August 16-25, 2011 Workshop on Arithmetic and Geometry of K3 surfaces and Calabi-Yau threefolds to be held at the University of Toronto and the Fields Institute August 16 talks are at the Bahen Centre (Map to Bahen) August 17-25 talks are at the Fields Institute (Map to Fields)
Organizers: Charles F. Doran, University of Alberta, and PIMS Shigeyuki Kondõ, Nagoya University Radu Laza, Stony Brook University James D. Lewis, University of Alberta Matthias Schütt, Leibniz University Hannover Noriko Yui, Queen’s University (corresponding organizer)	This workshop is supported by: The Fields Institute NSF (1100007 plus individual grants) JSPS Grant-in-Aid (S), No. 22224001 DFG GRK 1463

Program	Audio and slides of talks		Abstracts
Participants	Map to Fields	Accommodation Resources	Toronto Resources

The workshop will start with a three-day warm-up session aimed at graduate students and postdoctoral fellows, succeeded by a one week research conference with Sunday off.

Key participants include: I. Dolgachev (Micigan), N.D. Elkies (Harvard), K. Hulek (Hannover), S. Kudla (Toronto), S. Mukai (RIMS, Kyoto), V.V. Nikulin (Liverpool)..

For additional information on the workshop please see page 6 of the Fields Notes Winter 2011 edition.

Introductory (Pedagogical) Lectures

1. Arithmetic of K3 surfaces and Calabi–Yau threefolds (Schutt, Yui)
2. Transcendental theory on K3 surfaces and Calabi–Yau threefolds (Kondo, Lewis)
3. Calabi–Yau families and differential equations, and moduli spaces (Doran, Laza)

Workshop

The workshop will concentrate on topics that have either seen great progress recently or show a high potential for future inventions. The major topics include:

1. Families and degenerations of Calabi-Yau varieties – moduli theoretic and arithmetic view point.
2. Modularity: Galois representations of Calabi-Yau varieties and their connections to automorphic forms, in particular to classical, Hilbert, and Siegel modular forms.
3. Calabi-Yau varieties of CM-type and with special automorphisms; especially K3 surfaces with symplectic and non-symplectic auto- morphisms.
4. Algebraic cycles and motives: divisors, CM cycles, motives arising from K3 surfaces and Calabi–Yau threefolds.
5. Variations of mixed Hodge structures, periods, and Picard-Fuchs differential equations.

Proceedings

We plan to publish a Proceedings of the workshop from the Fields Communication Series.
Please see the following link for instructions on preparing your submission http://www.fields.utoronto.ca/publications/author_notes/author-guide.pdf

Invited Speakers:

M. Artebani (Concepcion)
X. Chen (Alberta)
A. Clingher (St. Louis)
S. Cynk (Krakow)
I. Dolgachev (Michigan)
N. D. Elkies (Harvard)
K. Hulek (Hannover)
M. Kerr (St. Louis)
J.H. Keum (KIAS)
R. Kloosterman (Berlin)
S. Kudla (Toronto)
A. Kumar (MIT)
C. Liedtke (Stanford)
H. Movasati (IMPA)
S. Mukai (RIMS)
K. O'Grady (Rome)
V. V. Nikulin (Liverpool)
K. Oguiso (Osaka)
H. Ohashi (Nagoya)
G. Pearlstein (Michigan State)
J.-C. Rohde (Hamburg)
A. Sarti (Poitiers)
C. Schoen (Duke)
S. Schroeer (Duesseldorf)
D. van Straten (Mainz)
U. Whitcher (Harvey Mudd)
K.-I. Yoshikawa (Kyoto)
J.-D. Yu (Taipei)

Application for Student and Postdoctoral Fellows travel support
Deadline to apply is March 17, late applications accepted if funding available until May 1

Schedule:

A condensed version of the program is also available here.

