Electronic Transactions on Numerical Analysis (ETNA) is an electronic journal for the publication of significant new developments in numerical analysis and scientific computing. Papers of the highest quality that deal with the analysis of algorithms for the solution of continuous models and numerical linear algebra are appropriate for ETNA, as are papers of similar quality that discuss implementation and performance of such algorithms. New algorithms for current or new computer architectures are appropriate provided that they are numerically sound. However, the focus of the publication should be on the algorithm rather than on the architecture. The journal is published by the Kent State University Library in conjunction with the Institute of Computational Mathematics at Kent State University, and in cooperation with the Johann Radon Institute for Computational and Applied Mathematics of the Austrian Academy of Sciences (RICAM). Reviews of all ETNA papers appear in Mathematical Reviews and Zentralblatt für Mathematik. Reference information for ETNA papers also appears in the expanded Science Citation Index. ETNA is registered with the Library of Congress and has ISSN 1068-9613.


Manuscripts will be posted as soon as they are accepted in a directory which is publicly accessible through the Internet. On a regular basis, the titles of these manuscripts will be e-mailed to registered departments and individuals and posted on public bulletin boards such as NA-digest. All manuscripts are in PostScript and PDF format. They can be accessed via the World Wide Web at http://etna.math.kent.edu or one of its mirror sites. FTP access is no longer available.
The first issue of ETNA appeared on September 1, 1993.

The complete set of papers published in ETNA through 2006 (Volumes 1-25) are available on a single CD-ROM (Details).

Inquiries for further information about ETNA should be e-mailed to etna@math.kent.edu.

Submissions, acceptance and refereeing:

Authors will normally submit manuscripts for publication via e-mail, and they will be required to prepare their manuscripts in LaTeX using the siamltex style files.
See the "Submissions" page for general information on submitting a manuscript and the "Future Special Vols." page for additional information on planned Special Volumes.

All manuscripts will be refereed. As soon as a manuscript has been accepted for publication in ETNA, it will be entered into the ETNA data base. There are no annual page limitations, and, therefore, we are in a position to publish accepted manuscripts faster than many other journals.


ETNA has been able to operate and offer free access to its papers since 1993, mostly due to generous support of Kent State University. To supplement this support, and to be able to continue this service to the scientific community, contributions are welcomed (Details).

Founding editor:
Richard S. Varga Kent State University (Editor-in-chief 1993-2008)
Ronny Ramlau Johannes Kepler Universität Linz
Lothar Reichel Kent State University
Daniel B. Szyld Temple University
Managing editors:
James Baglama University of Rhode Island
David Bindel Cornell University
Thomas DeLillo Wichita State University
Stefan Kindermann Johannes Kepler Universität Linz
Bruno Lang Bergische Universität Wuppertal
Jing Li Kent State University
Bernard Philippe INRIA/IRISA Rennes
Giuseppe Rodriguez Università di Cagliari
Editorial board:
Yves Achdou Université Paris 7
Volodymyr V. Andriyevskyy Kent State University
Michele Benzi Emory University
Albrecht Böttcher Technische Universität Chemnitz
Susanne C. Brenner Louisiana State University
Claude Brezinski Université des Sciences et Technologies de Lille
Kevin Burrage University of Oxford
Froilán M. Dopico Universidad Carlos III de Madrid
Vladimir L. Druskin Schlumberger-Doll Research
Jocelyne Erhel INRIA Rennes
Roland W. Freund University of California, Davis
Michael P. Friedlander University of British Columbia
Andreas Frommer Bergische Universität Wuppertal
Martin J. Gander Université de Genève
William B. Gragg Naval Postgraduate School
Martin H. Gutknecht Eidgenössische Technische Hochschule Zürich
Michiel E. Hochstenbach Technische Universiteit Eindhoven
Axel Klawonn Universität Duisburg-Essen
Daniel Kressner Eidgenössische Technische Hochschule Zürich
Ulrich Langer Johann Radon Institute for Computational and Applied Mathematics of the Austrian Academy of Sciences
Richard B. Lehoucq Sandia National Laboratories
Thomas A. Manteuffel University of Colorado
Francisco J. Marcellán Universidad Carlos III de Madrid
Reinhard Nabben Technische Universität Berlin
Robert J. Plemmons Wake Forest University
Wolfgang Ring Karl-Franzens-Universität Graz
Arden Ruttan Kent State University
Yousef Saad University of Minnesota
Hassane Sadok Université du Littoral Côte d'Opale
Fiorella Sgallari Università di Bologna
Valeria Simoncini Università di Bologna
Frank Stenger University of Utah
Zdenek Strakos Charles University Prague
Gerd Teschke Hochschule Neubrandenburg
Stefan Vandewalle Katholieke Universiteit Leuven
Paul M. Van Dooren Université Catholique de Louvain
Andrew J. Wathen Oxford University
Olof B. Widlund New York University