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.. Note:: What's New: * Final demos Friday June 21 at 3pm. * Reintroduction to Sage Thursday June 20, by Travis Scrimshaw, Petit Amphi. * `photo gallery <https://www.dropbox.com/sh/ma0wmlaa3dkrhrb/Vo0NQzm90>`_ * Check the `complete schedule`_ for links to tutorials and slides of talks. * Address for Tuesday's get together (8pm): 39 avenue de Tilleuls, BuressurYvette. A group will leave from the Math building at 7:15pm, from the hotel at 7:30pm. * `map2 <http://goo.gl/maps/tdWM2>`_ with points of interest (Math department, Hotel, grocery store, restaurants) * `FindStat <http://www.findstat.org>`_ demo Tuesday June 18, 2pm. * The closest RER station to the hotel: Residhome Bures La Guyonnerie is **BuressurYvette** (one station after OrsayVille, see `map <http://goo.gl/maps/6VsP5>`_) * The `complete schedule`_ which contains abstracts (*note* first talk on Monday is now at 10h). * The wiki page to organize `projects and coding sprints`_ is ready. Add an entry for your project there or attach your name to a project that you'd like to work on. * Information on how to get to Orsay from airports in Paris. .. _`complete schedule`: days49_schedule .. _`projects and coding sprints`: days49_projects 

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Sponsors   NSF grant OCI1147247, Collaborative Research: SI2SSE: Sagecombinat: Developing and Sharing Open Source Software for Algebraic Combinatorics  `Laboratoire de Recherche en informatique <http://lri.fr>`_, `Université Paris Sud <http://www.upsud.fr/>`_  `Laboratoire de mathématiques <http://math.upsud.fr>`_, `Université Paris Sud <http://www.upsud.fr/>`_ 

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* MondayWednesday: coding sprints * ThursdayFriday: tutorial for newcomers, with a slant toward algebraic combinatorics Newcomers are in fact welcome to join from the beginning of the week; 
Below is a timetable for the week; a full detailed schedule is available `here`__. __ days49_schedule +++++++  MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY  +=====+=================+=================+================+================+====================+ 09h00Welcome, Talk II Tutorial III Talk IV Open   Sage installation T. Roby  contributing  M. Mezzarobba Presentations     to Sage     Coffee  C. Berg    +++++++ 10h00Introduction to Coffee Break Coffee Break Coffee Break Coffee Break  ++Sage +++++ 10h30Tom Denton Tutorial II Tutorial IV Tutorial IV Open  +++ Programming in  coercion and coercion and Presentations  10h45Tutorial I Python and Sage category category    Sage notebook andV. Pons framework framework    help system  S. King (continued)    M. GuayPaquet   S. King   +++++++ 11h30Talk I Talk III       M. Zabrocki  S. King            +++++++ 12h30Lunch Lunch Lunch Lunch Lunch         +++++++ 14h00Round table FindStat Demo Exercises and Digiteo Seminar Exercises and    discussion (Chris, Viviane, Coding Sprints G. Gonthier* Coding Sprints   A. Schilling Travis)     ++    ++ 15h00    Final Status Reports ++++++  15h30Coffee Break Coffee Break Coffee Break Coffee Break   ++++++  16h00Coding Sprints Coding Sprints Coding Sprints Coding Sprints   +++++++ 17h00Coding Sprints Status Reports Status Reports Reintro. to Sage      T. Scrimshaw   +++++++ * Monday morningWednesday morning: tutorial for newcomers and talks with a slant toward algebraic combinatorics * Afternoons and rest of the week: coding sprints * Thusrday 2pm3pm: by a coincidence, the `Digiteo Seminar <http://www.digiteo.fr/prochaineseanceduseminairedigiteoorganiseeavec>`_ will take place in our conference room, with a distinguished lecture by Georges Gonthier on computerchecked proofs: Le génie mathématique, du théorème de quatre couleurs à la classification des groupes. Newcomers are welcome to join later in the week; 
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Access  The workshop will be held at the Faculté d'Orsay, probably in the `math department <http://www.math.upsud.fr/acces.php>`_. It's 45 minutes from Paris downtown by local trains, and a five minute walk from the hotel (see below). 
