SIGMA is a refereed purely electronic arXiv overlay journal with a lot of mirrors around the world. In spite of being open access, the journal does not charge authors for publication. SIGMA is a non-profit, volunteer-run project operated by the following people (all from the Institute of Mathematics of NAS of Ukraine):
Editor: Anatoly Nikitin
Executive Assistant: Vira Pobyzh
Editorial BoardMark Ablowitz (University of Colorado, USA)
Mark Adler (Brandeis University, USA)
Andrei Agrachev (SISSA, Italy)
Paolo Aschieri (E. Fermi Centre, Rome and University Piemonte Orientale, Alessandria, Italy)
Jinho Baik (University of Michigan, USA)
Glenn Barnich (Université Libre de Bruxelles, Belgium)
Martin Bojowald (Pennsylvania State University, USA)
Richard Borcherds (University of California, Berkeley, USA)
Peter Clarkson (University of Kent at Canterbury, UK)
Ivan Corwin (Columbia University, USA)
Eric D'Hoker (University of California, Los Angeles, USA)
Robbert Dijkgraaf (University of Amsterdam, The Netherlands and Institute for Advanced Study, Princeton, USA)
Jacques Distler (University of Texas, Austin, USA)
Charles Dunkl (University of Virginia, USA)
Michael Eastwood (Australian National University, Canberra, Australia)
Bertrand Eynard (Université Paris Saclay, France)
László Fehér (Research Institute for Particle and Nuclear Physics, Budapest and University of Szeged, Hungary)
Sergey Fomin (University of Michigan, USA)
Allan Fordy (University of Leeds, UK)
Jürgen Fuchs (Karlstad University, Sweden)
Rod Gover (University of Auckland, New Zealand)
Razvan Gurau (Ecole Polytechnique, France)
Darryl D. Holm (Imperial College London, UK)
Johannes Huebschmann (Université des Sciences et Technologies de Lille, France)
Alexander Its (Indiana University - Purdue University Indianapolis, USA)
Niky Kamran (McGill University, Montreal, Canada)
Rinat Kashaev (University of Geneva, Switzerland)
Boris Khesin (University of Toronto, Canada)
Anatol Kirillov (Kyoto University, Japan)
Nikolai Kitanine (Université de Bourgogne, France)
Erik Koelink (Radboud University Nijmegen, The Netherlands)
Tom Koornwinder (University of Amsterdam, The Netherlands)
Yvette Kosmann-Schwarzbach (École Polytechnique, France)
Dirk Kreimer (Humboldt-Universität zu Berlin, Germany)
Igor Krichever (Columbia University, USA)
Arno Kuijlaars (Katholieke Universiteit Leuven, Belgium)
Giovanni Landi (University of Trieste, Italy)
Joseph Landsberg (Texas A&M University, USA)
Claude LeBrun (Stony Brook University, USA)
Eugene Lerman (University of Illinois at Urbana-Champaign, USA)
Roberto Longo (University of Rome Tor Vergata, Italy)
Jerzy Lukierski (University of Wroclaw, Poland)
Kirill C.H. Mackenzie (University of Sheffield, UK)
Lionel Mason (University of Oxford, UK)
Alexander Mikhailov (University of Leeds, UK)
Peter D. Miller (University of Michigan, USA)
Willard Miller, Jr. (University of Minnesota, Minneapolis, USA)
Richard Montgomery (The University of California, Santa Cruz, USA)
Robert Moody (University of Victoria, Canada)
Andrei Moroianu (Université Paris-Sud, France)
Karl-Hermann Neeb (University of Erlangen-Nürnberg, Germany)
Mikhail Olshanetsky (Institute of Theoretical and Experimental Physics, Moscow, Russia)
Grigori Olshanski (Institute for Information Transmission Problems, Moscow, Russia)
Peter Olver (University of Minnesota, Minneapolis, USA)
Eric Opdam (University of Amsterdam, The Netherlands)
Jiri Patera (Centre de Recherches Mathematiques, Montreal, Canada)
Orlando Ragnisco (Universita di Roma 3, Italy)
Pierre Ramond (University of Florida, USA)
Tudor Ratiu (Ecole Polytechnique Fédérale de Lausanne, Switzerland)
Eric M. Rains (California Institute of Technology, USA)
Jonathan Rosenberg (University of Maryland, USA)
Carlo Rovelli (Centre de Physique Theorique de Luminy, Marseille, France)
Simon Ruijsenaars (University of Leeds, UK)
Hubert Saleur (Université Paris Saclay, France and University of Southern California, USA)
Carlos Simpson (Université de Nice - Sophia Antipolis, France)
Andrei Smilga (Universite de Nantes, France)
Alexei Starobinsky (Landau Institute of Theoretical Physics, Moscow, Russia)
Daniel Sternheimer (Universite de Bourgogne, Dijon, France and Rikkyo University, Tokyo, Japan)
Jasper Stokman (University of Amsterdam, The Netherlands)
Ross Street (Macquarie University, Australia)
Yuri Suris (Technische Universität Berlin, Germany)
Richard Szabo (Heriot-Watt University, Edinburgh, UK)
Kanehisa Takasaki (Kinki University, Japan)
Arkady Tseytlin (Imperial College London, UK and Lebedev Institute, Moscow, Russia)
Walter Van Assche (University of Leuven, Belgium)
Alexander Varchenko (University of North Carolina at Chapel Hill, USA)
Erik Verlinde (University of Amsterdam, The Netherlands)
Alexander Veselov (Loughborough University, UK)
Alan Weinstein (University of California, Berkeley, USA)
Pavel Winternitz (Centre de Recherches Mathematiques, Montreal, Canada)
Christopher Woodward (Rutgers University, USA)
Eric Zaslow (Northwestern University, USA)
Authors who wish to have their manuscript handled by a specific member of the Editorial Board should notify the Editorial Office (about this) at the time of submission.
