The problems of constructing covering codes and of estimating their parameters are the main concern of this book. It provides a unified account of the most recent theory of covering codes and shows how a number of mathematical and engineering issues are related to covering problems.Scientists involved in discrete mathematics, combinatorics, computer science, information theory, geometry, algebra or number theory will find the book of particular significance. It is designed both as an introductory textbook for the beginner and as a reference book for the expert mathematician and engineer.A number of unsolved problems suitable for research projects are also discussed.

A translation surface is obtained by taking plane polygons and gluing their edges by translations. We ask which subgroups of the Veech group of a primitive translation surface can be realised via a translation covering. For many primitive surfaces we prove that partition stabilising congruence subgroups are the Veech group of a covering surface. We also address the coverings via their monodromy groups and present examples of cyclic coverings in short orbits, i.e. with large Veech groups.

Recently, various types of single valued neutrosophic (SVN) rough set models were presented based on the same inclusion relation. However, there is another SVN inclusion relation in SVN sets. In this paper, we propose a new type of SVN covering rough set model based on the new inclusion relation.

This work studies abelian branched coverings of smooth complex projective surfaces from the topological viewpoint. Geometric information about the coverings (such as the first Betti numbers of a smooth model or intersections of embedded curves) is related to topological and combinatorial information about the base space and branch locus. Special attention is given to examples in which the base space is the complex projective plane and the branch locus is a configuration of lines.

"Once associated with gang members, criminals, and sailors, tattoos are now mainstream. An estimated twenty percent of all adults have at east one, and women are increasingly getting tattoos and are now more likely than men to have one. But many of the tattoos that women get are gender-appropriate: they are cute, small, and can be easily hidden. A small dolphin on the ankle, a black line on the lower back, a flower on the hip, and a child's name on the shoulder blade are among the popular choices. But what about women who are heavily tattooed? Why would a woman get "sleeves"? And why do some collect larger-scale tattoos on publicly visible skin, of imagery not typically considered feminine or cute, like skulls, zombies, snakes, or dragons? Drawing on five years of ethnographic research and interviews with more than seventy heavily tattoed women, 'Covered in Ink' provides insight into the increasingly visible subculture of tattoed women. Author Beverly Yuen Thompson spent time in tattoo parlors and at tattoo conventions in order to further understand women's love of ink and their imagery choices as well as their struggle with gender norms, employment discrimination, and family rejection. Still, many of these women feel empowered by their tattoes and believe they are creating a space for self-expression that also presents a positive body image. 'Covered in Ink' investigates this complicated subculture and finds out the many meanings of the love of ink"--Page 4 of cover.

The main goal of this book is the construction of families of Calabi-Yau 3-manifolds with dense sets of complex multiplication fibers. The new families are determined by combining and generalizing two methods. Firstly, the method of E. Viehweg and K. Zuo, who have constructed a deformation of the Fermat quintic with a dense set of CM fibers by a tower of cyclic coverings. Using this method, new families of K3 surfaces with dense sets of CM fibers and involutions are obtained. Secondly, the construction method of the Borcea-Voisin mirror family, which in the case of the author's examples yields families of Calabi-Yau 3-manifolds with dense sets of CM fibers, is also utilized. Moreover fibers with complex multiplication of these new families are also determined. This book was written for young mathematicians, physicists and also for experts who are interested in complex multiplication and varieties with complex multiplication. The reader is introduced to generic Mumford-Tate groups and Shimura data, which are among the main tools used here. The generic Mumford-Tate groups of families of cyclic covers of the projective line are computed for a broad range of examples.

A summary of state campaign finance laws with quick reference charts for the U.S. territories and possessions.