As equation (16) has a unique solution lying in a narrowing backwards antifunnel between the lower fence and the upper fence .


Since all the functions are positive for negative t, the inequality (17) can be integrated from t to 0. Setting , we find

which gives

Exponentiating now gives


Therefore not only remains bounded, it tends to 0 exponentially as :

Annotation Form Interface

          Your name: 
     E-Mail address: 
 Annotation Subject: 
        Related URL: