© The London Mathematical Society
Stratified Transversality via Time-Dependent Vector Fields
LATP (UMR 6632), Université de Provence 39 rue Joliot-Curie, 13453 Marseille Cedex 13, France murolo{at}gyptis.univ-mrs.fr, trotman{at}gyptis.univ-mrs.fr
Matematisk Institut, Universitet Aarhus Ny Munkegade, 8000 Aarhus C, Denmark matadp{at}imf.au.dk
Received 3 August 2003.
For
a stratification with suitable regularity, in particular for any Whitney stratification and, via regular embedding, for any abstract stratified set, time-dependent vector fields are used to prove an extension theorem for diffeomorphisms near the identity defined on strata of a given dimension. Then it is shown that after isotopy a stratified map h : Z
can be made transverse to a fixed stratified map g : y
.