Access and directions  The workshop will be held at the Faculté d'Orsay, in the `math department <http://www.math.upsud.fr/acces.php>`_ in the Petit Amphi of the Bâtiment 425. The **math department** is 45 minutes from Paris downtown by local trains (take the `RER B <http://www.ratp.fr/informer/pdf/orienter/f_plan.php?loc=reseaux&nompdf=rer_b&fm=gif>`_ from Charles de Gaulle or downtown Paris in the direction of StRémylesChevreuse and get off at OrsayVille). For more details see `directions <http://www.math.upsud.fr/acces.php>`_ (in french). To purchase the train ticket, there are green machines that take credit cards or coins but no bills. The price to Orsay is 13 euros. The closest RER station to the **hotel**: Residhome Bures La Guyonnerie is **BuressurYvette** (one station after OrsayVille) (see `map <http://goo.gl/maps/6VsP5>`_). Here is a `map2 <http://goo.gl/maps/tdWM2>`_ with points of interest (Math department, Hotel, grocery store, restaurants) The math department is a five minute walk from the hotel (see below). Depuis Paris, prendre le RER ( ligne B ) en direction de StRémylesChevreuse, et descendre à OrsayVille. Se diriger vers le bas de la vallée. On peut alors continuer à pied jusqu'à l'entrée principale de l'Université, puis suivre le sentier qui remonte, jusqu'au fléchage indiquant le bâtiment 425 vers la gauche ( voir le plan en cliquant ici ). Il est également possible de prendre le bus 0607 ( voir le circuit du bus ) jusqu'à l'arrêt "Château", et suivre le fléchage à partir de là. (From Paris, take the RER (line B) to StRemylesChevreuse and get off at OrsayVille. Proceed down the valley. We can then continue on foot to the main entrance of the University, then follow the path back until signs indicating the 425 building to the left (see map here). It is also possible to take the bus 0607 (see circuit bus) to stop "Castle", and follow the signs from there.) 
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See the `Projects list <http:/combinat/FPSAC13_projects>`_.  The wiki page for the projects and coding springs is available `here`__. __ days49_projects 
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You should reserve your room from the link above. To benefit from the reduced price you just need to mention that you come for the "Sage Days 49 conference" in the "Question" open field. The price reduction won't show up on the web but that's ok: you will get the reduction when you will make the final payment at the counter. 

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To reserve a room, please send them an email at *[email protected]* or call *+33 1 64 86 36 00*. Mention that you come for the "Sage Days 49 conference". If you want to share a twin room, mention it and specify who your room mate will be. 

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they tend to be booked early*. Therefore you are strongly encouraged to reserve your room as soon as possible, even if you are not absolutely sure about the dates. You can cancel your reservation later on (see their web site for details). And in the worst case some other participant is likely to be happy to take over your reservation. 
they will run out soon*. Therefore you are urged to reserve your room as soon as possible. 
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For now this all you need to do to request funding.  If you were promised NSF funding, then please send the filled out `form <http://wiki.sagemath.org/combinat/FPSAC13?action=AttachFile&do=view&target=Travel_expense_report+fillable_09.pdf>`_ along with the original receipts to Jessica Goodall at Jessica Goodall, Department of Mathematics, University of California, One Shields Avenue, Davis, CA 95616 or by email to [email protected] . Invited speakers   `Simon King <http://users.minet.unijena.de/~king/eindex.html>`_ (FriedrichSchillerUniversität Jena)  `Tom Roby <http://www.math.uconn.edu/~troby/>`_ (University of Conneticut)  `Marc Mezzarobba <http://www.marc.mezzarobba.net>`_ (RISC, Johannes Kepler Universität Linz)  `Mike Zabrocki <http://garsia.math.yorku.ca/~zabrocki/>`_ (York University) Tentative list of participants  See the `poll <http://framadate.org/3p4vprml76v9r3vz>`_. If you are in the list below, please register above!  Vivien Ripoll (UQAM)  Mike Hansen (Harvey Mudd) 
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Invited speakers   `Tom Roby <http://www.math.uconn.edu/~troby/>`_ (University of Conneticut)  Mike Zabrocki (York University) Tentative list of participants   Dana Ernst (Northern Arizona)  Travis Scrimshaw (UC Davis)  Mathieu GuayPaquet (UQAM)  Mike Hansen (Harvey Mudd)  Darij Grinberg (MIT)  Anne Schilling (UC Davis)  Chris Berg (UQAM)  Florent Hivert (Paris Sud)  Nicolas M. Thiéry (Paris Sud)  Alejandro Morales (UQAM)  Bruce Westbury (Warwick)  Sam Clearman (Lehigh)  Vivien Ripoll (UQAM)  Austin Roberts (U. Washington)  Laura Escobar (Cornell)  Yan Zhang (MIT)  Martin Rubey (TU Wien, only Thursday and Friday)  Matthieu Deneufchâtel (Paris 13)  Salvatore Stella (Northeastern University) I could use some funding if available  William Slofstra (UC Davis) 

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Why Orsay?  “Be grateful you’re not in the forest in France Where the average young person just hasn’t a chance To escape from the perilous pants eating plants But your pants are safe, you’re a fortunate guy You ought to be shouting how lucky am I”  Dr. Seuss, Did I Ever Tell You How Lucky You Are? 
