Top
Back: chProj
Forward: eulerChProj
FastBack:
FastForward:
Up: chern_lib
Top: Singular Manual
Contents: Table of Contents
Index: Index
About: About this document

D.5.2.42 tdProj

Procedure from library chern.lib (see chern_lib).

Usage:
tdProj(n); n integer

Return:
list of (rational) numbers

Purpose:
computes the terms of the Todd class
of the (tangent bundle of the) complex projective space

Note:

Example:
 
LIB "chern.lib";
ring r=0, (t), dp;
// the coefficients of the Todd class of the complex projective line
print( tdProj(1) );
==> [1]:
==>    1
==> [2]:
==>    1
// the coefficients of the Todd class of the complex projective line
print( tdProj(2) );
==> [1]:
==>    1
==> [2]:
==>    3/2
==> [3]:
==>    1
// the coefficients of the Todd class of the complex projective line
print( tdProj(3) );
==> [1]:
==>    1
==> [2]:
==>    2
==> [3]:
==>    11/6
==> [4]:
==>    1

Top Back: chProj Forward: eulerChProj FastBack: FastForward: Up: chern_lib Top: Singular Manual Contents: Table of Contents Index: Index About: About this document
            User manual for Singular version 4.3.1, 2022, generated by texi2html.