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Location: Seattle, WA == Logistics ==
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Time: TBD Organizers: William Stein, Chris Hall, Craig Citro, Salman Baig
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== Tentative Participants == Location: The [[http://www.shueyhouse.com/|Shuey House]], 5218 16th Ave NE, Seattle, WA 98105
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 * Salman Baig Dates: May 24 - 28, 2010 (check in on May 23rd after 4:00pm, check out on May 29th by 10:30am)
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 * Gebhard Boeckle: "For me some time between May 17 to June 5 would be good. [I give a lecture series in Barcelona form June 14-June 25, so June 5 is the very latest, the activity in Seattle would need to end.]" Mailing list: Group [[http://groups.google.com/group/sagedays21|page]].
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 * Craig Citro === Housing ===
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 * Chris Hall A handful of visitors will be staying at the Shuey House, while the remaining visitors have rooms on hold for them at [[http://www.hoteldeca.com|Hotel Deca]] (4507 Brooklyn Avenue NE, Seattle, WA 98105). The tentative housing arrangement is as follows:
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 * Kiran Kedlaya: "The one week I might be able to make it is June 7-11. Not that I can guarantee my attendance if you do schedule it that week, but at least I'm interested and I don't have an apparent conflict like I do with the weeks around it." ==== The Shuey House ====
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 * Steven J Miller: "I am interested whenever it may be. Our finals end on May 24, graduation is June 5-6; however, I can find someone to cover for me if needed."  * Second floor ([[http://www.shueyhouse.com/second%20floor.jpg|layout]])
  * Master suite bedroom: K. Wilson and S. Miller
  * Bedroom 2: J. Balakrishnan
  * Bedroom 3: C. Hall
  * Bedroom 4: F. Hess
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 * William Stein  * Third Floor ([[http://www.shueyhouse.com/thirdfloor.jpg|layout]])
  * Bedroom 1: G. Moehlmann, R. Butenuth
  * Bedroom 2: T. Occhipinti
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 * Doug Ulmer: "May is pretty open for me, the best dates being roughly 5/10-21. Earlier is possible. It gets much more complicated after that and impossible after Memorial Day." ==== Hotel Deca ====
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 * Felipe Voloch: "I'm currently free May-June and August-December 2010."  * G. Boeckle
 * D. Ulmer
 * F. Voloch

=== Getting to the Shuey House/Hotel Deca from Seattle-Tacoma ===

Here are some options to get to the Shuey House or Hotel Deca from the airport:

 * [[http://www.yelp.com/biz/a-abc-transportation-seattle#hrid:keLb-JbNNBPNxcvoGUwIOQ/src:search/query:car%20service|A-ABC Transportation]] offers a flat rate ($30 typically, before tip) for door-to-door car service. I (Salman) have used them multiple times, and they are my preferred transportation to/from the airport if I'm traveling by myself. They are a private car service (though they don't have the nicest fleet of cars) and are less expensive than a cab. Call 206-242-0102 for a reservation.
 * Taxis from the airport cost about $40 (before tip) and can be found by following the signs in the airport.
 * [[http://shuttleexpress.com/seatac-airport/default.aspx|Shuttle Express]] picks up passengers at the inner curb on the third floor of the Airport Garage. Call 425-981-7000 to make a reservation.
 * There is a new light-rail service from the airport to downtown Seattle, but you will then need to take a taxi to the house/hotel (about 5 miles north of downtown). This is not a good option unless you want to spend time in downtown Seattle.

=== Getting Around ===

Both the Shuey House and Hotel Deca are close to the UW campus as well as plenty of restaurants, coffee shops, etc. You will find that you can walk to nearly anything you like from the house or hotel, so a car is probably unnecessary. If you do plan on renting a car, please let me (Salman) know, and I will provide you information on parking, getting to/from the hotel, etc.

Seattle also has a well-connected [[http://metro.kingcounty.gov/|bus]] system, which can be used if you want to get out of the University District and explore the rest of the city. Talk to Craig or Salman if you have any questions about riding the buses.

