*Avviso Seminario di Matematica*
* Monday 15th November 2021 (aula Dini) 9.00-9.50 Giulio Bresciani (Centro De giorgi) Title - A down to earth introduction to anabelian geometry Abstract - Anabelian geometry is the study of a series of daring conjectures formulated by Grothendieck about the interactions between the geometric, topologic and arithmetic aspects of hyperbolic Riemann surfaces. Let g>=2 be an integer and write Pg for the profinite completion of the fundamental group of the compact, oriented surface of genus g. If X is a Riemann surface of genus g defined by an equation with coefficients in Q (more generally, a number field), then X induces an outer action of the absolute Galois group of Q on Pg. Loosely speaking, Grothedieck's anabelian conjectures aim to reconstruct X completely from this outer action. We are going to explain these conjectures together with some of the ideas and results which inspired Grothendieck. Finally, we will state some of the most important results available. * ll seminario si terrà in modalità mista. Tutti gli interessati a partecipare in presenza devono contattare per email il dr. Gioacchino Antonelli (gioacchino.antonelli@sns.it). link per collegarsi all'evento:
https://teams.microsoft.com/l/meetup-join/19%3aU6a57NlVFWbcy9kcfM4uzZIySQNcU...
Monday 15th November 2021 (aula Dini) *
10.00 - 10.50 Lucio Maria Calcagnile Title - Efficiency and
instabilities of financial markets Abstract - In the first part I will show how market informational efficiency can be successfully studied on high frequency financial data, finding analytical results on ARMA processes and using a more empirical approach. In the second part I will show the main self- and cross-exciting features of market instabilities and how they can be effectively described with original models based on Hawkes processes. *
ll seminario si terrà in modalità mista. Tutti gli interessati a partecipare in presenza devono contattare per email il dr. Gioacchino Antonelli (gioacchino.antonelli@sns.it). link per collegarsi all'evento:
https://teams.microsoft.com/l/meetup-join/19%3aU6a57NlVFWbcy9kcfM4uzZIySQNcU...
A rettifica della comunicazione precedente, tutti gli interessati a partecipare in presenza devono contattare per email il Prof. Andrea Malchiodi (andrea.malchiodi@sns.it). Classe di Scienze
Valeria Giuliani Scuola Normale Superiore Servizio Attività Didattiche tel. 050 509260 Piazza dei Cavalieri, 7 56126 Pisa E-mail: valeria.giuliani@sns.it E-mail: classi@sns.it
Il giorno ven 12 nov 2021 alle ore 10:48 Valeria Giuliani < valeria.giuliani@sns.it> ha scritto:
- Monday 15th November 2021 (aula Dini) *
- 10.00 - 10.50 Lucio Maria Calcagnile Title - Efficiency and
instabilities of financial markets Abstract - In the first part I will show how market informational efficiency can be successfully studied on high frequency financial data, finding analytical results on ARMA processes and using a more empirical approach. In the second part I will show the main self- and cross-exciting features of market instabilities and how they can be effectively described with original models based on Hawkes processes. *
ll seminario si terrà in modalità mista. Tutti gli interessati a partecipare in presenza devono contattare per email il dr. Gioacchino Antonelli (gioacchino.antonelli@sns.it). link per collegarsi all'evento:
https://teams.microsoft.com/l/meetup-join/19%3aU6a57NlVFWbcy9kcfM4uzZIySQNcU...
A rettifica della comunicazione precedente, tutti gli interessati a partecipare in presenza devono contattare per email il Prof. Andrea Malchiodi (andrea.malchiodi@sns.it). Classe di Scienze
Valeria Giuliani Scuola Normale Superiore Servizio Attività Didattiche tel. 050 509260 Piazza dei Cavalieri, 7 56126 Pisa E-mail: valeria.giuliani@sns.it E-mail: classi@sns.it
Il giorno ven 12 nov 2021 alle ore 10:42 Valeria Giuliani < valeria.giuliani@sns.it> ha scritto:
*Avviso Seminario di Matematica*
- Monday 15th November 2021 (aula Dini) 9.00-9.50 Giulio Bresciani (Centro
De giorgi) Title - A down to earth introduction to anabelian geometry Abstract - Anabelian geometry is the study of a series of daring conjectures formulated by Grothendieck about the interactions between the geometric, topologic and arithmetic aspects of hyperbolic Riemann surfaces. Let g>=2 be an integer and write Pg for the profinite completion of the fundamental group of the compact, oriented surface of genus g. If X is a Riemann surface of genus g defined by an equation with coefficients in Q (more generally, a number field), then X induces an outer action of the absolute Galois group of Q on Pg. Loosely speaking, Grothedieck's anabelian conjectures aim to reconstruct X completely from this outer action. We are going to explain these conjectures together with some of the ideas and results which inspired Grothendieck. Finally, we will state some of the most important results available. * ll seminario si terrà in modalità mista. Tutti gli interessati a partecipare in presenza devono contattare per email il dr. Gioacchino Antonelli (gioacchino.antonelli@sns.it). link per collegarsi all'evento:
https://teams.microsoft.com/l/meetup-join/19%3aU6a57NlVFWbcy9kcfM4uzZIySQNcU...
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Valeria Giuliani