Timeline for Involution of the Fermat quartic

8 events

when toggle format	what		by	license	comment
Apr 13, 2017 at 12:58	history	edited	CommunityBot		replaced http://mathoverflow.net/ with https://mathoverflow.net/
May 10, 2014 at 16:09	vote	accept	Puzzled
Oct 10, 2012 at 16:46	comment	added	rita		I had tought of this possibility. If I have time I can try to work out a description. Or maybe Francesco will do it...
Oct 10, 2012 at 12:29	comment	added	Puzzled		You are right. The fibration of mathoverflow.net/questions/87633/… is not exactly the one I had in mind, sorry. It is just because I was considering a different fibration on $\mathbb{P}^{1}$, namely the one given by $$ C_{[\mu,\lambda]} = \left\{\begin{array}{l} \lambda (x^{2}-y^{2}) = \mu (z^{2}-t^{2})\\ \lambda (x^{2}+y^{2}) = \mu (z^{2}+t^{2}) \end{array} \right. $$ In this way $X/i$ is a fibration over $\mathbb{P}^{1}$ with $\mathbb{P}^{1}$ as general fiber.
Oct 10, 2012 at 8:39	vote	accept	Puzzled
Oct 10, 2012 at 8:39
Oct 10, 2012 at 0:05	answer	added	Francesco Polizzi		timeline score: 4
Oct 9, 2012 at 20:23	comment	added	rita		It seems to me that the fibers of the fibration described in mathoverflow.net/questions/87633/… are permuted by $i$, so the quotient surface has an elliptic fibration.
Oct 9, 2012 at 17:35	history	asked	Puzzled	CC BY-SA 3.0