Dear all, the exercises for ¡­

Dear all,

the exercises for Ch. 4 have been uploaded. This time, I have not given you a lot of defect equations etc. to write....you have done a lot of that already in the preceding chapters. Instead I have just made a few qualitative questions and things...mostly to make you think and perhaps read a little in the Chapter. At the end I have SUGGESTED that you try to sketch a full Brouwer diagram for YOUR material. That will for some of you be too difficult....then I have suggested easier substitutes. For others it will be trivial and a little boring...don't feel that you have to do this....do only as much as you feel you need - if any - to test your understanding.