# Sage Days 14: Sage and Macaulay2 for Algebraic Geometry Experimentation

Contents

March 10 - 12, 2009 in Berkeley, CA

This is part of the massive 2009 algebraic geometry program at MSRI.

We now have a poster (or get the svg source file).

## Schedule

### Tuesday, March 10

9 - 10 am |
William Stein: Introduction to Sage (NOTE: some examples rely on functionality not yet merged into Sage. Stay tuned!) |

10:30 - 11:30 |
David Eisenbud and Mike Stillman: Doing Algebraic Geometry in Macaulay2 -- an introduction cubicsurface.m2 and cubicsurface.sws |

1:00 - 2:00pm |
Mike Hansen: The Sage/Macaulay2 interface |

2:30 - 3:30 pm |
Alex Ghitza: Algebraic Geometry using Sage main.pdf, SD14__Algebraic_schemes.sws, SD14__Morphisms_and_points.sws, SD14__Curves.sws, SD14__Elliptic_curves.sws, SD14__Visualisation_1.sws, SD14__Visualisation_2.sws, SD14__Visualisation_3.sws (NOTE: some graphing functionality relies on patches not yet merged into Sage -- so they'll probably not work for you yet.) |

4:00 - 5:30 pm |
Justin Walker et al.: Interactive Sage Tutorial - Using Sage (bring your laptop!) Sage Tutorial,Sage Resources,Sage Examples,RamifiedPrimes function |

5:30 - 6:00pm |
Project organization -- discussion by people interested in coding |

### Wednesday, March 11

9:30 - 10:30 am |
Andrey Novoseltsev: Fibered K3 Surfaces using Sage (a.k.a. Lattice Polytopes using Sage) K3viaSage.pdf, SD14PolytopeDemo.sws |

11:00am - 12:00 pm |
William Stein et al.: discussion about mathematical software -- what do you want? Questions |

1:30 - 3:00 pm |
Mike Hansen, Michael Abshoff: Interactive Sage Tutorial - Developing for Sage (bring your laptop!) |

afternoon/evening |
projects and discussion by people interested in coding in Evans Hall |

4:10–5:00pm, 740 Evans |
William Stein: Number Theory Seminar (not on Sage) |

### Thursday, March 12

10:30 - 11:30am |
Dan Bump: Lie theoretic methods in Sage (see http://sporadic.stanford.edu/bump/sagedays/) |

1:30 - 3:00pm |
final coding sprint project wrap-up |

## Organizers

- Local organizers: David Eisenbud (UC Berkeley), Daniel Erman (UC Berkeley), Dan Grayson (University of Illinois at Urbana-Champaign), Mike Stillman (Cornell University)
- Sage organizers: William Stein (University of Washington), Mike Hansen (University of Washington)

## Projects

## Participants

See http://www.msri.org/calendar/workshops/WorkshopInfo/502/show_participants for the official list -- the below is not comprehensive!

- Michael Abshoff
- David Eisenbud
- Daniel Erman
- Alex Ghitza
- Dan Grayson
- Mike Hansen
- Kiran Kedlaya (March 11-13)
- Mathias Koeppe
Emily Kirkman

- Peter Malkin
- Andrey Novoseltsev
- Steve Pon
- William Stein
- Mike Stillman
- Nicolas M. Thiéry
- Justin Walker
- Sébastian Xambo

## Hotel

We have a block of 8 rooms reserved at the Rose Garden Inn.

Participants needing hotel room (please add your name and dates here):

- William Stein (arrive March 9; leave March 12)
- Justin Walker (arrive March 9; leave March 12; have a room reserved)
- Alex Ghitza (March 8 to March 13)
- Andrey Novoseltsev (arrive March 9, leave March 12)
- Kiran Kedlaya (March 11 to 13, but may not need to use the block)

Reservations may be made by calling 1-800-992-9005 OR directly on their website. Click on Corporate at the bottom of the screen reached by the link in the previous sentence.