=== Map ===

Here's a Google [[http://maps.google.com/maps/ms?ie=UTF8&hl=en&msa=0&msid=103028083620229012626.00048318482c1f79ef823&ll=47.662107,-122.307487&spn=0.008946,0.015814&z=16|map]] with the major locations marked.

This is a [[http://www.washington.edu/home/maps/northcentral.html|campus map]] that shows the location of Padelford (the Math department) and Savery and Thomson Halls (where talks on Monday will be).

== Participants ==

 * Salman Baig (Washington)
 * Jen Balakrishnan (MIT) [5/22-5/28]
 * Rob Beezer (Univ of Puget Sound)
 * Gebhard Boeckle (Universitat Duisburg-Essen) [5/22-5/29]
 * Tom Boothby (Washington)
 * Robert Bradshaw (Washington)
 * Ralf Butenuth (Universitat Duisburg-Essen) [5/21-5/30]
 * Craig Citro (Washington)
 * Alyson Deines (Washington)
 * Mike Hansen
 * Chris Hall (Wyoming)
 * Florian Hess (Technische Universitat Berlin) [5/23-5/28]
 * Jacob Lewis (Washington)
 * Robert Miller (Washington)
 * Steven J Miller (Williams) [5/23-5/27]
 * Gerriet Moehlmann (Technische Universitat Berlin)
 * Thomas Occhipinti (Arizona) [5/23-5/29]
 * Dan Shumow (Washington)
 * William Stein (Washington)
 * Doug Ulmer (Georgia Tech) [5/23-5/26]
 * Felipe Voloch (Texas) [5/23-5/29]
 * Wenhan Wang (Washington)
 * Kevin Wilson (Princeton)

== Projects ==

 * $L$-functions and the Birch and Swinnerton-Dyer Conjecture over function fields
  * Baig, Balakrishnan, Hall, Occhipinti, Ulmer, Voloch
 * The Mordell-Weil group (descent, computing the algebraic rank, finding generators, torsion)
  * Baig, Balakrishnan, Bradshaw, Hall, Hess, Moehlmann, Ulmer, Voloch
 * Drinfeld modular forms
  * Baig, Boeckle, Butenuth, Hall, Ulmer
 * Statistics over function fields
  * Baig, Conrey, Hall, Miller
 * "Cremona's Tables" for function fields
 * Small Characteristic (2 - 7)
  * Boothby

== Schedule ==

We will have one full day of organized talks, followed by working sessions and status reports the rest of the week. Informal talks are also welcome and will be left to individuals and working groups to organize.

=== Monday, May 24 ===
|| 9:30am - 9:45am || Welcome || Savery Hall 155 || ||
|| 9:45am - 10:45am || Function Fields and Number Fields || Savery Hall 155 || D. Ulmer ||
|| 10:45am - 11:20am || An Introduction to Sage for Number Theorists || Savery Hall 155 || C. Citro ||
|| 11:30am - 1:30pm || Lunch || || ||
|| 1:30pm - 2:30pm || Drinfeld Modular Forms and Harmonic Cocycles || Thomson Hall 231 || G. Boeckle ||
|| 2:30pm - 3:30pm || Computing Drinfeld Modular Forms || Thomson Hall 231 || R. Butenuth ||
|| 3:30pm - 4:00pm || Tea || || ||
|| 4:30pm - 5:30pm || TBD || Savery Hall 139 || C. Hall ||
|| 5:30pm - 6:30pm || Organizational meeting || Savery Hall 139 || ||

==== Talk Abstracts ====

Function Fields and Number Fields (Ulmer): I will try to explain some of the analogies between arithmetic in these two domains and also why we can often do more in the function field setting.

An Introduction to Sage for Number Theorists (Citro): I will give a short introduction to Sage, highlighting aspects that are particularly relevant for number theory. You are welcome to come armed with questions, especially of the "can Sage do <insert your
favorite thing here>" variety.

