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*-Combinat 2009

International Sage Workshop on Free and Practical Software for Algebraic Combinatorics

Dates: July 25-29

Location: RISC, Linz, Austria

This event will follow FPSAC'09, and be part of RISC's summer 2009.

Goals

get new users and developers on board, especially from the FPSAC community
help former MuPAD-Combinat users to switch to Sage
developers meeting

Tentative program

Saturday:
- Sage and Sage-Combinat introductory talks
- Hands on tutorials
Sunday:
- Informal Sage-Combinat lab: come work on your own problem with experts at your full disposition
- Relaxed afternoon (to recover from a long FPSAC week)
Monday-Wednesday:
- Informal Sage-Combinat lab
- Technical talks
- Short focused tutorials (see below)
- Coding sprints
- Design discussions

Saturday, July 25
9:30-10:30	Burcin Erocal and FrancoSaliola	Introduction to Sage
9:30-10:30	Burcin Erocal and FrancoSaliola	an overview talk about Sage, which explains the history and motivation for the project, demonstrates some key features of Sage, and discusses where we are going next. It will be accessible to people in all research areas and assumes no prior experience with Sage.
10:30-10:45	Coffee Break
10:45-11:45	Florent Hivert and Nicolas Thiéry	Introduction to Sage-combinat
10:45-11:45	Florent Hivert and Nicolas Thiéry	an overview talk about Sage-combinat
11:45-13:30	Lunch Break
13:30-15:00	Franco Saliola and Nicolas Thiéry	Hands on Tutorials
13:30-15:00	Franco Saliola and Nicolas Thiéry	?summary?
15:00-15.30	Coffee Break
15:30-16:00	Jason Bandlow	Symmetric Functions
16:00-17:00	Burcin Erocal	How to get started developing Sage
16:00-17:00	Burcin Erocal	a summary of relevant bits and pieces for developing software with Sage
17:15-	Coding Sprint Organization	Short self introductions, list of project ideas and people willing to work on them

Sunday, July 26
9:30-12:00	Informal Sage-Combinat lab	come work on your own problem with experts at your full disposition
		?list of possible topics?
12:00-	Free afternoon

Monday, July 26
9:30-10:15	FrancoSaliola	Posets and words
10:15-10:30	Coffee Break
10:30-12:00	Carsten Schneider and Burcin Erocal	Difference Fields and Symbolic Summation in Sage
10:30-12:00	Carsten Schneider and Burcin Erocal	?summary?
12:00-13:30	Lunch Break
13:30-14:30	FrancoSaliola	Python tutorial 1
13:30-14:30	FrancoSaliola	Elements of the language for combinatorics
14:30-15:30	DanDrake	Combinatorial generation by backtracking
14:30-15:30	DanDrake	?summary?
15:30-16:00	Tea Time
16:00-17:00	Ralf Hemmecke and Florent Hivert	Combinatorial species and tree-like structures
16:00-17:00	Ralf Hemmecke and Florent Hivert	Practical use in Aldor and Sage
17:00-	Coding Sprint Status Reports

Tuesday, July 27
9:30-10:30	Anne Schilling and Nicolas M. Thiéry	Root systems, coxeter groups and crystals
10:30-11:30	Franco Saliola	Python tutorial 2
10:30-11:30	Franco Saliola	Data structures, dictionaries, hashing, mutability
11:30-12:00	Florent Hivert	Version control with mercurial for LaTeX and programming
12:00-13:30	Lunch Break
13:30-15:00	NicolasThiéry	Categories for the working mathematical programmer
13:30-15:00	NicolasThiéry	Implementing algebraic structures in Sage, using parent, elements, and categories
15:00-15:30	Tea Time
15:30-16:30	Florent Hivert NicolasThiéry	Implementing Hopf algebras
17:00-	Coding Sprint Status Reports

Wednesday, July 28
9:30-10:30	<speaker?>	Sharing experimental code with the Sage-Combinat patch server
10:30-12:00	Coding sprints
12:00-13:30	Lunch Break
13:30-	Coding sprints

Thursday, July 29
9:30-12:00	Coding sprints
12:00-13:30	Lunch Break
13:30-	Coding sprints
14:00-	Coding Sprint wrapup

Projects

Project page

Organizers

Registration

Registration is free, but please register on: http://www.conferences.jku.at/riscsummer2009/e2570/index_eng.html.

Very convenient and reasonably priced rooms are available for reservation from the same site, but may run out. Register early!

Prerequisites

All attendees are expected to have Sage >= 4.1 and the Sage-Combinat patches installed on their laptops. If you do not plan to bring a laptop, please contact the organizers, and we will have a terminal setup for you. Please come see us for help during FPSAC if you encounter any problem!

Sage 4.1 will be available shortly from: http://www.sagemath.org/download.html

See http://wiki.sagemath.org/combinat/MercurialStepByStep for the installation instructions of Sage-Combinat. On UNIX/Mac, it boils down to running the following command in a terminal:

sage -combinat install

T-Shirts

If you would like to get the T-Shirt for this workshop (~$10), please write the size below before July 11th. Here is the current design (suggestions welcome): front-nt.png back-nt-2.png

And if you wonder about the meaning: Sage is the powerful propeller allowing us to soar high to our Castle in the Sky. Our hope is that in return our scouting will help drive the car to new horizons.

