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This work is dedicated to the properties of the 3 × 3 magic squares of cubes modulo a prime number. Its central concept is the number of distinct entries of these squares and the properties associated with this number. We call this number the degree of a magic square. The necessary conditions for the magic square of cubes with degrees 3, 5, 7, and 9 are examined. It was established that there are infinitely many primes for which magic squares of cubes with degrees 3, 5, 7, and 9 exist. I apply n-tuples of consecutive cubic residues to prove that there are infinitely many Magic Squares of Cubes with degree 9. Furthermore I use Brauer’s theorem, that guarantees the existence of a sequence of consecutive integers of any length, to construct Magic Squares of Cubes whose entries are all cubic residues. Such analytic tools as Modular Arithmetic, Legendre symbol, Fermat’s Little Theorem, notions of quadratic and cubic residues were employed in the process of research.
The science of magic squares witnessed an important development in the Islamic world during the Middle Ages, with a great variety of construction methods being created and ameliorated. The initial step was the translation, in the ninth century, of an anonymous Greek text containing the description of certain highly developed arrangements, no doubt the culmination of ancient research on magic squares.
In this paper, I examine magic squares of squares (MSS) of order 5 over Zp where p is a prime number. The first approach to the problem is to find how many distinct elements an MSS may have (called the degree of the MSS). In the next step, I study the relationship between the magic sum and the center entry of any MSS. In order to develop construction methods and configurations for magic squares of squares of order 5 with desired degrees, I study Pythagorean triples and sequences of consecutive quadratic residues modulo p. Properties of these sequences are provided and applied to construct desired magic squares of squares. This research focuses on magic squares of squares of order 5 in which the center 3 x 3 square is a magic square of squares of order 3. I claim that the magic sum of such an MSS M is 5c, where c is the center element of M and the degree of M must be odd when p > 5. The main results of the thesis include several configurations for the construction of MSS of a given degree and the existence ofMSSs of all possible odd degrees over Zp for infinitely many primes p. Chapter 1 presents an overview of modular arithmetic as well as some important definitions. Chapter 2 gives the results about the magic sum and degrees. In Chapter 3, I investigate special sequences of quadratic residues and describe properties of them. In Chapter 4, by applying special sequences of quadratic residues, several configurations are developed and they are used to construct MSSs of a given degree. The main results of this thesis are provided in Chapter 4 as well.
Product DescriptionIn "Recreational Mathematics" Magic Squares play a very important role. Magic Squares have been known in India and China for over 3000 years. Later this knowledge was carried to the West by Arabs. A magic square is a square matrix consisting of numbers such that the sum of the elements of each row, column and diagonal is the same. In this book magic squares of all orders, singly even, doubly even and odd order are discussed. Methods of constructing these magic squares are discussed in detail. Prime numbers play a very prominent role in Mathematics. Magic squares using prime numbers are detailed. Nested magic squares, algebraic approach to magic squares, Lucky numbers and Pytahagorean wonder are discussed. Latin squares, Graeco Latin squares and aplication of matrix theory to magic squares are included. At the end of the book quiz on English vocabulary, mathematics and magic squares are given. It is followed by a large number of questions. A reader with little knowledge of Mathematics can also enjoy the beauty of magic squares.
Vols. 2 and 5 include appendices.