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 * [[http://sagemanifolds.obspm.fr/|SageManifolds]] inclusion into Sage (cf. [[http://trac.sagemath.org/ticket/18528|#18528]])
 * [[http://trac.sagemath.org/ticket/14901|Lie algebras #14901]] and implement their relationship with manifolds.
 * CW/Cube complexes by generalizing the manifold classes.
 * [[http://sagemanifolds.obspm.fr/|SageManifolds]] inclusion into Sage (cf. [[http://trac.sagemath.org/ticket/18528|#18528]]) (Travis, Eric)
 * [[http://trac.sagemath.org/ticket/14901|Lie algebras #14901]] and implement their relationship with manifolds. (Travis)
 * CW/Cube complexes by generalizing the manifold classes. (Travis)
Line 67: Line 67:
 * Improve persistent homology.
 * Simplicial sets. (Co)simplicial objects in various categories.
 * Improve persistent homology. (Travis, John)
 * Simplicial sets. (Co)simplicial objects in various categories. (John)
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 * Improve/Implement knot theory in Sage (cf. [[http://trac.sagemath.org/ticket/17030|#17030]] [[http://trac.sagemath.org/ticket/20509|#20509]])... and link it with Snappy?  * Improve/Implement knot theory in Sage (cf. [[http://trac.sagemath.org/ticket/17030|#17030]] [[http://trac.sagemath.org/ticket/20509|#20509]])... and link it with Snappy? (Travis, Miguel, Eric?, Nathan?)
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 * Improve/upgrade CHomP and its interface (cf. [[http://trac.sagemath.org/ticket/15202|#15202]])
 * Clean up simplicial complex code (some easy cleanups like allowing the `_enlarged` cache to persist in `add_face`, also generally examine the code)
 * Improve/upgrade CHomP and its interface (cf. [[http://trac.sagemath.org/ticket/15202|#15202]]) (Travis, John, Volker?)
 * Clean up simplicial complex code (some easy cleanups like allowing the `_enlarged` cache to persist in `add_face`, also generally examine the code) (Travis, John)
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 * Relative simplicial complexes. (Jeremy)
 * Exchanging information between 2D and 3D manifolds. (Vincent)

Sage Days 74: Differential geometry and topology

Sage Days 74 will take place on May 30 - June 2, 2016 at the Workshop Center (CIAS) of Observatoire de Paris, located in Meudon, near Paris, France.

Registration

Registration is free and now open. Contact Eric ([email protected]) and Travis ([email protected]) to register.

Schedule

The morning sessions will take place in Salle de Conférences du Château (CIAS building) and the afternoon sessions will be held in various rooms of CIAS.

Monday 30 May

9:30 - 10:30

Volker Braun

An introduction to SageMath

10:30 - 11:00

coffee break

11:00 - 12:00

Marc Culler

SnapPy (Part 1)

12:00 - 13:00

Nathan Dunfield

SnapPy (Part 2)

13:00 - 14:00

lunch at the Observatory cafeteria

14:00 - 15:00

Organization of working groups

15:00 - 16:00

working groups / coding sprints

16:00 - 16:30

coffee break

16:30 - ...

working groups / coding sprints

Tuesday 31 May

9:30 - 10:30

Nicolas Thiéry

Modelling mathematics in Sage
(parents, elements, categories, ...)

10:30 - 11:00

coffee break

11:00 - 12:00

Marcin Kostur

3D visualization

12:00 - 13:00

Volker Braun

Toric geometry

13:00 - 14:00

lunch at the Observatory cafeteria

14:00 - 16:00

working groups / coding sprints

16:00 - 16:30

coffee break

16:30 - 17:00

progress reports

17:00 - ...

working groups / coding sprints

Wednesday 1 June

9:30 - 10:30

John Palmieri

Simplicial sets

10:30 - 11:00

coffee break

11:00 - 12:00

Mark Bell

Flipper and Sage

12:00 - 13:00

Frédéric Vincent
& Thibaut Paumard

Gyoto code and geodesics

13:00 - 14:00

lunch at the Observatory cafeteria

14:00 - 16:00

working groups / coding sprints

16:00 - 16:30

coffee break

16:30 - 17:00

progress reports

17:00 - 18:30

working groups / coding sprints

18:30

social dinner

Thursday 2 June

9:30 - 10:30

Jeremy Martin

Simplicial and relative simplicial complexes

10:30 - 11:00

coffee break

11:00 - 12:00

Patrick Hooper

FlatSurf and translation surfaces in Sage (Part 1)

12:00 - 13:00

Vincent Delecroix

FlatSurf and translation surfaces in Sage (Part 2)

13:00 - 14:00

lunch at the Observatory cafeteria

14:00 - 15:00

progress reports

15:00 - 16:00

working groups / coding sprints

16:00 - 16:30

coffee break

16:30 - 17:00

progress reports

17:00 - ...

working groups / coding sprints

Projects

Here is a list of possible projects. Feel free to add your own to the list.

  • SageManifolds inclusion into Sage (cf. #18528) (Travis, Eric)

  • Lie algebras #14901 and implement their relationship with manifolds. (Travis)

  • CW/Cube complexes by generalizing the manifold classes. (Travis)
  • Computation of geodesics on pseudo-Riemannian manifolds.
  • Include the sage.geometry.riemannian_manifolds (i.e. parametrized surfaces) into the more general framework of SageManifolds.

