[CvGmt News] avviso seminario di matematica dr. Olaf Merkert (26.02.2013)
valeria.giuliani at sns.it
valeria.giuliani at sns.it
Fri Feb 22 09:52:52 CET 2013
SEMINARIO MATEMATICA
Martedì 26 febbraio 2013
ore 16:00
_Scuola Normale Superiore_
Pisa
Aula 2 palazzo Carovana
*__*
*Olaf Merkert*
/Scuola Normale Superiore/
Terrà un seminario dal titolo:
*/"/**A survey of the polynomial Pell equation/"/*
*Abstract:*
**
/In 1826, Abel demonstrated that if an expression of the form $f(X) / \sqrt{D(X)}$ is elementary integrable with primitive $\log\left(p(X) + q(X) \, \sqrt{D(X)}\right)$ where $f, D, p, q$ are polynomials over a field $k$, then $p^^2 - D \, q^^2 = \eta$ is constant, i.e. we get a solution of the polynomial Pell(-Fermat) equation, which can in fact be computed from a continued fraction expansion of $\sqrt{D(X)}$; similarly as with the Pell equation over the integers./
/His results were later refined by Tchebyshef, Adams, Razar, van der Poorten et alii, for instance the existence of non-trivial solutions (with $q \neq 0$) has been related to torsion divisors on hyperelliptic function fields./
/Still, there remains a plethora of open questions, many related to the problem of finding examples where the Pell equation actually admits non-trivial solutions (which happens rarely for higher degrees); and the problem of effectively determining that a given $D$ only has trivial solutions./
Tutti gli interessati sono invitati a partecipare.
Classe di Scienze
--
--------------------------------------------------------------------------------
Valeria Giuliani
Scuola Normale Superiore
Servizio Supporto Attività Didattiche - Scienze
Tel. 050-509260
Fax. 050-509045
Piazza dei Cavalieri, 7
56126 Pisa
E-Mail: v.giuliani at sns.it
E-Mail: segreteria.scienze at sns.it
Le informazioni contenute nella presente e-mail e nei relativi allegati possono essere riservate e sono, comunque, destinate esclusivamente al destinatario in indirizzo.
E' vietata, pertanto, la diffusione, distribuzione e/o copiatura di tali informazioni da parte di qualsiasi soggetto diverso dal destinatario.
Chiunque abbia ricevuto o letto questa e-mail per errore o senza esserne legittimato è invitato a darne immediatamente notizia al mittente tramite fax o e-mail e a distruggerla.
Grazie.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://cvgmt.sns.it/pipermail/news/attachments/20130222/cff7ccb2/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Merkert 26_02_13 .pdf
Type: application/pdf
Size: 146804 bytes
Desc: not available
URL: <http://cvgmt.sns.it/pipermail/news/attachments/20130222/cff7ccb2/attachment-0001.pdf>
More information about the News
mailing list