302
INDEX
r
2 r
208
s2r 202
t
2 r
218
discriminant 178
Reidemeister torsion 213
Simple homotopy theory
The terms simple homotopy equivalence, simple homotopy type, stably free,
5-base, simple equivalence, simple isomorphism, based short exact sequence,
Wh(ir), Whitehead torsion appear first in this book on pp. 22-27; readers un-
familiar with them are referred to Milnor's survey article [M14] for a clear and
readable account.
Algebraic terms
conventions on right and left modules; matrix notation 2
"bar", x, ^Zn(g)g
A ,
fJL
Qk
simple hermitian form
standard plane, hyperbolic form, lagrangian
quadratic form
formation
ui/f, 1 Ur, U Uri & J^r
a (2 x 2 matrix)
£ (matrix)
SU,S'U,TU
RU
the category
2n
categories ifpd, srfb
Group actions
Z2
5
Z2
join (of actions of spheres)
suspension E (of actions of spheres)
tame actions
standard lens space
L(^n~1(N)
On(G)
poly-^/ group
Group cohomology, group rings
(Wh7r)a
Hn(Z2)
(Tate Z2-cohomology)
Hn(G) (Tate G-cohomology)
G = Pontrjagin dual of G
RG,QRG
IG
Rx
= group of units of R
21
44
45
47
48
272
69
59
62
63
63
63
3
35
161,172
195
195-198
200
213
200,280
237
149
152,259
215
222
213
215
215,268
