To send content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about sending content to .
To send content items to your Kindle, first ensure firstname.lastname@example.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about sending to your Kindle.
Note you can select to send to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
A smooth affine surface
defined over the complex field
surface if the Makar–Limanov invariant
is trivial. In this paper we study the topology and geometry of
surfaces. Of particular interest is the question: Is every curve
which is isomorphic to the affine line a fiber component of an
? We shall show that the answer is affirmative if the Picard number
, but negative in case
$\rho (X)\,\ge \,1$
. We shall also study the ascent and descent of the
property under proper maps.