Selectividad homología

Answer
Solution

'DGDODSDUHMDGHVHJPHQWRVKRPyORJRV2$\2 $ VHSLGH 1. 7UD]DUHOSHQWiJRQRUHJXODU$%&'(LQVFULWRHQODFLUFXQIHUHQFLDGHFHQWUR2 'HWHUPLQDUHOHMH\ODGLUHFFLyQGHDILQLGDGVDELHQGRTXHHOYpUWLFHGHOSHQWiJRQRPiVSUy[LPRDOVHJPHQWR O'A' es un punto doble. 'LEXMDUODILJXUDKRPyORJDGHOSROtJRQRREWHQLGR





}}}}}

M=M'

A'

B'

B

A