Drinfeld Modular Forms and Harmonic Cocycles (Boeckle): In this talk I shall introduce the main concepts needed to understand
Drinfeld cusp forms and the combinatorics that allows their computation: The Bruhat-Tits tree, Drinfeld's symmetric space, the cusp forms and harmonic cocycles. I shall state many of the basic theorems including some of Teitelbaum's work relating Drinfeld cusp forms and harmonic cocycles. I will also present a (very incomplete and subjective) list of open questions.

Computing Drinfeld Modular Forms (Butenuth): Drinfeld modular forms can be related to harmonic cochains, which are functions on the edges of the Bruhat-Tits tree fulfilling certain properties. In my talk I will try to explain how to relate Drinfeld modular forms to these objects and how to explicitly compute Hecke operators on them.

=== Tuesday, May 25 ===

Free day to work or organize talks.

=== Wednesday, May 26 ===
|| 11:00am - 12:00pm || Status reports || Shuey House ||

=== Thursday, May 27 ===

Free day to work or organize talks.

=== Friday, May 28 ===
|| 11:00am - 12:00pm || Final status reports || Shuey House ||

== Reading List ==

A reading list can be found [[/readinglist|here]] where participants can add items as well.

Sage Days 21: Function Fields

Logistics

Organizers: William Stein, Chris Hall, Craig Citro, Salman Baig

Location: The Shuey House, 5218 16th Ave NE, Seattle, WA 98105

Dates: May 24 - 28, 2010 (check in on May 23rd after 4:00pm, check out on May 29th by 10:30am)

Mailing list: Group page.

Housing

A handful of visitors will be staying at the Shuey House, while the remaining visitors have rooms on hold for them at Hotel Deca (4507 Brooklyn Avenue NE, Seattle, WA 98105). The tentative housing arrangement is as follows:

The Shuey House

  • Second floor (layout)

    • Master suite bedroom: K. Wilson and S. Miller
    • Bedroom 2: J. Balakrishnan
    • Bedroom 3: C. Hall
    • Bedroom 4: F. Hess
  • Third Floor (layout)

    • Bedroom 1: G. Moehlmann, R. Butenuth
    • Bedroom 2: T. Occhipinti

Hotel Deca

  • G. Boeckle
  • D. Ulmer
  • F. Voloch

Getting to the Shuey House/Hotel Deca from Seattle-Tacoma

Here are some options to get to the Shuey House or Hotel Deca from the airport:

  • A-ABC Transportation offers a flat rate ($30 typically, before tip) for door-to-door car service. I (Salman) have used them multiple times, and they are my preferred transportation to/from the airport if I'm traveling by myself. They are a private car service (though they don't have the nicest fleet of cars) and are less expensive than a cab. Call 206-242-0102 for a reservation.

  • Taxis from the airport cost about $40 (before tip) and can be found by following the signs in the airport.
  • Shuttle Express picks up passengers at the inner curb on the third floor of the Airport Garage. Call 425-981-7000 to make a reservation.

  • There is a new light-rail service from the airport to downtown Seattle, but you will then need to take a taxi to the house/hotel (about 5 miles north of downtown). This is not a good option unless you want to spend time in downtown Seattle.

Getting Around

Both the Shuey House and Hotel Deca are close to the UW campus as well as plenty of restaurants, coffee shops, etc. You will find that you can walk to nearly anything you like from the house or hotel, so a car is probably unnecessary. If you do plan on renting a car, please let me (Salman) know, and I will provide you information on parking, getting to/from the hotel, etc.

Seattle also has a well-connected bus system, which can be used if you want to get out of the University District and explore the rest of the city. Talk to Craig or Salman if you have any questions about riding the buses.

Map

Here's a Google map with the major locations marked.

This is a campus map that shows the location of Padelford (the Math department) and Savery and Thomson Halls (where talks on Monday will be).

