Elementary number theory cryptography and codes

... let N = {1, 2, 3, } denote the natural numbers, and use the standard notation Z, Q, R, and C for the rings of integer, rational, real, and complex numbers, respectively In this book, we will ... so q = and r = 986 Notice that if a natural number d divides both 2261 and 1275, then d divides their difference 986 and d still divides 1275 On the other hand, if d divides both 1275 an...

Ngày tải lên: 07/03/2014, 16:20

... of m and n On the other hand, suppose e is a divisor of m and n: e | m, n Then, working downwards, we find successively that e | m and e | n =⇒ e | r1 , e | r1 and e | m =⇒ e | r2 , e | r2 and ... exists a unique number d ∈ N such that d | m, d | n, and furthermore, if e ∈ N then e | m, e | n =⇒ e | d Definition 1.4 We call this number d the greatest common divisor of m and n,...

Ngày tải lên: 31/03/2014, 16:21

... recent issues of the Journal of Number Theory which you will find in our library iii PREFACE iv Here are some examples of outstanding unsolved problems in number theory Some of these will be discussed ... triangular number tn is the number of dots in a triangular array that has n rows with i dots in the i-th row Find a formula for tn , n ≥ (b) Suppose that for each n ≥ Let sn be th...

Ngày tải lên: 31/03/2014, 16:21

Ngày tải lên: 31/03/2014, 16:21

... the Arithmetic-Mean-Geometric-Mean Inequality for n = Assume that the Arithmetic-Mean-Geometric-Mean Inequality holds true for n = 2k−1, k > 2, that is, assume that nonnegative real numbers w1, ... } A rational number is a number which can be expressed as the ratio a of two integers a, b, where b = We denote the set of rational b numbers by Q An irrational number is a number which can...

Ngày tải lên: 31/03/2014, 16:21

Ngày tải lên: 12/06/2014, 16:05

Ngày tải lên: 21/08/2014, 15:09

... historical problems in elementary number theory (by email or via the website) that you think might belong in the book On the website you can also help me collecting solutions for the problems in the ... + y + z + t3 = 1999 has infinitely many integral solutions.3 Bulgaria 1999 H Determine all integers a for which the equation x2 + axy + y = has infinitely many distinct integer...

Ngày tải lên: 21/11/2015, 21:03

... www.it-ebooks.info ELEMENTARY NUMBER THEORY WITH PROGRAMMING www.it-ebooks.info www.it-ebooks.info ELEMENTARY NUMBER THEORY WITH PROGRAMMING MARTY LEWINTER JEANINE MEYER ... Lewinter, Marty, 1950– Elementary number theory with programming / Marty Lewinter, Jeanine Meyer pages cm Includes index ISBN 978-1-119-06276-9 (cloth) Number theory Number theory Prob...

Ngày tải lên: 28/08/2016, 12:50

... Daniel Shanks Copyright 1978 by Daniel Shanks Library of Congress Cataloging in Publication Data Shanks Daniel Solved and unsolved problems in number theory Bibliography: p Includes index Numbers ... N-bit binary number, with ones for hands, and zeros for spaces Excluding the two possible patterns in RI : 1010 * 01 78 Solved and Unsolved Problems in...

Ngày tải lên: 15/03/2014, 16:03