EN
CONTENTS
Introduction............................................................................... 5
1. A technical lemma...................................................................... 7
2. Bundle of coefficients................................................................. 8
3. A remark on Lie groups............................................................. 12
4. An extension lemma .................................................................. 13
5. The simplest case. The Borsuk-Ulam theorem................... 21
6. The group structure ................................................................... 24
7. The main theorem ..................................................................... 26
8. On the set A(V, W) ...................................................................... 35
9. The multiplicative structure....................................................... 39
10. The stable range — the theorem of Segal.......................... 40
11. An application............................................................................ 42
Appendix 1........................................................................................ 45
Appendix 2........................................................................................ 45
References....................................................................................... 48