Tuesday, August 16 (BA 1170)
8:30-8:50	Morning Coffee & On-site Registration
8:50-9:00	Introduction
9:00-10:00	J. Lewis (University of Alberta, Canada) Lectures in Transcendental Algebraic Geometry: Algebraic Cycles with a Special Emphasis on Calabi-Yau Varieties
10:00-10:30	Coffee Break
10:30-11:30	C. Doran (University of Alberta, Canada) Periods, Picard-Fuchs Equations, and Calabi-Yau Moduli
11:30-12:30	N. Yui (Queen's University, Canada) Modularities of Calabi--Yau varieties: 2011 and beyond
12:30-14:30	Lunch Break
14:30-15:30	M. Schuett (University of Hannover, Germany) Arithmetic of K3 surfaces
15:30-16:00	Coffee Break
16:00-17:00	R. Laza (Stony Brook University, USA) Degenerations of K3 surfaces and Calabi-Yau threefolds
17:00-18:00	Study Session
18:00-20:00	Dinner Break
20:00-22:00	Study Session
Wednesday, August 17 (Fields Room 230)
8:30-9:00	Morning Coffee
9:00-10:00	J. Lewis (University of Alberta, Canada) Lectures in Transcendental Algebraic Geometry: Algebraic Cycles with a Special Emphasis on Calabi-Yau Varieties
10:00-10:30	Coffee Break
10:30-11:30	C. Doran (University of Alberta, Canada) Periods, Picard-Fuchs Equations, and Calabi-Yau Moduli
11:30-12:30	S. Kondo (Nagoya University, Japan) K3 and Enriques surfaces
12:30-14:30	Lunch Break
14:30-15:30	M. Schuett (University of Hannover, Germany) Arithmetic of K3 surfaces
15:30-16:00	Coffee Break
16:00-17:00	R. Laza (Stony Brook University, USA) Degenerations of K3 surfaces and Calabi-Yau threefolds
17:00-18:00	Study Session
18:00-20:00	Dinner Break
20:00-22:00	Study Session
Thursday, August 18 (Fields Room 230)
8:30-9:00	Morning Coffee
9:00-10:00	J. Lewis (University of Alberta, Canada) Lectures in Transcendental Algebraic Geometry: Algebraic Cycles with a Special Emphasis on Calabi-Yau Varieties
10:00-10:30	Coffee Break
10:30-11:30	C. Doran (University of Alberta, Canada) Periods, Picard-Fuchs Equations, and Calabi-Yau Moduli
11:30-12:30	S. Kondo (Nagoya University, Japan) K3 and Enriques surfaces
12:30-14:30	Lunch Break
14:30-15:30	N. Yui (Queen's University, Canada) Modularities of Calabi--Yau varieties: 2011 and beyond
15:30-16:00	Coffee Break
16:00-17:00	K.-I. Yoshikawa (Kyoto University, Japan) On the value of Borcherds $\Phi$-function
17:00-18:00	Study Session
18:00-20:00	Dinner Break
20:00-22:00	Study Session
Friday, August 19 (Fields, Room 230)
8:30-9:00	Morning Coffee
9:00-10:00	N. Elkies (Harvard University, USA) Even lattices and elliptic fibrations of K3 surfaces, I
10:00-10:30	Coffee Break
10:30-11:30	I. Dolgachev (University of Michigan, USA) Quartic surfaces and Cremona transformations
11:30-12:30	H. Ohashi (Nagoya University, Japan) On automorphisms of Enriques surfaces
12:30-14:30	Lunch Break
14:30-15:30	J.W Hoffman (Louisiana State University, USA) Picard groups of Siegel modular threefolds and theta lifting.
15:30-16:00	Coffee Break
16:00-17:00	C. Liedtke (Stanford University, USA) Rational Curves on K3 Surfaces
17:00-18:00	Reception
18:00-20:00	Dinner Break
20:00-22:00	Informal Sessions
Saturday, August 20 (Fields, Room 230)
8:30-9:00	Morning Coffee
9:00-10:00	S. Mukai (RIMS, Japan) Enriques surfaces and root systems
10:00-10:30	Coffee Break
10:30-11:30	V. Nikulin (University of Liverpool, UK, and Steklov Mathematical Institute, Moscow, Russia) Elliptic fibrations on K3 surfaces
11:30-12:30	G. Pearlstein (Michigan State University, USA) Jumps in the Archimedean Height
12:30-14:30	Lunch Break
14:30-15:30	M. Kerr (Washington University in St. Louis, USA) Higher Chow cycles on families of K3 surfaces