Sage Days 49: Free and Practical Software for (Algebraic) Combinatorics, June 17th21st, Orsay
Note
What's New:
 Final demos Friday June 21 at 3pm.
 Reintroduction to Sage Thursday June 20, by Travis Scrimshaw, Petit Amphi.
 photo gallery
 Check the complete schedule for links to tutorials and slides of talks.
 Address for Tuesday's get together (8pm): 39 avenue de Tilleuls, BuressurYvette. A group will leave from the Math building at 7:15pm, from the hotel at 7:30pm.
 map2 with points of interest (Math department, Hotel, grocery store, restaurants)
 FindStat demo Tuesday June 18, 2pm.
 The closest RER station to the hotel: Residhome Bures La Guyonnerie is BuressurYvette (one station after OrsayVille, see map)
 The complete schedule which contains abstracts (note first talk on Monday is now at 10h).
 The wiki page to organize projects and coding sprints is ready. Add an entry for your project there or attach your name to a project that you'd like to work on.
 Information on how to get to Orsay from airports in Paris.
FPSAC 2013 (Formal Power Series and Algebraic Combinatorics) is the main yearly international conference in algebraic combinatorics. It will happen this year in Paris, June 24th28th. We are organizing a SageCombinat Days as a satellite event the week before:
Sage Days 49: Free and Practical Software for (Algebraic) Combinatorics
Orsay (south west suburb of Paris)
June 17th21st 2013
Sponsors
 NSF grant OCI1147247, Collaborative Research: SI2SSE: Sagecombinat: Developing and Sharing Open Source Software for Algebraic Combinatorics
 Laboratoire de Recherche en informatique, Université Paris Sud
 Laboratoire de mathématiques, Université Paris Sud
Tentative Schedule
Below is a timetable for the week; a full detailed schedule is available here.
MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY 09h00 Welcome, Sage installation
Coffee
Talk II  T. Roby Tutorial III  contributing to Sage C. Berg Talk IV  M. Mezzarobba Open Presentations 10h00 Introduction to Sage Tom Denton Coffee Break Coffee Break Coffee Break Coffee Break 10h30 Tutorial II  Programming in Python and Sage V. Pons Tutorial IV  coercion and category framework S. King Tutorial IV coercion and category framework (continued) S. King Open Presentations 10h45 Tutorial I Sage notebook and help system M. GuayPaquet 11h30 Talk I  M. Zabrocki Talk III  S. King 12h30 Lunch Lunch Lunch Lunch Lunch 14h00 Round table  discussion A. Schilling FindStat Demo (Chris, Viviane, Travis) Exercises and Coding Sprints Digiteo Seminar G. Gonthier* Exercises and Coding Sprints 15h00 Final Status Reports 15h30 Coffee Break Coffee Break Coffee Break Coffee Break 16h00 Coding Sprints Coding Sprints Coding Sprints Coding Sprints 17h00 Coding Sprints Status Reports Status Reports Reintro. to Sage T. Scrimshaw
 Monday morningWednesday morning: tutorial for newcomers and talks with a slant toward algebraic combinatorics
 Afternoons and rest of the week: coding sprints
 Thusrday 2pm3pm: by a coincidence, the Digiteo Seminar will take place in our conference room, with a distinguished lecture by Georges Gonthier on computerchecked proofs: Le génie mathématique, du théorème de quatre couleurs à la classification des groupes.
