite class of fullerenes is constructed. ...

This paper analyzes the p e ~ o r m a n c e of unslotted CDMA random access schemes with heavy-tailed packet length distribution. Most of the previous work cover the analysis of the system with Poisson process and for infinite population and infinite buffer size where the results mainly depend on the mean values of the traffic. In this paper we remove these assumptions and analyze the behavior ...

In this paper we give an infinite family of strings for which the length of the Lempel-Ziv’77 parse is a factor Ω(log n/ log log n) smaller than the smallest run-length grammar.

The efficiency of the GA is highly dependent on the chosen encoding and genetic operators. In this note we present a theoretical (but applicable) framework for dynamic recoding of the GA search space as well as for the redefinition of the operators, in particular crossover, acting on it. One of our basic tools consists of embedding finite search spaces into infinite ones (both infinite populati...

abstract this study carried out on 194 fish (garra rufa) during the months of january to march at eight stations in dinvar river located at kermanshah province. during this study, 34 attributes and 11 traits count was measured geometric parameters and natural mortality and total amount 0.346, infinite length l∞=124.57 mm, growth factor k=0.29 and the length and weight of the exponential functio...

the gravity method is one of the first geophysical techniques used in oil and gas exploration. an algorithm is developed for a fast quantitative interpretation of gravity data generated by geometrically simple but also the estimated depths and other model parameters of a buried structure. following abdelrahman et al (1989). the general gravity anomaly expression produced by a sphere, an infinit...