15:30-16:00	Coffee Break
16:00-17:00	N. Elkies (Harvard University, USA) Even lattices and elliptic fibrations of K3 surfaces, II
17:15-18:00	M.J. Bertin (Université Paris 6, France) Elliptic fibrations on the modular surface associated to $\Gamma_1(8)$ =
18:00-20:00	Dinner Break
20:00-22:00	Informal Sessions
Sunday, August 21
August 21 is a free day to explore Toronto and nearby attractions.
Monday, August 22 (Fields, Room 230)
8:30-9:00	Morning Coffee
9:00-10:00	K. Hulek (University of Hannover, Germany) Abelian varieties with a singular odd $2$-torsion point on the theta divisor
10:00-10:30	Coffee Break
10:30-11:30	K. O'Grady (Sapienza Universita' di Roma) Moduli and periods of double EPW-sextics
11:30-12:30	J.-C. Rohde (Universitaet Hamburg, Germany) Shimura varieties and Calabi-Yau manifolds versus Mirror Symmetry
12:30-14:30	Lunch Break
14:30-15:30	H. Movasati (IMPA, Brazil) Eisenstein type series for mirror quintic Calabi-Yau varieties
15:30-16:00	Coffee Break
16:00-17:00	S. Cynk (Jagiellonian University, Poland) Arithmetically significant Calabi-Yau threefolds
17:15-18:00	Y. Goto (Hokkaido University of Education Hakodate, Japan On K3 surfaces with involution
18:00-20:00	Dinner Break
20:00-22:00	Informal Sessions
Tuesday, August 23 (Fields, Room 230)
8:30-9:00	Morning Coffee
9:00-10:00	D. van Straten (Universitaet Mainz, Germany) CY-period expansions
10:00-10:30	Coffee Break
10:30-11:30	S. Schroeer (University of Duesseldorf, Germany) Enriques manifolds
11:30-12:30	X. Chen (University of Alberta, Canada) Rational self-maps of K3 surfaces and Calabi-Yau manifolds
12:30-14:30	Lunch Break
14:30-15:30	A. Kumar (MIT, USA) Elliptic fibrations on Kummer surfaces
15:30-16:00	Coffee Break
16:00-17:00	R. Kloosterman (Humboldt Universitaet zu Berlin, Germany) Mordell-Weil ranks, highest degree syzygies and Alexander polynomials
17:15-18:00	L. Halle (University of Oslo, Norway) Motivic zeta functions for degenerations of Calabi-Yau varieties
18:00-20:00	Dinner Break
20:00-22:00	Informal Sessions
Wednesday, August 24 (Fields, Room 230)
8:30-9:00	Morning Coffee
9:00-10:00	A. Sarti (University of Poitiers, France) The BHCR-mirror symmetry for K3 surfaces
10:00-10:30	Coffee Break
10:30-11:30	C. Schoen (Duke University, USA) Desingularized fiber products of elliptic surfaces
11:30-12:30	J.-D. Yu (National Taiwan University, Taiwan) On Dwork congruences
12:30-14:30	Lunch Break
14:30-15:30	J. Keum (KIAS, Korea) Finite groups acting on K3 surfaces in positive characteristic
15:30-16:00	Coffee Break
16:00-17:00	A. Thompson (Oxford University) Degeneration of K3 surfaces of degree two
17:15-18:00	S. Sijsling (IMPA, Brazil) Calculating arithmetic Picard-Fuchs equations
18:00-20:00	Dinner Break
20:00-22:00	Informal Sessions
Thursday, August 25 (Fields, Room 230)
8:30-9:00	Morning Coffee
9:00-10:00	U. Whitcher (Harvey Mudd College, USA) Picard-Fuchs equations for lattice-polarized K3 surfaces
10:00-10:30	Coffee Break
10:30-11:30	A. Clingher (Washington University in St. Louis, USA) On K3 Surfaces of High Picard Rank
11:30-12:30	C. Schnell (IPMU, Japan) Derived equivalences and the fundamental group
12:30-14:30	Lunch Break
14:30-15:30	S. Kudla (University of Toronto) Modular generating functions for arithmetic cycles: a survey
15:30-16:00	Coffee Break
16:00-17:00	K. Oguiso (Osaka University, Japan) Group of automorphisms of Wehler type on Calabi-Yau manifolds and compact hyperkaehler manifolds
17:00-18:00	Contributed Talks and other activities
18:00-20:00	Dinner Break
20:00-22:00	Informal Sessions

