Editors

Editor in-Chief

MARJORIE SENECHAL

Department of Mathematics, Smith College,

Northampton, MA 01063 USA

Associate Editor

GIZEM KARAALI

Department of Mathematics, Pomona College

Claremont, CA 91711 USA

e-mail: gizem.karaali@pomona.edu

Associate Editor

SERGEI TABACHNIKOV

Department of Mathematics, Pennsylvania State University

University Park, PA 16802 USA

e-mail: tabachni@math.psu.edu

Associate Editor

PHILIP ORDING

Department of Mathematics, Sarah Lawrence College

Bronxville, NY 10708 USA

email: philip.ording@gmail.com

Managing Editor

DAVID KRAMER

Plainfield, MA 01070 USA

email: mi.managing.editor@gmail.com

Mathematical Tourist

LOUISE ANTOINETTE N. DE LAS PENAS

Department of Mathematics

Ateneo de Manila University, Loyola Heights, Quezon City

Philippines

email: mdelaspenas@ateneo.edu

Reviews

OSMO PEKONEN

Agora Centre, P.O. Box 35,

FI-40014 University of Jyväskylä, Finland

e-mail: pekonen@mit.jyu.fi

Mathematical Communities

MARJORIE SENECHAL

Department of Mathematics, Smith College,

Northampton, MA 01063 USA

Mathematical Gems and Curiosities

SERGEI TABACHNIKOV

Department of Mathematics, Pennsylvania State University

University Park, PA 16802, USA

email: tabachni@math.psu.edu

Mathematically Bent

COLIN ADAMS

Department of Mathematics, Williams College

Williamstown, MA 01267, USA

e-mail: Colin.C.Adams@williams.edu

Years Ago

JEMMA LORENAT

Department of Mathematics

Pitzer College

1050 N. Mills Ave.

Claremont, CA 91711

email: jemma.lorenat@pitzer.edu

Stamp Corner

ROBIN WILSON

e-mail: r.j.wilson@open.ac.uk

Photography Editor

ROBERT MOODY

e-mail: rvmoody@mac.com

Correspondents

SHELDON AXLER, San Francisco State University, USA; DAVID BÉKOLLÉ, University of Ngaoundere, Cameroon; RAJENDRA BHATIA, Indian Statistical Institute, India; PIERRE CARTIER, École Normale Supérieure, France; KRZYSZTOF CIESIELSKI, Jagiellonian University, Poland; FLORIN DIACU, University of Victoria, Canada; NIKOLAI DOLBILIN, Steklov Institute, Russia; JOHN EWING, Math for America (MfA), USA; ISTVÁN HARGITTAI, Budapest University of Technology and Economics, Hungary; NICHOLAS HORTON, Amherst College, USA; JEAN-MICHEL KANTOR, Université de Paris VII, France; LINDA KEEN, CUNY, USA; MARIA KLAWE, Harvey Mudd College, USA; NEAL KOBLITZ, University of Washington, USA; GOVIND MENON, Brown University, USA; ALFREDO OCTAVIO, IVIC, Venezuela; KEN ONO, University of Virginia, Charlottesville, USA; JÁNOS PACH, ETH Zürich, Switzerland; JACOB PALIS, IMPA, Brazil; KAREN PARSHALL, University of Virginia, USA; JOSEPH O'ROURKE, Smith College, USA; STEPHEN SMALE, City University of Hong Kong, China; MICHAEL TSFASMAN, CNRS, IUM, and IITP, Russia; A. M. VERSHIK, POMI, Russia; STEVEN H. WEINTRAUB, Lehigh University, USA; ASIA IVIĆ WEISS, York University, Canada; SMILKA ZDRAVKOVSKA, USA; GÜNTER ZIEGLER, Freie Universität Berlin, Germany; CHUANMING ZONG, Peking University, People's Republic of China.