Differences between revisions 18 and 58 (spanning 40 versions)

Sage-Combinat Days in Cernay, 6-12 April 2014

Contents

Sage-Combinat Days in Cernay, 6-12 April 2014

Sage Days 57, Cernay 2014

The fourth "Sage-Combinat Days in Cernay" will be held at Cernay-la-Ville (40km South-West of Paris, near Orsay), April 6-12, 2014.

We booked the guest house The Tower (and Le grenier royal), a very nice and cosy "gîte", just short of an hour from Paris by public transport.

This follows a tradition of *-combinat workshops: 2012, 2010, 2009, 2007... See the links for activity reports and some photos.

This workshop is also "Sage Days 57". More Sage workshops are listed on the Workshops page of the Sage wiki.

The workshop is funded by ANR projects DynA3S, GeoDyM, PSyCo, with material help from the Mathematics and the Computer Science Departments at Université Paris-Sud, Orsay.

Participants

Tomer Bauer (Bar-Ilan U, Ramat Gan, Israel), 6--12 April
Adrien Boussicault (LaBRI, Bordeaux, France)
Volker Braun (Oxford U, UK) 6--12 April
Nicolas Borie (U Paris-Est Marne-la-Vallée, France)
Luca De Feo (U Versailles Saint-Quentin, France)
Vincent Delecroix (Labri, Bordeaux, France) 5--12 April
Matthieu Dien (UPMC, U Paris 6, Paris, France) 6--12 April
Charles Fougeron (IMJ, U Paris 7, Paris, France)
Eric Gourgoulhon (Luth, Observatoire de Paris, France)
Florent Hivert (LRI, U Paris-Sud Orsay, France)
Jean-Philippe Labbé (Freie U Berlin, Germany)
Sébastien Labbé (LIAFA, Paris, France)
Patxi Laborde Zubieta (LaBRI, Bordeaux, France) 5 - 12 April
Samuel Lelièvre (LMO, U Paris-Sud, Orsay, France), 5--12 April
Thierry Monteil (Lirmm, Montpellier, France)
Vivien Ripoll (U Vienna, Austria)
Nicolas M. Thiéry (LRI, U Paris-Sud, Orsay, France)
Jean-Pierre Flori (ANSSI, Paris, France), 7 and (probably 9) April

Programme and topics

On Monday there will be an introduction to git for those interested.

The rest of the programme is decided together during the workshop.

If you have wishes or coding projects, please edit the list of topics.

Status report

Sébastien
- ticket #6637: cleaning TransitiveIdeal and TransitiveIdealGraded
- Creation of RecursivelyEnumeratedSet
- Read my status report here
Jean Philippe
- ticket #15703
- A nice 3D self-rotating picture representing limit set of a generic orbit under the action of a Coxeter group on the projective space.
- upgraded his ubuntu and can now use Linux back again.
Vivien
- #16120 : add float to run
- Found some bugs in the cyclotomic field and discovered that a ticket is waiting for 4 years.
Charles
- Ticket #16102
- translation surfaces : merging his code with Vincent existing code.
Tomer
- #15595
- #16092
- #16090
- Subgroup zeta functions, found some bugs in symbolic
Volker
- Backend for polyhedra (especially double description algorithm) on AA
Luca Thierry Vincent
- An index for Sage pedagogical ressources.
Thierry
- rewiewed
Mathieu
- #15673
- #16107
- Lazy power series.
Patxi
- tableaux, pbs with mutability
Nicolas B
- review of the set factory
- parallelization at low-level using multithreading
Florent
- Parallelism in sage (with Nicolas B.)
Nicolas T
- lot of discussions
- fixed long standing performance issue with categories which was one of the blocker for #10963
- work on #16058: reorganisation of the index of sage.combinat in the reference manual
Adrien
- Implemented parallelogram polyomino.

Older informations

Dates

The core of the activity will be Monday, April 7, 2014 to Friday, April 11, 2014.

Arrival on Sunday, April 6, is encouraged; early arrival is possible on Saturday, April 5, 2014.

Participants are welcome to stay until Saturday, April 12.

If you wish to stay longer before or after these dates, let us know.

Venue

The workshop takes place in a guest house, which has comfortable working spaces, a cooking and dining area, and a few bedrooms. This favors an intense workshop, with everything taking place in the same location.

We will set up a wired internet connection and an open wifi.

The Tower can accommodate 8-10 people and the adjacent guest house we rented offers room for 6 more people.

The surrounding area offers nice hiking possibilities, bring hiking/climbing shoes.

Your music instruments and scores, card or board games, etc, are also welcome for the breaks.