  • Experiment plotting possibilities with OpenGL (nice stuff from SnapPy!) and more... for rendering in browser there is the WebGL javascript library that is supported by most browsers.

  • Improve persistent homology. (Travis, John)
  • Simplicial sets. (Co)simplicial objects in various categories. (John)
  • Incorporation of Kenzo? (see Repackaged in a sane way Kenzo)

  • Improve/Implement knot theory in Sage (cf. #17030 #20509)... and link it with Snappy? (Travis, Miguel, Eric?, Nathan?)

  • Implement more (co)homology theories (e.g., De Rham cohomology).
  • Implement methods for computing homotopy groups.
  • Tropical curves/geometry.
  • Implement Lie groups and related geometric objects such as Schubert cells.
  • Implement geometric crystals.
  • Implement hyperbolic space for dimensions > 2.

  • Implement common metric spaces; for example, Lp spaces.

  • Combine/standardize features of the hyperbolic plane with SageManifolds.

  • Sage development workflow (cf. https://wiki.sagemath.org/CodeSharingWorkflow)

  • Improve/upgrade CHomP and its interface (cf. #15202) (Travis, John, Volker?)

  • Clean up simplicial complex code (some easy cleanups like allowing the _enlarged cache to persist in add_face, also generally examine the code) (Travis, John)

  • From Nathan's talk: Make SnapPy a Sage package, Sage attach and !TKinter, Modernize CyPari, Modularization of some parts of SageMath kernel for use in stand-alone Snpa. See #15152 for the "attach" issue.

  • Relative simplicial complexes. (Jeremy)
  • Exchanging information between 2D and 3D manifolds. (Vincent)

There is also the SageMathCloud project page available for collaborations:

https://cloud.sagemath.com/projects/bc98ddf4-68da-49db-8986-90c80b24daa3/files/

Details

Lodging

We recommend to book a room in some hotel in Paris, in Montparnasse area (14th arrondissement). In particular, we recommend the

Other hotels are

If you prefer to stay in Meudon, at a walking distance (25 min) from the Workshop Center (CIAS), see

For a larger choice, see this list of convenient hotels from LESIA/Observatoire de Paris.

NB: since May/June is a high touristic season in Paris, it is recommended to book a room as soon as possible!

Transportation

Meudon is located at 10 min by train from Montparnasse station in Paris. All hotels listed above are located at a walking distance from Montparnasse station. A system of car shuttle will be organized from Meudon station to the Workshop Center (CIAS).

If you plan instead to come by your own, please follow these access instructions (click on the map to enlarge it; the CIAS is located in BAT. 9).

Funding

European participants receiving some OpenDreamKit funding for conferences/workshops are expected to use it to cover their expenses.

Support

Speakers

  • Mark Bell (University of Illinois, Urbana-Champaign)
  • Volker Braun (Berlin)
  • Marc Culler (University of Illinois, Chicago)
  • Vincent Delecroix (University of Bordeaux)
  • Nathan Dunfield (University of Illinois, Urbana-Champaign)
  • Patrick Hooper (City College of New York)
  • Marcin Kostur (University of Silesia, Katowice)
  • Jeremy L. Martin (University of Kansas, Lawrence)
  • John Palmieri (University of Washington, Seattle)
  • Thibaut Paumard (Observatoire de Paris)
  • Nicolas Thiéry (University Paris Sud)
  • Frédéric Vincent (Observatoire de Paris, France)

Participants

  • Michal Bejger (N. Copernicus Astronomical Center, Warsaw, Poland)
  • Mark Bell (University of Illinois, Urbana-Champaign, USA)
  • Volker Braun (Berlin, Germany)
  • Léo Brunswic (University of Avignon, France)
  • Marc Culler (University of Illinois, Chicago, USA)
  • Vincent Delecroix (University of Bordeaux, France)
  • Jeroen Demeyer (Ghent University, Belgium / University Paris Sud, France)
  • Nathan Dunfield (University of Illinois, Urbana-Champaign, USA)
  • Anastasia Golubtsova (Bogoliubov Laboratory of Theoretical Physics, Dubna, Russia)
  • Eric Gourgoulhon (Observatoire de Paris, France)
  • Claudia Grabs (University of Potsdam, Germany)
  • Patrick Hooper (City College of New York, USA)
  • Marcin Kostur (University of Silesia, Katowice, Poland)
  • Ronja Kuhne (University of Warwick, UK)
  • Samuel Lelièvre (University Paris Sud, France)
  • Alba Malaga Sabogal (Aix-Marseille Université, France)
  • Marco Mancini (Observatoire de Paris, France)
  • Jeremy L. Martin (University of Kansas, Lawrence, USA)
  • Thomas Morzadec (University Paris Sud, France)
  • John Palmieri (University of Washington, Seattle, USA)
  • Thibaut Paumard (Observatoire de Paris, France)
  • Bonnie Saunders (University of Illinois, Chicago, USA)
  • Travis Scrimshaw (University of Minnesota, USA)
  • Nicolas Thiéry (University Paris Sud, France)
  • Artur Trzesiok (Poland)
  • Frédéric Vincent (Observatoire de Paris, France)

Remote:

  • Miguel Angel Marco Buzunariz (University of Zaragoza, Spain)

Organizers

  • Eric Gourgoulhon (Observatoire de Paris)
  • Marco Mancini (Observatoire de Paris)
  • Benoît Pilorget (OpenDreamKit)

  • Travis Scrimshaw (University of Minnesota)

days74 (last edited 2016-06-14 18:11:36 by mkostur)