1549055384-Symplectic_Geometry_and_Topology__Eliashberg_

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LECTURE l. 273

The multiplicities are assigned as follows. We identify T* X with JR^2 in the
natural way. For x E X, not a point stratum, we set m(x,o)Z = f(x). Let now


p EX be a point stratum, and (p,a) E T;x be a non-zero covector (a -1-0). We


set m(p,a)Z = f(p) - f(p + rn), where the number E > 0 is chosen to be small.


Exercise 1.6.1. Show that this procedure always gives a cycle.


Exercise 1.6.2. Make up your own constructible functions Ji, h : JR _, Z, satis-

fying the conditions of Theorem 1.1, and verify its claim.

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