Meal organisation

Meals are cooked in turns by the participants for everyone, so bring along your favorite recipes and dishes! All diets, including vegetarian, will be taken into account.

Funding

The workshop is funded by ANR projects DynA3S, GeoDyM, PSyCo, with material help from the Mathematics and the Computer Science Departments at Université Paris-Sud, Orsay.

Accommodation and meals for all participants are covered by our funding sources.

We can also cover travel expenses for most participants, especially PhD students and postdocs.

From Paris to Cernay

From Gare Montparnasse: 35 minutes train to Rambouillet + 15 minutes bus to Cernay-la-Ville
From Denfert-Rochereau: 40 minutes RER B to Saint-Rémy-les-Chevreuse + 15 minutes bus to Cernay-la-Ville
Map and aerial photo
Bus option
- from St Remy (RER station), bus 39-03 or 39-103
- from Rambouillet (SNCF station) line 39-03 and 39-203
- More information on schedules here. Of the two bus stops in Cernay, Grand'Place is closest to the guest house. Beware that there are big gaps in the day with no buses to Cernay.
Check travel itineraries on ViaNavigo (includes trains, RER, buses).
- Or ratp but only for travel up to Saint-Rémy-les-Chevreuse.
We will run some car shuttles from Saint-Rémy-les-Chevreuse : car shuttles organisation

Registration

To register, send an email with subject "Cernay 2014" to [email protected], where (aaa,bbb,ccc,ddd) = (sage-cernay,math,u-psud,fr), filling in all the fields you can from the following form.

    Fourth Sage-Combinat Days in Cernay

    Name:
    Position:
    Institution:
    Your webpage:

    Date of arrival:
    Date of departure:

    Travel funding request: (indicate approximate amount)

Please add a few words about your project(s) for the workshop.

