Normalisation Of Schemes

It was mentioned in earlier chapters that some of their results are inaccurate, that results are shown by methods which apply only to ‘normalised’ schemes. Here we look at unnormalised schemes and how their properties can be deduced by normalising them. Because there are no obvious advantages in unnormalised schemes, they will be ignored in subsequent parts of this book. The reader impatient to get to the Design chapters can therefore skip this one.