Registered Participants

Jason Bandlow
NicolasBorie (T-Shirt size L)
Adrien Boussicault
Mahir Bilen Can
Hayat Cheballah
Anders Claesson
DanDrake (T-shirt size M)
Burcin Erocal (T-Shirt sizes M + S)
Valentin Féray
Christoph Fuerst
Ralf Hemmecke
FlorentHivert
Alain Lascoux
Conrado Martinez
Peter McNamara (leaving Monday afternoon)
Philippe Nadeau
Yasuhide NUMATA
Steven Pon
FrancoSaliola (leaving 28 July)
Anne Schilling (T-Shirt size S)
Flavia Stan
Jessica Striker
Hossein Teimoori
NicolasThiéry (T-Shirt size M)
Haseeb Ul Haq
Zafeirakis Zafeirakopoulos

Preliminary list of short tutorials

Besides the main general-purpose Sage-Combinat tutorial, we will run short tutorials focused on specific features, with a (flexible) format like 10 minutes of presentation; 20 minutes of exercises. Here are some ideas. Please feel free to suggest others, especially around some features you developed yourself!

Symmetric Functions, Non Commutative Symmetric Functions, using algebras with several basis (Jason? Nicolas?)
Implementing enriched enumerated sets, (e.g. how to enrich the partitions of 5 with a semi-groups structure) (Florent?)
Implementing new combinatorial objects (?)

-  ⇤ ← Revision 31 as of 2009-07-08 20:02:20 → 
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+   ← Revision 49 as of 2009-07-21 09:23:26 → ⇥
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-Deletions are marked like this.
+Additions are marked like this.
 Line 35:
-||<|2> 10:00-11:00 ||<|2> ?<speaker>? || Introduction to Sage||
|| an overview talk about Sage, which explains the history and motivation for the project, demos some key features of Sage, and discusses where we are going next. It will be accessible to people in all research areas and assumes no prior experience with Sage. ||
||<|2> 11:00-12:00 ||<|2> Florent&nbsp;Hivert and Nicolas&nbsp;Thiéry || Introduction to Sage-combinat||
+||<|2> 9:30-10:30 ||<|2> Burcin Erocal and FrancoSaliola || Introduction to Sage||
|| an overview talk about Sage, which explains the history and motivation for the project, demonstrates some key features of Sage, and discusses where we are going next. It will be accessible to people in all research areas and assumes no prior experience with Sage. ||
||<|1>10:30-10:45 || Coffee&nbsp;Break || ||
||<|2>10:45-11:45 ||<|2> Florent&nbsp;Hivert and Nicolas&nbsp;Thiéry || Introduction to Sage-combinat||
-Line 39:
+Line 40:
-|| 12:00-13:30 || Lunch&nbsp;Break || ||
|| 13.30-15:00 || Hands-on&nbsp;Tutorials || ||
|| 15:00-15.30 || Coffee&nbsp;Break || ||
||<|2> 15:30-16:30 ||<|2> Burcin&nbsp;Erocal || How to get started developing Sage||
+||<|1>11:45-13:30 || Lunch&nbsp;Break || ||
||<|2>13:30-15:00 ||<|2> Franco&nbsp;Saliola and Nicolas&nbsp;Thiéry || Hands on Tutorials||
|| ?summary? ||
||<|1>15:00-15.30|| Coffee&nbsp;Break || ||
||<|1>15:30-16:00|| Jason&nbsp;Bandlow || Symmetric Functions||
||<|2> 16:00-17:00 ||<|2> Burcin&nbsp;Erocal || How to get started developing Sage||
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-|| 16:30- || Coding Sprint Organization || Short self introductions, [[/projects|list of project ideas]] and people willing to work on them ||
+||<|1>17:15- || Coding Sprint Organization || Short self introductions, [[/projects|list of project ideas]] and people willing to work on them ||
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+Line 50:
-||<|2> 10:30-11:30 ||<|2> Informal Sage-Combinat lab || come work on your own problem with experts at your full disposition ||
+||<|2> 9:30-12:00 ||<|2> Informal Sage-Combinat lab || come work on your own problem with experts at your full disposition ||
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-|| 12:00- || Free afternoon || ||
+||<|1>12:00- || Free afternoon || ||
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+Line 55:
-||<|2> 10:00-11:00 ||<|2> ?<speaker>? || ?title?||
+||<|1>9:30-10:15||<|1>FrancoSaliola|| Posets and words||
||<|1>10:15-10:30|| Coffee&nbsp;Break || ||
||<|2>10:30-12:00||<|2>Carsten&nbsp;Schneider and Burcin&nbsp;Erocal|| Difference Fields and Symbolic Summation in Sage ||
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-||<|2> 11:00-12:00 ||<|2> ?<speaker>? || ?title?||
|| ?summary? ||
|| 12:00-13:30 || Lunch&nbsp;Break || ||
|| 16:00-- || Coding Sprint Status&nbsp;Reports || ||
+||<|1>12:00-13:30 || Lunch&nbsp;Break || ||
||<|2>13:30-14:30 ||<|2>FrancoSaliola|| Python tutorial 1||
||Elements of the language for combinatorics||
||<|2>14:30-15:30||<|2>DanDrake || Combinatorial generation by backtracking ||
||?summary?||
||15:30-16:00||Tea&nbsp;Time|| ||
||<|2> 16:00-17:00 ||<|2> Ralf&nbsp;Hemmecke and Florent&nbsp;Hivert || Combinatorial species and tree-like structures ||
|| Practical use in Aldor and Sage ||
||<|1>17:00-||Coding Sprint Status&nbsp;Reports|| ||
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-||<|2> 10:00-11:00 ||<|2> ?<speaker>? || ?title?||
|| ?summary? ||
||<|2> 11:00-12:00 ||<|2> ?<speaker>? || ?title?||
|| ?summary? ||
|| 12:00-13:30 || Lunch&nbsp;Break || ||
|| 16:00-- || Coding Sprint Status&nbsp;Reports || ||
+||<|1>9:30-10:30  || Anne&nbsp;Schilling and Nicolas M. Thiéry|| Root systems, coxeter groups and crystals ||
||<|2> 10:30-11:30 ||<|2> Franco&nbsp;Saliola || Python tutorial 2 ||
|| Data structures, dictionaries, hashing, mutability ||
||<|1> 11:30-12:00 || Florent&nbsp;Hivert|| Version control with mercurial for LaTeX and programming ||
||<|1> 12:00-13:30 || Lunch&nbsp;Break || ||
||<|2> 13:30-15:00 ||<|2> NicolasThiéry || Categories for the working mathematical programmer ||
|| Implementing algebraic structures in Sage, using parent, elements, and categories||
||<|1>15:00-15:30 || Tea&nbsp;Time || ||
||<|1> 15:30-16:30 || Florent&nbsp;Hivert NicolasThiéry || Implementing Hopf algebras ||
||<|1> 17:00- || Coding Sprint Status&nbsp;Reports || ||
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-||<|2> 10:00-11:00 ||<|2> Carsten&nbsp;Schneider || ?title?||
|| ?summary? ||
||<|2> 11:00-12:00 ||<|2> Burcin&nbsp;Erocal || Difference Fields and Symbolic Summation in Sage ||
|| ?summary? ||
|| 12:00-13:30 || Lunch&nbsp;Break || ||
|| 14:00-- || Coding Sprint wrapup || ||
+||<|1> 9:30-10:30 || <speaker?> || Sharing experimental code with the Sage-Combinat patch server||
||<|1> 10:30-12:00 || Coding sprints || ||
||<|1> 12:00-13:30 || Lunch&nbsp;Break || ||
||<|1> 13:30- || Coding sprints || ||