How to Submit an Article
Please submit the paper to arXiv.org and send the arXiv number to email@example.com or (in exceptional cases only) you can send the zipped paper in TeX/LaTeX format directly to firstname.lastname@example.org (please include the PDF or PostScript file as well) with an explanation why you prefer not to put the paper to arXiv.
Your article can be prepared for submission in any TeX-style of your choice. However, we would like to point out that after the paper is accepted for publication you should prepare the paper using the SIGMA style (the LaTeX style file for can be downloaded from here).
Please indicate in your submission if your paper is intended for a specific special issue of SIGMA.
If the receipt of your paper is not acknowledged within two working days, please resend it to our alternative e-mail address email@example.com
The length of an article is not limited.
We are accepting only two submissions per author, per year.
The papers are considered for publication if they have not been published previously and are not submitted for publication elsewhere.
SIGMA is an open access journal. However, in spite of being open access, the journal charges no publication fees (i.e., it is no-fee open-access journal).
Paper Evaluation Criteria
SIGMA has two article styles: regular article and review article.
Manuscripts submitted as regular articles are expected to be
Review articles are welcome too.
Review articles are critical evaluations of material that has already
been published. By organizing, integrating and evaluating previously
published material, the author of a review article considers the
progress of current research toward clarifying a problem. In a sense,
a review article is a tutorial in that the author
Refereeing Papers for SIGMA
All the papers submitted to SIGMA are sent for refereeing to at least two experts in the specific areas for evaluation according to the above criteria. These referees can either review the papers themselves or recommend alternative referee(s).
To ensure comprehensive refereeing and to avoid conflicts of interest we choose the referees bearing in mind the following:
We strive to ensure an adequate refereeing and selection process. At the moment around 60 percent of the submitted papers are rejected. Most of the accepted papers have been amended according to the referees' recommendations.
We do our best to keep track of and rule out any possibility for conflicts of interest in the selection of the referees. Please inform us if such conflicts arise.
Please contact the Editors firstname.lastname@example.org for further questions about the editorial process and our refereeing policy.
Special thematic issues in SIGMA
SIGMA welcomes proposals from potential Guest Editors for special thematic issues of the journal.
We would like to stress that all papers in the special issues should be original: they should not be simply reviews of authors' own work that is already published elsewhere. Acceptance of the paper is subject to the results of the peer review process according to regular refereeing rules of SIGMA (see the items above).
If you have any ideas for a special issue of SIGMA, please contact us email@example.com for further consideration.
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SIGMA is arXiv overlay
This means that, in addition to the freely accessible pdfs and tex-sources on the journal's website and its mirrors, all published articles in the journal are contributed also to the arXiv. In addition, the SIGMA web site has hyperlinks to the arXiv copies.
You can also search or browse SIGMA articles within the arXiv, for example by following this link. As a consequence of the overlay arrangement, SIGMA shares the commitment of arXiv to remain permanently and freely available on the Internet.
If a paper accepted for publication is already on the arXiv, we suggest the author choose one of the following two ways:
If the author wants to make changes to an already published article (i.e. make a corrigendum), we publish a new version of the article on the journal's website (please see an example) and replace the article in the arXiv. In the case of minor changes (when referees are not needed), we do it quite quickly, in a few days.
Indexing & Abstracting
SIGMA is covered by the following indexing and abstracting databases:
The authors retain the copyright for their papers published in SIGMA under the terms of the Creative Commons Attribution-ShareAlike License .
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