1.

Record Nr.

UNINA9910450101703321

Autore

Tattersall James J (James Joseph), <1941->

Titolo

Elementary number theory in nine chapters / / James J. Tattersall [[electronic resource]]

Pubbl/distr/stampa

Cambridge : , : Cambridge University Press, , 1999

ISBN

1-107-11407-1

0-511-06583-3

1-283-32944-1

9786613329448

1-139-13387-X

1-139-12993-7

1-139-14549-5

0-511-05952-3

0-511-75635-6

0-511-06796-8

Descrizione fisica

1 online resource (viii, 407 pages) : digital, PDF file(s)

Disciplina

512/.72

Soggetti

Number theory

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Title from publisher's bibliographic system (viewed on 05 Oct 2015).

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Cover; Title; Copyright; Dedication; Contents; Preface; 1 The intriguing natural numbers; 2 Divisibility; 3 Prime numbers; 4 Perfect and amicable numbers; 5 Modular arithmetic; 6 Congruences of higher degree; 7 Cryptology; 8 Representations; 9 Partitions; Tables; Answers to selected exercises; Bibliography; Index

Sommario/riassunto

This book is intended to serve as a one-semester introductory course in number theory. Throughout the book a historical perspective has been adopted and emphasis is given to some of the subject's applied aspects; in particular the field of cryptography is highlighted. At the heart of the book are the major number theoretic accomplishments of Euclid, Fermat, Gauss, Legendre, and Euler, and to fully illustrate the properties of numbers and concepts developed in the text, a wealth of exercises have been included. It is assumed that the reader will have



'pencil in hand' and ready access to a calculator or computer. For students new to number theory, whatever their background, this is a stimulating and entertaining introduction to the subject.

2.

Record Nr.

UNINA9910797675903321

Autore

Csiky Gergely <1979->

Titolo

Avar-age polearms and edged weapons : classification, typology, chronology and technology / / by Gergely Csiky

Pubbl/distr/stampa

Leiden ; ; Boston : , : Brill, , [2015]

ISBN

90-04-30454-1

Descrizione fisica

1 online resource (561 p.)

Collana

East Central and Eastern Europe in the Middle Ages ; ; v. 32

Disciplina

623.4/41

Soggetti

Polearms - Europe, Eastern - History

Swords - Europe, Eastern - History

Avars - Antiquities

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Preliminary Material -- 1 Introduction -- 2 Polearms -- 3 Edged Weapons -- 4 Technology—Manufacturing Techniques -- 5 Chronology—Continuity and Discontinuity -- 6 Origins and Cultural Contacts -- 7 Armament and Society -- 8 Armament and Cavalry Warfare in the Aver-age Carpathian Basin -- 9 General Conclusions -- References -- Maps -- Index.

Sommario/riassunto

In Avar-Age Polearms and Edged Weapons , Gergely Csiky offers a presentation of close combat weapons of a nomadic population that migrated from Inner Asia to East-Central Europe. During the late 6th – early 7th centuries, the Avars led successful military campaigns against the Balkan realms of the Byzantine Empire, facilitated by their cavalry’s use of stirrups for the first time in Europe. Besides the classification, manufacturing techniques, fittings, suspension, distribution, and chronology of polearms and edged weapons known from Avar-age burials, a special emphasis is laid on the origins and cultural contacts of these weapons, among them the first edged weapons with curved blades: the sabres. The social significance and, function of these



artefacts is discussed in order to place them in nomadic warfare.