Newcomers are welcome to join later in the week; there won't be specific events organized for them then, but we will be available for questions and discussions while they get through tutorials on their own or work on their personnal projects.
Access and directions
The workshop will be held at the Faculté d'Orsay, in the math department in the Petit Amphi of the Bâtiment 425.
The math department is 45 minutes from Paris downtown by local trains (take the RER B from Charles de Gaulle or downtown Paris in the direction of StRémylesChevreuse and get off at OrsayVille). For more details see directions (in french). To purchase the train ticket, there are green machines that take credit cards or coins but no bills. The price to Orsay is 13 euros.
The closest RER station to the hotel: Residhome Bures La Guyonnerie is BuressurYvette (one station after OrsayVille) (see map).
Here is a map2 with points of interest (Math department, Hotel, grocery store, restaurants)
The math department is a five minute walk from the hotel (see below).
Depuis Paris, prendre le RER ( ligne B ) en direction de StRémylesChevreuse, et descendre à OrsayVille. Se diriger vers le bas de la vallée. On peut alors continuer à pied jusqu'à l'entrée principale de l'Université, puis suivre le sentier qui remonte, jusqu'au fléchage indiquant le bâtiment 425 vers la gauche ( voir le plan en cliquant ici ). Il est également possible de prendre le bus 0607 ( voir le circuit du bus ) jusqu'à l'arrêt "Château", et suivre le fléchage à partir de là.
(From Paris, take the RER (line B) to StRemylesChevreuse and get off at OrsayVille. Proceed down the valley. We can then continue on foot to the main entrance of the University, then follow the path back until signs indicating the 425 building to the left (see map here). It is also possible to take the bus 0607 (see circuit bus) to stop "Castle", and follow the signs from there.)
Projects
The wiki page for the projects and coding springs is available here.
Registration
Participation is free. To register, please fill in this poll so that we can plan ahead for rooms, coffee breaks, ... and also to optimize the lodging. Please send us your email address as well so that we can get in touch with you as the workshop gets closer.
Lodging
We have negociated a reduced price at the nearby Residhome Appart Hotel from BuressurYvette. The rate is of 66€ per night (56€ 5 nights or more) for a two person studio (double bed or twin bed). There is also a reduced rate of 106€ (90€ for 5 nights or more) for a four person apartment (two double beds; probably not so convenient). Breakfast is not included; see the web site for the amenities.
To reduce the expenses you are strongly encouraged to find a room mate to share a double room with. In particular, for those person that will get funding from us for lodging, we will most likely reimburse on the basis of 33 euros per night in order to support more participants.
To reserve a room, please send them an email at bures.guyonnerie@residhome.com or call +33 1 64 86 36 00. Mention that you come for the "Sage Days 49 conference". If you want to share a twin room, mention it and specify who your room mate will be.
Caveat: there are only a limited number of rooms with twin beds, and they will run out soon. Therefore you are urged to reserve your room as soon as possible.
Funding
For participants coming from universities in the United States, there is funding from our SageCombinat NSF grant. Please email Anne Schilling (email anne at math.ucdavis.edu) with your CV and an estimated budget. The deadline for this is March 30, 2013. Later applications will be considered as long as funds are available.
If you were promised NSF funding, then please send the filled out form along with the original receipts to Jessica Goodall at
Jessica Goodall, Department of Mathematics, University of California, One Shields Avenue, Davis, CA 95616 or by email to jgoodall@math.ucdavis.edu .
Invited speakers
 Simon King (FriedrichSchillerUniversität Jena)
 Tom Roby (University of Conneticut)
 Marc Mezzarobba (RISC, Johannes Kepler Universität Linz)
 Mike Zabrocki (York University)
Tentative list of participants
See the poll.
If you are in the list below, please register above!
 Vivien Ripoll (UQAM)
 Mike Hansen (Harvey Mudd)
Organizers
 Nicolas Thiery (LRI, Université Paris Sud, Orsay)
 Alejandro Morales (UQAM, Montréal, email: ahmorales at lacim.ca)
 Anne Schilling (UC Davis)
Why 49?
Because that's 7^2
Why Orsay?
“Be grateful you’re not in the forest in France
Where the average young person just hasn’t a chance
To escape from the perilous pants eating plants
But your pants are safe, you’re a fortunate guy
You ought to be shouting how lucky am I”
 Dr. Seuss, Did I Ever Tell You How Lucky You Are?