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workshops:workshop0121 [2021/01/27 19:18] – [polymake conference] Requested by Irem lkastnerworkshops:workshop0121 [2021/01/30 18:51] (current) – [Table] belotti
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-^ **Friday**   ^ **Talks**                                                            ^                                         ^                                ^ **Helpdesks**               ^ +^ **Friday**   ^ **Talks**                                                                                ^                                                                               ^                                                                   ^ **Helpdesks**       ^ 
-| 10:30-11:45  |                                                                                                                                              ||| Installation helpdesk         | +| 11:45-12:00  | **Welcoming and summary of Polymake**                                                                                                                                                                                                      |||  Various helpdesks  | 
-| 11:45-12:00  | **Welcoming and summary of Polymake**                                                                                                        |||                               | +| 12:00-13:00  | **Talk: Rigidity of toric varieties arising from graphs **{{ :workshops:iremtalk.pdf }}                                                                                                                                                    ||| :::                 | 
-| 12:00-13:00  | **Talk: Rigidity of toric varieties arising from graphs **                                                                                   |||                               | +| :::          | //Irem Portakal//                                                                                                                                                                                                                          ||| :::                 | 
-| :::          | //Irem Portakal//                                                                                                                            |||                               | +| 13:00-14:00  | Lunch                                                                                                                                                                                                                                      ||| :::                 | 
-| 13:00-14:00  | Lunch                                                                                                                                        ||| Various helpdesks, see table  | +| 14:00-14:30  | **Tutorial: Application Polytope**  {{ :workshops:applicationpolytope.ipynb.zip }}       | **Tutorial: Application Tropical**{{ :workshops:tropical.zip}}                | **Tutorial: Number Fields**{{ :workshops:realnumberfields.zip }}  | :::                 | 
-| 14:00-14:30  | **Tutorial: Application Polytope**                                   | **Tutorial: Application Tropical**      | **Tutorial: Number Fields**   | :::                           | +|              | //Oğuzhan Yuruk//                                                                        | //Sylvain Spitz and Paul Vater//                                              | //Alexej Jordan//                                                 | :::                 | 
-|              | //Oğuzhan Yuruk//                                                    | //Sylvain Spitz//                       | //Alexej Jordan//             | :::                           | +| 14:30-15:00  | **Tutorial: Application Fulton**                                                         | **Tutorial: using Polymake via Julia**{{ :workshops:polymakeinjulia.ipynb }}                                                                     || :::                 | 
-| 14:30-15:00  | **Tutorial: Application Fulton**                                     | **Tutorial: using Polymake via Julia**                                 || :::                           | +|              | //Holger Eble//                                                                          | //Taylor Brysiewicz//                                                                                                                            || :::                 | 
-|              | //Holger Eble//                                                      | //Taylor Brysiewicz//                                                  || :::                           | +| 15:00-16:00  | **Talk: Ehrhart theory of locally anti-blocking lattice polytopes**                                                                                                                                                                        ||| :::                 | 
-| 15:00-16:00  | **Talk: Ehrhart theory of locally anti-blocking lattice polytopes**                                                                          |||                               | +|              | //Akiyoshi Tsuchiya//                                                                                                                                                                                                                      ||| :::                 | 
-|              | //Akiyoshi Tsuchiya//                                                                                                                        |||                               | +| 16:00-16:30  | **Conclusion**                                                                                                                                                                                                                             ||| :::                 | 
-| 16:00-16:30  | **Conclusion**                                                                                                                               |||                               | +
-| 16:30-       |                                                                                                                                              ||| Various helpdesks, see table  |+
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 === Abstracts === === Abstracts ===
 +== Talk: Rigidity of toric varieties arising from graphs ==
 +One may construct an edge cone/polytope by the columns of the incidence matrix of a graph. First we consider affine toric varieties associated to the edge cone of a bipartite graph. The first-order deformations of an affine toric variety is combinatorially described by Altmann. By applying this result, we study the ones with no nontrivial first-order deformations, i.e. rigid ones. Next we focus on Gorenstein toric Fano varieties arising from symmetric edge polytopes. We investigate the rigid ones by Totaro‘s result in terms of graphs. 
 +
 +The latter is a joint-work with Selvi Kara and Akiyoshi Tsuchiya.
 +
 == Talk: Ehrhart theory of locally anti-blocking lattice polytopes == == Talk: Ehrhart theory of locally anti-blocking lattice polytopes ==
 The Ehrhart polynomial counts the number of lattice points in integer dilates of a lattice polytope. The Ehrhart polynomial counts the number of lattice points in integer dilates of a lattice polytope.