Participants

  • Salman Baig (Washington)
  • Jen Balakrishnan (MIT) [5/22-5/28]
  • Rob Beezer (Univ of Puget Sound)
  • Gebhard Boeckle (Universitat Duisburg-Essen) [5/22-5/29]
  • Tom Boothby (Washington)
  • Robert Bradshaw (Washington)
  • Ralf Butenuth (Universitat Duisburg-Essen) [5/21-5/30]
  • Craig Citro (Washington)
  • Alyson Deines (Washington)
  • Mike Hansen
  • Chris Hall (Wyoming)
  • Florian Hess (Technische Universitat Berlin) [5/23-5/28]
  • Jacob Lewis (Washington)
  • Robert Miller (Washington)
  • Steven J Miller (Williams) [5/23-5/27]
  • Gerriet Moehlmann (Technische Universitat Berlin)
  • Thomas Occhipinti (Arizona) [5/23-5/29]
  • Dan Shumow (Washington)
  • William Stein (Washington)
  • Doug Ulmer (Georgia Tech) [5/23-5/26]
  • Felipe Voloch (Texas) [5/23-5/29]
  • Wenhan Wang (Washington)
  • Kevin Wilson (Princeton)

Projects

  • L-functions and the Birch and Swinnerton-Dyer Conjecture over function fields

    • Baig, Balakrishnan, Hall, Occhipinti, Ulmer, Voloch
  • The Mordell-Weil group (descent, computing the algebraic rank, finding generators, torsion)
    • Baig, Balakrishnan, Bradshaw, Hall, Hess, Moehlmann, Ulmer, Voloch
  • Drinfeld modular forms
    • Baig, Boeckle, Butenuth, Hall, Ulmer
  • Statistics over function fields
    • Baig, Conrey, Hall, Miller
  • "Cremona's Tables" for function fields
  • Small Characteristic (2 - 7)
    • Boothby

Schedule

We will have one full day of organized talks, followed by working sessions and status reports the rest of the week. Informal talks are also welcome and will be left to individuals and working groups to organize.

Monday, May 24

9:30am - 9:45am

Welcome

Savery Hall 155

9:45am - 10:45am

Function Fields and Number Fields

Savery Hall 155

D. Ulmer

10:45am - 11:20am

An Introduction to Sage for Number Theorists

Savery Hall 155

C. Citro

11:30am - 1:30pm

Lunch

1:30pm - 2:30pm

Drinfeld Modular Forms and Harmonic Cocycles

Thomson Hall 231

G. Boeckle

2:30pm - 3:30pm

Computing Drinfeld Modular Forms

Thomson Hall 231

R. Butenuth

3:30pm - 4:00pm

Tea

4:30pm - 5:30pm

TBD

Savery Hall 139

C. Hall

5:30pm - 6:30pm

Organizational meeting

Savery Hall 139

Talk Abstracts

Function Fields and Number Fields (Ulmer): I will try to explain some of the analogies between arithmetic in these two domains and also why we can often do more in the function field setting.

An Introduction to Sage for Number Theorists (Citro): I will give a short introduction to Sage, highlighting aspects that are particularly relevant for number theory. You are welcome to come armed with questions, especially of the "can Sage do <insert your favorite thing here>" variety.

Drinfeld Modular Forms and Harmonic Cocycles (Boeckle): In this talk I shall introduce the main concepts needed to understand Drinfeld cusp forms and the combinatorics that allows their computation: The Bruhat-Tits tree, Drinfeld's symmetric space, the cusp forms and harmonic cocycles. I shall state many of the basic theorems including some of Teitelbaum's work relating Drinfeld cusp forms and harmonic cocycles. I will also present a (very incomplete and subjective) list of open questions.

Computing Drinfeld Modular Forms (Butenuth): Drinfeld modular forms can be related to harmonic cochains, which are functions on the edges of the Bruhat-Tits tree fulfilling certain properties. In my talk I will try to explain how to relate Drinfeld modular forms to these objects and how to explicitly compute Hecke operators on them.

Tuesday, May 25

Free day to work or organize talks.

Wednesday, May 26

11:00am - 12:00pm

Status reports

Shuey House

Thursday, May 27

Free day to work or organize talks.

Friday, May 28

11:00am - 12:00pm

Final status reports

Shuey House

Reading List

A reading list can be found here where participants can add items as well.

daysff (last edited 2010-05-28 22:34:44 by AlysonDeines)