||||||<tablestyle="width: 80%" style="background-color: #E0E0FF;">Thursday, July 29||
||<|1> 9:30-12:00 || Coding sprints || ||
||<|1> 12:00-13:30 || Lunch&nbsp;Break || ||
||<|1> 13:30- || Coding sprints || ||
||<|1> 14:00- || Coding Sprint wrapup || ||
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+Line 123:
-If you would like to get the T-Shirt for this workshop, please contact the organizers before July 11th. Here is the current design (suggestions welcome):
[[attachment:front-nt.png]] [[attachment:back-nt.png]]
+If you would like to get the T-Shirt for this workshop (~$10), please write the size below before July 11th. Here is the current design (suggestions welcome):
[[attachment:front-nt.png]] [[attachment:back-nt-2.png]]

And if you wonder about the meaning: ``Sage is the powerful propeller allowing us to soar high to our [[http://you-tube.com/watch?v=860pEuwHgCw|Castle in the Sky]]. Our hope is that in return our
scouting will help drive the car to new horizons``.
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- * NicolasBorie
+ * NicolasBorie (T-Shirt size L)
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- * DanDrake
 * Burcin Erocal
+ * DanDrake (T-shirt size M)
 * Burcin Erocal (T-Shirt sizes M + S)
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+ * Peter McNamara (leaving Monday afternoon)
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+Line 150:
- * Anne Schilling
+ * Anne Schilling (T-Shirt size S)
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- * NicolasThiéry
+ * NicolasThiéry (T-Shirt size M)
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-== Unconfirmed participants ==

 * Michael Abshoff
 * HaraldSchilly
 * Paul-Olivier Dehaye
 * MikeHansen?
 * DavidJoyner? 
 * RobertMiller?
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- * Posets (Franco?)
 * Words (Franco?)
 * Species and decomposable classes in Axiom / Aldor / Maple / MuPAD (Mike? Ralf? Martin?)
 * guess in Axiom / Aldor (Martin?)
 * Coxeter groups, crystals (Anne, Nicolas)
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- * categories/parents/elements (Nicolas)
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- * Implementing new (Hopf) Algebras with bases (Florent? Nicolas?)
 * Sharing code with the Sage-combinat patch server
 * using the GenericBacktracker class to generate lattice paths and other objects (Dan Drake)?

Diff for "combinat/FPSAC09"