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 This talk is based on joint work with Hidefumi Ohsugi (Kwansei Gakuin University). This talk is based on joint work with Hidefumi Ohsugi (Kwansei Gakuin University).
-== Talk: Rigidity of toric varieties arising from graphs == 
-One may construct an edge cone/polytope by the columns of the incidence matrix of a graph. First we consider affine toric varieties associated to the edge cone of a bipartite graph. The first-order deformations of an affine toric variety is combinatorially described by Altmann. By applying this result, we study the ones with no nontrivial first-order deformations, i.e. rigid ones. Next we focus on Gorenstein toric Fano varieties arising from symmetric edge polytopes. We investigate the rigid ones by Totaro‘s result in terms of graphs.  
- 
-The latter is a joint-work with Selvi Kara and Akiyoshi Tsuchiya. 
 == Tutorials regarding polymake applications == == Tutorials regarding polymake applications ==
 If you are new to polymake and wish to understand a bit more about it, this is the right place for you. From 14:00 to 15:00 we will have three sessions of half an hour each in which expertes of the field will introduce you to the three main polymake applications: polytope, fulton and tropical. Notice that the two sessions about polytopes and tropical will be held in parallel. Be sure to make your choice wisely. If you are new to polymake and wish to understand a bit more about it, this is the right place for you. From 14:00 to 15:00 we will have three sessions of half an hour each in which expertes of the field will introduce you to the three main polymake applications: polytope, fulton and tropical. Notice that the two sessions about polytopes and tropical will be held in parallel. Be sure to make your choice wisely.
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 ===== links to access the events ===== ===== links to access the events =====
 The event will take place in three main zoom rooms, the orange, the black and the white. The //orange room// is the main hall. The event will take place in three main zoom rooms, the orange, the black and the white. The //orange room// is the main hall.
-   * **Orange room**: +   * **Orange room**: https://tu-berlin.zoom.us/j/66548757163 
-   * **Black room**: +   * **Black room**:  https://tu-berlin.zoom.us/j/67436957044 
-   * **White room**:+   * **White room**: https://tu-berlin.zoom.us/j/69664897255
 To access the rooms, you need a password that will be sent via email to the registered participants. To access the rooms, you need a password that will be sent via email to the registered participants.
  
-   * **Welcome and goodbye**: Orange +   * **Welcome and goodbye**:                    Orange 
-   * **First talk** by //Irem Portakal//: Orange +   * **First talk** by //Irem Portakal//:        Orange 
-   * **Tutorial** for application //Polytope//: Orange +   * **Tutorial** for application //Polytope//:  Orange 
-   * **Tutorial** for application //Tropical//: Black +   * **Tutorial** for application //Tropical//:  Black 
-   * **Tutorial** for //Number fields//: White +   * **Tutorial** for //Number fields//:         White 
-   * **Tutorial** for application //Fulton//: Orange +   * **Tutorial** for application //Fulton//:    Orange 
-   * **Tutorial Polymake via Julia**: Black +   * **Tutorial Polymake via Julia**:            Black 
-   * **Second talk** by //Akiyoshi Tsuchiya//: Orange+   * **Second talk** by //Akiyoshi Tsuchiya//:   Orange
  
 ===== helpdesks ===== ===== helpdesks =====
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 install polymake beforehand and feel free to contact us on riot before the install polymake beforehand and feel free to contact us on riot before the
 workshop. workshop.
 +===== quiz =====
 +The quiz sheet is the following: {{ :workshops:quiz.pdf |}}. The file to decrypt the message is:{{ :workshops:message.txt.gpg |}} . To get the passphrase for the encrypted message just chain together all the answers from the questions in their order. Leave out commas and use 0 and 1 for true and false. The answer should be a string of 20 digits.
 ===== developer meeting ===== ===== developer meeting =====
 The developer meeting takes place on January 28th and 30th. The schedule for the developer meeting and the informations for accessing it will be sent by email to the registered participants. You can find more information on the developer meeting [[internal:developermeeting0121|here]] (internal access only). If you want to participate in the developer meeting as well, please let us know by email. The developer meeting takes place on January 28th and 30th. The schedule for the developer meeting and the informations for accessing it will be sent by email to the registered participants. You can find more information on the developer meeting [[internal:developermeeting0121|here]] (internal access only). If you want to participate in the developer meeting as well, please let us know by email.
  • workshops/workshop0121.1611775120.txt.gz
  • Last modified: 2021/01/27 19:18
  • by lkastner