-  ⇤ ← Revision 18 as of 2014-02-06 06:43:29 → 
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  Comment:
+   ← Revision 58 as of 2014-04-13 15:14:26 → ⇥
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  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 2:
-Line 6:
+Line 5:
-== Cernay 2014, Sage Days 57  ==
+== Sage Days 57, Cernay 2014 ==
-Line 13:
+Line 10:
-We booked the guest house 
[[http://www.cernayvacances.com/CEngels.html|The Tower]], a very nice and
cosy "gîte", just short of an hour from Paris by public transport.
+We booked the guest house
[[http://www.cernayvacances.com/en/stay/de-toren/|The Tower]] (and
[[http://www.cernayvacances.com/en/stay/le-grenier-royal/|Le grenier royal]]),
a very nice and cosy "gîte", just short of an hour from Paris by public transport.
-Line 17:
+Line 15:
-This follows the *-Combinat tradition of previous Sage-combinat
workshops and MuPAD-combinat workshops before that.
+This follows a tradition of *-combinat workshops: 
[[combinat/SageCombinatDaysCernay2012|2012]],
[[combinat/SageCombinatChevieWorkshopOrsay2010|2010]],
[[combinat/SageCombinatWorkshopOrsay|2009]], 
[[http://mupad-combinat.sourceforge.net/Wiki/SecondDevelopersMeeting|2007]]...
See the links for activity reports and some photos.
-Line 23:
+Line 25:
+The workshop is funded by ANR projects DynA3S, GeoDyM, PSyCo, with material help from the Mathematics and the Computer Science Departments at Université Paris-Sud, Orsay.
-Line 24:
+Line 27:
-== Tentative list of participants ==
+== Participants ==
-Line 26:
+Line 29:
- * Tomer Bauer (Bar-Ilan University, Ramat Gan, Israel)
 * Adrien Boussicault (Labri, Bordeaux, France)
 * Vincent Delecroix (Labri, Bordeaux, France)
 * Eric Gourgoulhon (Luth, Observatoire de Paris, France)
 * Samuel Lelièvre (LMO, U Paris-Sud, Orsay, France)
 * ThierryMonteil (Lirmm, Montpellier, France)
 * Nicolas M. Thiéry (LRI, U Paris-Sud, Orsay, France)
+. Tomer Bauer (Bar-Ilan U, Ramat Gan, Israel), 6--12 April
 2. Adrien Boussicault (LaBRI, Bordeaux, France)
 3. Volker Braun (Oxford U, UK)  6--12 April
 4. Nicolas Borie (U Paris-Est Marne-la-Vallée, France)
 5. Luca De Feo (U Versailles Saint-Quentin, France)
 6. Vincent Delecroix (Labri, Bordeaux, France) 5--12 April
 7. Matthieu Dien (UPMC, U Paris 6, Paris, France) 6--12 April
 8. Charles Fougeron (IMJ, U Paris 7, Paris, France)
 9. Eric Gourgoulhon (Luth, Observatoire de Paris, France)
 10. Florent Hivert (LRI, U Paris-Sud Orsay, France)
 11. Jean-Philippe Labbé (Freie U Berlin, Germany)
 12. Sébastien Labbé (LIAFA, Paris, France)
 13. Patxi Laborde Zubieta (LaBRI, Bordeaux, France) 5 - 12 April
 14. Samuel Lelièvre (LMO, U Paris-Sud, Orsay, France), 5--12 April
 15. Thierry Monteil (Lirmm, Montpellier, France)
 16. Vivien Ripoll (U Vienna, Austria)
 17. Nicolas M. Thiéry (LRI, U Paris-Sud, Orsay, France)
 18. Jean-Pierre Flori (ANSSI, Paris, France), 7 and (probably 9) April
-Line 34:
+Line 48:
-== Tentative list of themes ==
+== Programme and topics ==
-Line 36:
+Line 50:
-(Participants, please edit!)
+On Monday there will be an introduction to git for those interested.
-Line 38:
+Line 52:
-=== Coxeter groups ===
+The rest of the programme is decided together during the workshop.
-Line 40:
+Line 54:
-=== Languages ===
+If you have wishes or coding projects, please edit the [[days57-topics|list of topics]].
-Line 42:
+Line 56:
- * interested
   * Vincent
+== Status report ==
-Line 45:
+Line 58:
- * todo
   * implement the category of languages (from previous work of me and Stepan, [[http://trac.sagemath.org/ticket/12224|#12224]], [[http://trac.sagemath.org/ticket/12225|#12225]], [[http://trac.sagemath.org/ticket/12227|#12227]])
   * finish the inclusion of subshift of finite type and work on sofic shifts ([[http://trac.sagemath.org/ticket/12996|#12996]])
+ * Sébastien
   * ticket [[http://trac.sagemath.org/ticket/6637|#6637]]: cleaning !TransitiveIdeal and !TransitiveIdealGraded
   * Creation of !RecursivelyEnumeratedSet
   * Read my [[http://www.liafa.univ-paris-diderot.fr/~labbe/blogue/2014/04/my-status-report-at-sage-days-57-recursivelyenumeratedset/|status report here]]
-Line 49:
+Line 63:
-=== Translation surfaces ===
+ * Jean Philippe
   * ticket #15703
   * A nice 3D self-rotating picture representing limit set of a generic orbit under the action of a Coxeter group on the projective space.
   * upgraded his ubuntu and can now use Linux back again.
-Line 51:
+Line 68:
- * interested
   * Vincent
   * Samuel
   * Thierry
+ * Vivien
   * #16120 : add float to run
   * Found some bugs in the cyclotomic field and discovered that a ticket is waiting for 4 years.
-Line 56:
+Line 72:
- * todo
   * better datastructure for permutations
   * include Charles's code into Sage
   * implementat a datastructure for translation surfaces ?
+ * Charles
   * Ticket #16102
   * translation surfaces : merging his code with Vincent existing code.
-Line 61:
+Line 76:
-=== Tensors on free modules ===
+ * Tomer
   * #15595
   * #16092
   * #16090
   * Subgroup zeta functions, found some bugs in symbolic
-Line 63:
+Line 82:
- * interested
   * Eric
+ * Volker
   * Backend for polyhedra (especially double description algorithm) on AA
-Line 66:
+Line 85:
- * todo
   * implement tensor products of generic free modules of finite rank and the associated tensor algebra (by ''generic'' it is meant ''without any privileged basis'')
+ * Luca Thierry Vincent
   * An index for Sage pedagogical ressources.
-Line 69:
+Line 88:
+ * Thierry
   * rewiewed
-Line 70:
+Line 91:
-=== Worksheet repository ===
 * see DepotDeFeuillesDeCalcul; could be nice to first brainstorm all together, even for people not interested in coding
 * interested
   * Thierry
   * Eric
   * Vincent
   * Samuel
+ * Mathieu
   * #15673
   * #16107
   * Lazy power series.
-Line 78:
+Line 96:
+ * Patxi
   * tableaux, pbs with mutability
-Line 79:
+Line 99:
-== Practical information ==
+ * Nicolas B
  * review of the set factory
  * parallelization at low-level using multithreading
-Line 81:
+Line 103:
-=== Venue ===
+ * Florent
  * Parallelism in sage  (with Nicolas B.)
-Line 83:
+Line 106:
-The workshop takes place in a guest house, which has comfortable working spaces,
a cooking and dining area, and a few bedrooms. This favors an intense workshop,
with everything taking place in the same place.
+ * Nicolas T
  * lot of discussions
  * fixed long standing performance issue with categories which was one of the blocker for #10963
  * work on #16058: reorganisation of the index of sage.combinat in the reference manual
-Line 87:
+Line 111:
-We will set up a wired internet connection and an open wifi.
+ * Adrien
  * Implemented parallelogram polyomino.
-Line 89:
+Line 115:
-The Tower can accommodate 8-10 people and an adjacent guest house offers more
room if needed.

