Mathematics is kept alive by the appearance of new unsolved problems, problems posed from within mathematics itself, and also from the increasing number of disciplines where mathematics is applied. This book provides a steady supply of easily understood, if not easily solved, problems which can be considered in varying depths by mathematicians at all levels of mathematical matu...(展开全部)

Unsolved Problems in Number Theory contains discussions of hundreds of open questions, organized into 185 different topics. They represent numerous aspects of number theory and are organized into six categories: prime numbers, divisibility, additive number theory, Diophantine equations, sequences of integers, and miscellaneous. To prevent repetition of earlier efforts or duplic...(展开全部)

Unsolved Problems in Number Theory contains discussions of hundreds of open questions, organized into 185 different topics. They represent numerous aspects of number theory and are organized into six categories: prime numbers, divisibility, additive number theory, Diophantine equations, sequences of integers, and miscellaneous. To prevent repetition of earlier efforts or duplic...(展开全部)

Mathematics is kept alive by the appearance of new unsolved problems, problems posed from within mathematics itself, and also from the increasing number of disciplines where mathematics is applied. This book provides a steady supply of easily understood, if not easily solved, problems which can be considered in varying depths by mathematicians at all levels of mathematical matu...(展开全部)

A highly recognized sleuth, Miss Marple unravels seven engaging mysteries, among them: "Tape Measure Murder," about an ordinary housewife found dead; "Case of the Perfect Maid," where a servant turns up missing; "Case of the Caretaker," in which Miss Marple's doctor procures a very strange remedy for the flu; "Miss Marple Tells a Story," where a husband faces a trial for his wi...(展开全部)

In this greatly expanded second edition, Beebe and Pherson have added five new and compelling case studies and fifteen new exercises that challenge students to engage in thorough and systematic thought. The result is a well-rounded and absorbing group of seventeen cases on events in foreign intelligence, counterintelligence, terrorism, homeland security, law enforcement, and de...(展开全部)

A highly recognized sleuth, Miss Marple unravels seven engaging mysteries, among them: "Tape Measure Murder," about an ordinary housewife found dead; "Case of the Perfect Maid," where a servant turns up missing; "Case of the Caretaker," in which Miss Marple's doctor procures a very strange remedy for the flu; "Miss Marple Tells a Story," where a husband faces a trial for his wi...(展开全部)

America's foremost expert on criminal profiling provides his uniquely gripping analysis of seven of the most notorious murder cases in the history of crime -- from the Whitechapel murders to JonBenet Ramsey -- often contradicting conventional wisdom and legal decisions. Jack the Ripper. Lizzie Borden. The Zodiac Killer. Certain homicide cases maintain an undeniable, almos...(展开全部)