Fundamentals Of Group Theory - Roman Steven | Libro Birkhäuser 10/2011 - HOEPLI.it


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Fundamentals of Group Theory An Advanced Approach




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Dettagli

Genere:Libro
Lingua: Inglese
Editore:

Birkhäuser

Pubblicazione: 10/2011
Edizione: 2012





Trama

Fundamentals of Group Theory provides an advanced look at the basic theory of groups. Standard topics in the field are covered alongside a great deal of unique content. There is an emphasis on universality when discussing the isomorphism theorems, quotient groups and free groups as well as a focus on the role of applying certain operations, such as intersection, lifting and quotient to a “group extension”. Certain concepts, such as subnormality, group actions and chain conditions are introduced perhaps a bit earlier than in other texts at this level, in the hopes that the reader would acclimate to these concepts earlier.


Some additional features of the work include:


·         An historical look at how Galois viewed groups.


·         The problem of whether the commutator subgroup of a group is the same as the set of commutators of the group, including an example of when this is not the case.


·         The subnormal join property, that is, the property that the join of two subnormal subgroups is subnormal.


·         Cancellation in direct sums.


·         A complete proof of the theorem of Baer characterizing nonabelian groups with the property that all of their subgroups are normal.


·         A somewhat more in depth discussion of the structure of p-groups, including the nature of conjugates in a p-group, a proof that a p-group with a unique subgroup of any order must be either cyclic (for p>2) or else cyclic or generalized quaternion (for p=2) and the nature of groups of order p^n that have elements of order p^(n-1).


·         A discussion of the Sylow subgroups of the symmetric group in terms of wreath products.


·         An introduction to the techniques used to characterize finite simple groups.


·         Birkhoff's theorem on equational classes and relative freeness.


This book is suitable for a graduate class in group theory, part of a graduate class in abstract algebra or for independent study. It can also be read by advanced undergraduates. The book assumes no specific background in group theory, but does assume some level of mathematical sophistication on the part of the reader.





Sommario

Preliminaries.- Groups and Subgroups.- Cosets, Index and Normal Subgroups.- Homomorphisms.- Chain Conditions and Subnormality.- Direct and Semidirect Products.- Permutation Groups.- Group Actions.- The Structure of –Groups.- Sylow Theory.- The Classification Problem for Groups.- Finiteness Conditions.- Free Groups and Presentations.- Abelian Groups.- References








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Altre Informazioni

ISBN:

9780817683009

Condizione: Nuovo
Dimensioni: 235 x 155 mm Ø 752 gr
Formato: Copertina rigida
Illustration Notes:21 Illustrations, black and white
Pagine Arabe: 380
Pagine Romane: xii






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