Published online by Cambridge University Press: 28 July 2022
Modules are like vector spaces, except that their "scalars" are merely from a ring rather than a field. Because of this, modules do not generally have bases. However, we escape the difficulties in the rings of algebraic integers in algebraic number fields, and we can find bases for them with the help of the discriminant. This leads to another property of the latter rings - being integrally closed. In the next chapter we will see that the property of being integrally closed, together with the Noetherian property, is needed to characterize the rings in which unique prime ideal factorization holds.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.