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Polytope tutorial (Moritz Firsching):

Sage Days 79 - November 21 -- November 24, 2016, Jerusalem

First Sage Days in Israel

Einstein Institute of Mathematics, Hebrew University of Jerusalem, Israel

Topics: Combinatorics, Symbolic dynamics

This Sage Days is the first one organized in Israel under the framework of the European Research Council (ERC) grant entitled: “Avenues in Probabilistic and Geometric Combinatorics” and the European Commission H2020 project OpenDreamKit. The aim of the meeting will be to introduce the software to students and mathematicians in the region, with further emphasis on (but not limited to) geometric combinatorics and symbolic dynamics. It will be a great occasion to learn more about the software and for advanced developers to present and improve current tools.

Fill the pad with your needs and wishes!

Organizer: Jean-Philippe Labbé.

Dates and Venue

Date: 4 days from November 21 to November 24, 2016

Fridays are usually considered weekend days in Israel.

Venue: Library of the Belgium House, Hebrew University of Jerusalem, Givat Ram Campus


Fill the pad with your needs and wishes!

Here is a preliminary program for the workshop. The content of the week is very flexible: more tutorials and presentations can occur depending on the interests of participants. There are side tables in the Library room: small groups of people may use them to work during the tutorials.

Monday Nov 21

Tuesday Nov 22

Wednesday Nov 23

Thursday Nov 24



Tutorial: Sage Interfaces

Tutorial: How to contribute to Sage

Practical Work


Presentation of Sage + Installation Session


Practical Work

Practical Work


Coffee break


Installation Session + Introduction to Sage/python

Tutorial: Polytopes & Discr. Geom.

Tutorial: Graphs & Linear Prog.

Practical Work


Practical Work

Practical Work

Status Report





Travis Scrimshaw Crystals and Box-Ball Systems

Vincent Delecroix Lyapunov exponent of Teichmüller Flow

Practical Work

Zabrodsky Lectures: Dan Freed (U. Texas at Austin) -- Manchester Building



Coffee break

Light Refreshments


Tutorial: Repr. Th. & Crystals Jupyter notebook

Multi-dim. continued fractions

Practical Work



Practical Work

Practical Work










Tutorials on learning python/Sage

For participants starting with python and Sage, we suggest you to read through some (not all!) documentation listed here.

A guided tour in Sage takes you through basic notions and structures available in Sage.

The python tutorial guides you through the basic notions to advanced features of python programming language.

and test you knowledge with the progressive tutorials:

  1. A tutorial for your First steps in Sage

  2. A tutorial for you to leran imperative programming ( introduction_to_imperative_programming.rst)

  3. A tutorial for you to learn object oriented python

Polytope tutorial (Moritz Firsching):

Sage Development

Sage trac tickets with keyword days79. Do not forget to add the keyword "days79" for Sage trac tickets you are working on during the week.



