Bollettino settimanale
Settimana 20/02/2022 - 24/02/2022
Seminari
Università degli Studi di Roma "Tor Vergata"
Dipartimento di Matematica
Geometry Seminar
Date: 21 February 2023
Schedule: 14:30 Rome Time
Where: Conference Room 1201 "Roberta Dal Passo"
Speaker: Laura Capuano (Roma Tre)
Title: " TBA "
Abstract: TBA
Organizing Committee:
Codogni Giulio (Contact Mail)
Lido Guido Maria ( Contact Mail)
Further Information: Click here for geometry webpage
NOTE: For more information contact: Lido: Click here for mail
Streaming Link (MS Teams): This seminar will be held in person
Università degli Studi di Roma "Tor Vergata"
Dipartimento di Matematica
PhD defense
Date: friday the 24-th of february
Schedule: 11:00 a.m. Rome Time
Where: Conference Room 1201 "Roberta Dal Passo"
Speaker: Tudor Vartolomei
Title PhD thesis: "PERTURBATIVE METHODS AND PROPER ELEMENTS FOR THE SATELLITE AND SPACE DEBRIS PROBLEM "
ABSTRACT: The main objective of the present thesis is the study of classical and powerful methods of perturbation theory for Hamiltonian systems in the context of an important and applied topic, which is the space debris and Earth's artificial satellites dynamics problem. The work presented in this thesis aims to compute a new set of variables, the so-called proper orbital elements (hereafter proper elements) for a space object, which are quasi-integrals of motion, namely quantities that are stable for long periods of time. Our model problem will depend on coordinates that vary on different time scales; hence, we will implement a hierarchical perturbation theory to get rid of the different evolution of such variables. The proper elements are obtained from the mean elements after a canonical change of coordinates that averages the Hamiltonian function w.r.t. the semi-short and long-periodic variables. The main advantage of the proper elements is indeed their stability over long periods of time. This property will be used for the classification of the space debris.
Streaming Link (MS Teams): LINK TEAMS CLICK HERE
Eventi
Università degli Studi di Roma "Tor Vergata"
Dipartimento di Matematica
Corso di Dottorato
Reading course on Birational Geometry
Period: 2023.10.01 - 2023.06.06
Schedule:
| Day | Time and Room |
|---|---|
| 2023.10.01 | h:14:30/15:30 Conference Room 1103 "F.DE Blasi" |
| 2023.17.01 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.24.01 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.31.01 | h: 11:00/13:00 Conference Room 1103 "F.DE Blasi" |
| 2023.17.02 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.07.02 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.14.02 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.21.02 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.28.02 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.07.03 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.14.03 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.21.03 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.28.03 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.04.04 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.11.04 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.18.04 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.02.05 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.09.05 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.16.05 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.23.05 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.30.05 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |
| 2023.06.06 | h: 11:00/13:00 Conference Room 1103 "R.Dal Passo" |