Confirmed Participants

Full Name	University/Affiliation	Arrival Date	Departure Date
Ahmadi, Ruhi (Seyedruhallah)	University of Regina	15-Aug-11	25-Aug-11
Bertin, Marie José	Université Paris 6	15-Aug-11	25-Aug-11
Caviedes Castro, Alexander	University of Toronto	16-Aug-11	25-Aug-11
Chung, Min In		16-Aug-11	25-Aug-11
Clingher, Adrian	University of Missouri - St. Louis	15-Aug-11	25-Aug-11
Colombo, Elisabetta	Universita' di Milano	16-Aug-11	25-Aug-11
Doran, Charles	University of Alberta	16-Aug-11	25-Aug-11
Dumitrescu, Olivia	University of California, Davis	16-Aug-11	25-Aug-11
El basraoui, Abdelkrim	CRM-CICMA	16-Aug-11	25-Aug-11
Elizondo, E. Javier	UNAM	15-Aug-11	25-Aug-11
Goto, Yasuhiro	Hokkaido University of Education	16-Aug-11	25-Aug-11
Grieve, Nathan	Queen's University	16-Aug-11	25-Aug-11
Gualtieri, Marco	University of Toronto	16-Aug-11	25-Aug-11
Gulbrandsen, Gulbrandsen	Stord/Haugesund University College	15-Aug-11	25-Aug-11
Halic, Mihai	King Fahd University of Petroleum and Minerals	15-Aug-11	25-Aug-11
Hashimoto, Kenji	Korea Institute for Advanced Study	15-Aug-11	26-Aug-11
Hoffman, Jerome	Louisiana State University	16-Aug-11	25-Aug-11
Ito, Hiroyuki	Tokyo University of Science	15-Aug-11	26-Aug-11
Jensen, David	SUNY Stony Brook	16-Aug-11	25-Aug-11
Kelly, Tyler	University of Pennsylvania	15-Aug-11	26-Aug-11
Kerr, Matthew	Washington University in St. Louis	16-Aug-11	21-Aug-11
Kiming, Ian	University of Copenhagen	16-Aug-11	25-Aug-11
Kumar, Abhinav	Massachusetts Institute of Technology	16-Aug-11	25-Aug-11
Kuwata, Masato	Chuo University	16-Aug-11	25-Aug-11
Lang, William	Brigham Young University	13-Aug-11	20-Aug-11
Laza, Radu	Stony Brook University	16-Aug-11	25-Aug-11
Lecacheux, Odile	Universite de Paris 6	15-Aug-11	25-Aug-11
Lee, ChongGyu	University of Illinois at Chicago	15-Aug-11	23-Aug-11
Lee, Hwayoung	KIAS	16-Aug-11	25-Aug-11
Lee, Jae Hyouk	Ewha Womans University	16-Aug-11	25-Aug-11
Lewis, Jacob	Universität Wien	16-Aug-11	25-Aug-11
Lewis, James D.	University of Alberta	16-Aug-11	25-Aug-11
Liedtke, Christian	Stanford University	19-Aug-11	26-Aug-11
Lyons, Christopher	University of Michigan	16-Aug-11	25-Aug-11
Matias, Rodrigo	Concordia University	15-Aug-11	25-Aug-11
McKay, John	Concordia University	16-Aug-11	25-Aug-11
Miura, Makoto	University of Tokyo	16-Aug-11	26-Aug-11
Moraru, Ruxandra	University of Waterloo	22-Aug-11	25-Aug-11
Pérez-Buendía, Rogelio	Concordia University	16-Aug-11	25-Aug-11
Rams, Slawomir	Jagiellonian University	16-Aug-11	25-Aug-11
Saito, Sachiko	Hokkaido University of Education, Asahikawa Campus	16-Aug-11	25-Aug-11
Sakovics, Dmitrijs	Universitry of Edinburgh	16-Aug-11	24-Aug-11
Schnell, Christian	University of Illinois	15-Aug-11	26-Aug-11
Schoen, Chad	Duke University	18-Aug-11	26-Aug-11
Schütt, Matthias	Leibniz Universitaet Hannover	16-Aug-11	25-Aug-11
Smirnov, Ilia	Queen's University	15-Aug-11	25-Aug-11
Song, Ruifang	Harvard University	16-Aug-11	25-Aug-11
Takayama, Yukihide	Ritsumeikan University	16-Aug-11	25-Aug-11
Talamanca, Valerio	Universita' Roma Tre	16-Aug-11	25-Aug-11
Tuncer, Serhan	University of Alberta	16-Aug-11	25-Aug-11
Wen, Jun	Stony Brook University	16-Aug-11	25-Aug-11
Whitcher, Ursula	Harvey Mudd College	15-Aug-11	25-Aug-11
Yang, Sen	Louisiana State University	16-Aug-11	25-Aug-11
Yui, Noriko	Queen's University	16-Aug-11	25-Aug-11
Zarhin, Yuri	Pennsylvania State University	15-Aug-11	20-Aug-11
Zhang, Letao	Rice University	16-Aug-11	25-Aug-11