  • Jean-Philippe Labbé (Hebrew University, Jerusalem)
  • Ariel Davis (Hebrew University, Jerusalem)
  • Daniel Kalmanovich (Hebrew University, Jerusalem)
  • Panagiotis E Georgoudis (Hebrew University, Jerusalem)
  • Oren Becker (Hebrew University, Jerusalem)
  • David Zisselman (Hebrew University, Jerusalem)
  • Ofir David (Hebrew University, Jerusalem)
  • Ori Parzanchevski (Hebrew University, Jerusalem)
  • Edo Arad (Hebrew University, Jerusalem)
  • Malka Schaps (Bar-Ilan University, Ramat Gan, Israel)
  • Tomer Bauer (Bar-Ilan University, Ramat Gan, Israel)
  • Tahl Nowik (Bar-Ilan University, Ramat Gan, Israel)
  • Ola Omari (Bar-Ilan University, Ramat Gan, Israel)
  • Stuart W. Margolis (Bar-Ilan University, Ramat Gan, Israel)
  • Ron Adin (Bar-Ilan University, Ramat Gan, Israel)
  • Moshe Newman (Beer-Sheva, Israel)
  • Michael Chapman (Ben-Gurion University, Israel)
  • Alberto Fernandez Boix (Ben-Gurion University, Israel)
  • Adina Heilbron Cohen (Tel Aviv University, Israel)
  • Peleg Michaeli (Tel Aviv University, Israel)
  • Nishant Chandgotia (Tel Aviv University, Israel)
  • Clara Shikhelman (Tel Aviv University, Israel)
  • Konstantin Kliakhandler (Tel Aviv University, Israel)
  • Amir Sagiv (Tel Aviv University, Israel)
  • David Mottahedèh (Tel Aviv University, Israel)
  • Rene Ruehr (Tel Aviv University, Israel)
  • Sagi Snir (University of Haifa, Israel)
  • Ameer Kassis (Technion, Haifa, Israel)
  • Laura Peskin (Weizmann Institute, Israel)
  • Mee Seong Im (United States Military Academy, NY)
  • Travis Scrimshaw (University of Minnesota, USA)
  • Vincent Delecroix (Université de Bordeaux, France)
  • Adrien Boussicault (Université de Bordeaux, France)
  • Patxi Laborde-Zubieta (Université de Bordeaux, France)
  • Nicolas M. Thiery (Université Paris-Sud, France)
  • Joël Gay (Université Paris-Sud, France)
  • Florent Ygouf (Institut Fourier, Université Grenoble, France)
  • Viviane Pons (Université Paris-Sud, France)
  • Klaus Dohmen (Hochschule Mittweida, University of Applied Sciences, Germany)
  • Moritz Firsching (Freie Universität, Berlin, Germany)
  • Yumeng Li (Berlin Mathematical School, Germany)
  • Jeremias Epperlein (TU Dresden, Germany)
  • Evgeniya Lagoda (Berlin Mathematical School, Germany)
  • Vijay Sharma (Riyaaz, Netherlands)
  • Sebastián Donoso (Center for Mathematical Modeling, University of Chile)
  • Sébastien Labbé (Université de Liège, Belgium)


We have 10 rooms reserved at the Beit Belgia (Belgium House) on Givat Ram campus from November 20th to November 25th. Seven of them have two single beds and the other three are suits with a double bed and a couch. People receiving funding for housing will have a room there waiting for them. Depending on the availability, the remaining rooms will be available for participants not receiving lodging funding. More information to come.

There are also hotels near to campus:

Prima Park Hotel

Jerusalem Gardens Hotel

For people that want to extend their stay before/after the workshop, Abraham Hostel is a very good choice of hotel/hostel downtown, close to the tram line and 10 minutes walk to the old city.

Abraham Hostel Jerusalem

Practical informations

If you did not already, please fill in the Information form

For more general information about traveling to Jerusalem.

Get to Jerusalem

The principal international airport in Israel is Tel Aviv Airport (TLV) located 55km from Jerusalem.

It is possible to get to Jerusalem from the airport:

  1. with a licenced taxi (beige colored with black), just exit the airport and turn left. It costs around 250-300NIS.
  2. with a shared taxi (mini-van) called "sherut", just exit the airport and turn right. It costs 64NIS. No need of reservation, but it leaves once the van is full. Tell to the driver "Givat Ram Campus, Beit Belgia".

The ride takes between 50 minutes and 1h15 depending on traffic conditions

Prior to the workshop we will try to organize us to coordinate taxis if possible.

Taxis do not usually accept credit cards. A ride between TLV airport and Jerusalem costs between 250-300NIS.

Meals on campus

There are different meal options on Givat Campus. Campus Map

Among the common chosen options, that all have vegetarian options:

  1. Cafeteria in the Sherman Administration buildind: Israeli dishes
  2. Wise Auditorium (Restaurant Fabricio): Italian/Israeli restaurant with pizza, calzone, salads and coffee.
  3. Sprinzak Building: Coffee with prepared sandwiches, salads, juices and coffee
  4. Rothberg building: Big salad and pasta bar, with coffee.
  5. (more expansive) Belgium House: Coffee and salads and prepared buffets
  6. (more expansive) Haivrit Restaurant: next to the swimming pool. Typical israeli dairy food (no meat).

days79 (last edited 2016-12-03 16:30:44 by jipilab)