In this post we just give a simple, but nice example, to show that ‘Noetherian’ is not a property preserved under pull-back.
Month: July 2014
What Information is Contained in an ‘Infinitesimal Neighborhood’ of a Point?
In this post we discuss the notion of an ‘infinitesimal neighborhood’ of a point of a scheme , and how this relates to the ring
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Group Schemes and Affine Group Schemes
In this post we motivate the notion of affine group schemes, and discuss the various equivalent ways of defining them.