Meals are cooked in turns by the participants for everyone, so bring along your
favorite recipes and dishes!

The surrounding area offers nice hiking possibilities, bring hiking/climbing shoes.

Also bring music instruments/scores for the breaks.
+== Older informations ==
-Line 109:
+Line 127:
+=== Venue ===

The workshop takes place in a guest house, which has comfortable working spaces,
a cooking and dining area, and a few bedrooms. This favors an intense workshop,
with everything taking place in the same location.

We will set up a wired internet connection and an open wifi.

The Tower can accommodate 8-10 people and the adjacent guest house
we rented offers room for 6 more people.

The surrounding area offers nice hiking possibilities, bring hiking/climbing shoes.

Your music instruments and scores, card or board games, etc, are also welcome for the breaks.

== Meal organisation ==

Meals are cooked in turns by the participants for everyone, so bring along your
favorite recipes and dishes! All diets, including vegetarian, will be taken into
account.
-Line 111:
+Line 151:
-Accommodation and meals are covered by our funding sources.
+The workshop is funded by ANR projects DynA3S, GeoDyM, PSyCo, with material help from the Mathematics and the Computer Science Departments at Université Paris-Sud, Orsay.
-Line 113:
+Line 153:
-We also aim to fund travel for PhD students and postdocs.
+Accommodation and meals for all participants are covered by our funding sources.
-Line 115:
+Line 155:
-=== Registration ===

To register, please fill in the following form and email it to
[[http://www.labri.fr/perso/boussica/index_en.html|Adrien Boussicault]]::

{{{
    Name:
    will participate in the "Fourth Sage-Combinat Days in Cernay".
    Date of arrival:
    Date of departure:
}}}

Optionally, add a few words about your project in Cernay.
If you request funding, please indicate an approximate amount.
+We can also cover travel expenses for most participants, especially PhD students and postdocs.
-Line 134:
+Line 161:
- * [[http://maps.google.fr/maps?f=q&source=s_q&hl=fr&geocode=&q=Cernay+la+ville&sll=47.15984,2.988281&sspn=17.161007,44.516602&ie=UTF8&ll=48.675731,1.971735&spn=0.004066,0.010868&z=17|Map and and aerial photo]]
+ * [[http://maps.google.fr/maps?f=q&source=s_q&hl=fr&geocode=&q=Cernay+la+ville&sll=47.15984,2.988281&sspn=17.161007,44.516602&ie=UTF8&ll=48.675731,1.971735&spn=0.004066,0.010868&z=17|Map and aerial photo]]
-Line 136:
+Line 163:
-There are two bus stops in Cernay. The closest to the guest house is Grand'Place.
+ * Bus option
    * from St Remy (RER station), bus 39-03 or 39-103
    * from Rambouillet (SNCF station) line 39-03 and 39-203
   More information on schedules [[http://www.savac.fr/transports/lignes-regulieres/votre-ligne-reguliere|here]].
   Of the two bus stops in Cernay, Grand'Place is closest to the guest house.
   Beware that there are big gaps in the day with no buses to Cernay.
-Line 138:
+Line 170:
-Check travel itineraries on [[http://www.vianavigo.com/|ViaNavigo]].
Beware of big gaps in the day with no buses to Cernay!
+ * Check travel itineraries on [[http://www.vianavigo.com/|ViaNavigo]] (includes trains, RER, buses).
   Or [[http://ratp.fr|ratp]] but only for travel up to Saint-Rémy-les-Chevreuse.
-Line 141:
+Line 173:
-We will run some car shuttles from Saint-Rémy-les-Chevreuse. Pick-up times will
be arranged by email near the workshop time, according to arrival times of all.
+ * We will run some car shuttles from Saint-Rémy-les-Chevreuse : [[days57-car_shuttles|car shuttles organisation]]

=== Registration ===

To register, send an email with subject "Cernay 2014" to `[email protected]`,
where `(aaa,bbb,ccc,ddd) = (sage-cernay,math,u-psud,fr)`, filling in all
the fields you can from the following form.

{{{
    Fourth Sage-Combinat Days in Cernay

    Name:
    Position:
    Institution:
    Your webpage:

    Date of arrival:
    Date of departure:

    Travel funding request: (indicate approximate amount)
}}}

Please add a few words about your project(s) for the workshop.

Diff for "days57"