Utah State University DigitalCommons@USU All Graduate Plan B and other Reports Graduate Studies 5-1970 Infinite Abelian Groups Joaquin Pascual Follow this and additional works at: https://digitalcommons.usu.edu/gradreports Recommended Citation Pascual, Joaquin, "Infinite Abelian Groups" (1970). All Graduate Plan B and other Reports. 1122. https://digitalcommons.usu.edu/gradreports/1122 This Report is brought to you for free and open access by the Graduate Studies at DigitalCommons@USU. It has been accepted for inclusion in All Graduate Plan B and other Reports by an authorized administrator of DigitalCommons@USU. For more information, please contact
[email protected]. INFINITE ABELIAN GROUPS by Joaquin Pascual A report submitted in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE in Ma the ma ti cs Plan B Approved: UTAH STATE UNIVERSITY Logan, Utah 1970 NOTATION Z Set of integers Q Set of rationals Zp: Group of integer modulo p • , a } Set whose elements are a , ..., a n 1 n . , a ] Subgroup generated by a , ..., a . n 1 n o(m) Cyclic group of order m 00 o(p ) : p-primary component of rationals modulo one tG Torsion subgroup of G dG Maximal divisible subgroup of G G [ p] : { x E. G : px = 0} nG: {nx: x e G} LJ\ Direct sum of the groups 1\ (almost all coordinates are O) k '=- K ITJ\ Direct product of the groups� k f=- K To Amelia TABLE OF CONTENT S Page INTRODUCTION 1 PRELIMINARY RESULTS 2 INFINITE ABELIAN GROUPS 3 LITERATURE CITED 75 VITA . 76 1 INTRODUCTION When the theory of groups was first introduced, the attention was on finite groups.