Zhang, Ying	University of Pennsylvania	16-Aug-11	25-Aug-11
Zhang, Yongsheng	Stony Brook University	15-Aug-11	25-Aug-11
Zhang, Zheng	Stony Brook University	16-Aug-11	25-Aug-11
Cattaneo, Andrea	Università degli Studi di Milano	15-Aug-11	25-Aug-11
Chen, Xi	University of Alberta	16-Aug-11	24-Aug-11
Cynk, Slawomir	Jagiellonian University	16-Aug-11	25-Aug-11
Dolgachev, Igor	University of Michigan	16-Aug-11	25-Aug-11
Dubey, Umesh Kumar Vanktesh	The Institute of Mathematical Sciences	15-Aug-11	26-Aug-11
Elkies, Noam D.	Harvard University	16-Aug-11	25-Aug-11
Filippini, Sara Angela	Università degli Studi dell'Insubria	15-Aug-11	26-Aug-11
Gährs, Swantje	Leibniz Universität Hannover	16-Aug-11	25-Aug-11
Halle, Lars Halvard	University of Oslo	15-Aug-11	26-Aug-11
Harder, Andrew	Queen's University	16-Aug-11	25-Aug-11
Hayama, Tatsuki	National Taiwan University	15-Aug-11	26-Aug-11
Hulek, Klaus	Leibniz Universitaet Hannover	16-Aug-11	25-Aug-11
Hwang, DongSeon	Korea Institute for Advanced Study (KIAS)	16-Aug-11	25-Aug-11
Ito, Hiroki	Nagoya University	16-Aug-11	25-Aug-11
Jang, Junmyeong	Korea Institute for Advanced Study	16-Aug-11	25-Aug-11
Kanazawa, Atsushi	University of British Columbia	16-Aug-11	25-Aug-11
Keum, JongHae	KIAS	18-Aug-11	25-Aug-11
Kloosterman, Remke	Humboldt Universitaet zu Berlin	15-Aug-11	25-Aug-11
Kondo, Shigeyuki	Nagoya University	16-Aug-11	25-Aug-11
Kooistra, Remkes	The King's University College	16-Aug-11	25-Aug-11
Kudla, Stephen	University of Toronto	16-Aug-11	25-Aug-11
Mase, Makiko	Tokyo Metropolitan University	16-Aug-11	25-Aug-11
Mongardi, Giovanni	Universita' degli studi "RomaTRE"	16-Aug-11	25-Aug-11
Movasati, Hossein	IMPA	16-Aug-11	25-Aug-11
Mukai, Shigeru	Kyoto University	15-Aug-11	22-Aug-11
Nikulin, Viacheslav	University of Liverpool	15-Aug-11	26-Aug-11
Novoseltsev, Andrey	University of Alberta	14-Aug-11	26-Aug-11
O'Grady, Kieran	Sapienza Universita' di Roma	18-Aug-11	24-Aug-11
Oguiso, Keiji	Osaka University	15-Aug-11	26-Aug-11
Ohashi, Hisanori	Nagoya University	16-Aug-11	25-Aug-11
Okawa, Shinnosuke	University of Tokyo	14-Aug-11	26-Aug-11
Pasten, Hector	Queen's University	15-Aug-11	25-Aug-11
Pearlstein, Gregory	Michigan State University	16-Aug-11	25-Aug-11
Rohde, Jan Christian	Universitaet Hamburg	16-Aug-11	25-Aug-11
Saber, Hicham	University of Ottawa	16-Aug-11	25-Aug-11
Sano, Taro	University of Warwick	16-Aug-11	25-Aug-11
Sarti, Alessandra	University of Poitiers	16-Aug-11	25-Aug-11
Schroeer, Stefan	University Duesseldorf	16-Aug-11	25-Aug-11
Schulze, Frithjof	Leibniz Universitaet Hannover	16-Aug-11	25-Aug-11
Sijsling, Jeroen	IMPA	16-Aug-11	25-Aug-11
Solis, Pablo	University of California, Berkeley	16-Aug-11	25-Aug-11
Taki, Shingo	Tokyo Denki University	16-Aug-11	25-Aug-11
Tanimoto, Sho	Courant Institute of Mathematical Sciences, New York University	15-Aug-11	26-Aug-11
Thompson, Alan	University of Oxford	16-Aug-11	25-Aug-11
Ufer, Dominik	University of Ulm	16-Aug-11	25-Aug-11
van den Dries, Bart	Utrecht University	15-Aug-11	25-Aug-11
van Straten, Duco	Universitey of Johannes Gutenberg	16-Aug-11	25-Aug-11
Wandel, Walte	Leibniz Universität Hannover	16-Aug-11	25-Aug-11
Whang, Junho Peter	Queen's University	16-Aug-11	25-Aug-11
Yoshikawa, Ken-Ichi	Kyoto University	16-Aug-11	25-Aug-11
Yu, Jeng-Daw	National Taiwan University	13-Aug-11	26-Aug-11

SCIENTIFIC PROGRAMS AND ACTIVITIES

August 16-25, 2011 Workshop on Arithmetic and Geometry of K3 surfaces and Calabi-Yau threefolds