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Recent news [2012. 2. 13] ILAS 1873 Send News for IMAGE Issue 48 Deadline: April 2, 2012.IMAGE seeks to publish all news of interest to the linear algebra community. Photos are always welcome, as well as suggestions for improving the newsletter. Send your items directly to the appropriate person: Problems and Solutions to Bojan Kuzma (bojan.kuzma@upr.si) History of Linear Algebra to Peter Semrl (peter.semrl@fmf.uni-lj.si) Book Reviews to Oskar Baksalary (baxx@amu.edu.pl) Linear Algebra Education news to Steve Leon (sleon@umassd.edu) Announcements and Reports of Conferences, Workshops and Journals to Minerva Catral (catralm@xavier.edu) Interviews of Senior Linear Algebraists to Carlos Fonseca (cmf@mat.uc.pt) Advertisements to Amy Wehe (awehe@fitchburgstate.edu) All other news to Kevin N. Vander Meulen (kvanderm@redeemer.ca). This includes: Honors and awards, funding opportunities, job openings. Brief references to articles appearing elsewhere, of interest to the linear algebra community. Feature articles such as surveys , interesting applications, new developments. Announcements of new books, software, websites. Transitions (new positions, obituaries). Letters to the Editor. Small items like clever proofs, historical tidbits, cartoons, etc. Suggestions for IMAGE Deadline for submission is April 2, 2012 Issue 48 will is scheduled to be published online June 1, 2012. A special thank you to Jane Day for her excellent work as Editor-in-Chief of IMAGE for the past 5 ½ years!
[2012. 2. 6] ILAS 1872 Electronic Journal of Linear Algebra Dear ILAS community,Below are is a list of titles for the January 2012 ELA papers. These appear in two volumes (Volume 23 a regular volume, and Volume 24 a special issue devoted to the 2011 Directions in Matrix Theory Conference). The papers are available at http://www.math.technion.ac.il/iic/ela. Enjoy reading these papers, Bryan Shader Editor-in-chief The Electronic Journal of Linear Algebra -------------------------- VOLUME 23 1. M. Catral, C. Erickson, L. Hogben, D.D. Olesky and P. van den Driessche, Sign patterns that allow strong eventual nonnegativity, pp. 1-10. 2. Yonge Tian, On an equality and four inequalities for generalized inverses of Hermitian matrices, pp. 11-42. 3. Yaokun Wu and Shizhen Zhao, Incidence matrix and cover matrix of nested interval orders, pp. 43-65. 4. Shi-Cai Gong, The characteristic set with respect to the k-maximal vectors of a tree, pp. 66-78. 5. J. Ekstrand, C. Erickson, D. Hay, L. Hogben and J. Roat, Note on positive semidefinite maximum nullity and positive semidefinite zero forcing number of partial 2-trees pp. 79-87. 6. Le Cong Loi, On multipoint boundary value problems for linear singular difference equations pp. 88-114. 7. Ali Armandnejad and Zahra Gashool, Strong linear preserverse of G-tridiagonal majorization on R^N* pp. 115-121. 8. Lihua You and Shuyong Yi, The characterization of primitive symmetric loop-free signed digraphs with the maximum base, pp. 122-136. 9. Hong-hai Li, Li Su and Hui-xian Sun, On bipartite graphs which attain minimum rank among bipartite graphs with given diameter pp. 137-150. 10. Luz M. DeAlba, Jason Grout, In-Jae Kim, Steve Kirkland, Judith J. McDonald and Amy Yielding, Minimum rank of powers of trees pp. 151-163. VOLUME 24 1. Carlos M. Fonseca, Shmuel Friedland, Oskar Maria Baksalary, Preface to Directions in Matrix Theory Conference pp. 1-2 2. W. H. Haemers, M.J.P. Peeters, The maximum order of reduced square (0,1)-matrices with a given rank pp. 3-6. 3. Irina Mazilu, Dan A. Mazilu and H. Thomas Williams, Applications of tridiagonal matrices in non-equilibrium statistical physics pp. 7-17. 4. Shmuel Friedland, Results and open problems in matchings in regular graphs pp. 18-33.
[2012. 2. 6] ILAS 1871 CRM Conference on Applications of Graph Spectra in Computer Science Second Announcement
[2012. 1. 31] ILAS 1870 ILAS Website Update This email is to clarify the status of the ILAS International Centre website. As of a year ago, the mirror websites in Israel, Germany, Portugal, and US stopped functioning. And we have not been able to coordinate the repair.The only up-to-date ILAS site is Regina, Canada at: http://www.ilasic.math.uregina.ca/iic/ Please update your bookmarks/favorites and only use the Regina site until further notice. Yours sincerely, Sarah Carnochan Naqvi ILAS-IC and ILAS-Net Manager
[2012. 1. 31] ILAS 1IWASEP Napa Valley, June, 2012 IWASEP - Accurate Solution of Eigenvalue ProblemsNapa Valley, June, 2012 -- First Announcement Intl. Workshop on Accurate Solution of Eigenvalue Problems IX (IWASEP IX) Napa Valley, California, June 4 - 7, 2012 Abstract Deadline: April 1, 2012. Registration Deadline: April 1, 2012. Organizers Jesse Barlow (Chair), The Pennsylvania State University, SIAM representative Zlatko Drmac, University of Zagreb Volker Mehrmann, Technical University of Berlin Ivan Slapnicar, University of Split Kresimir Veselic, Fernuniversitaet Hagen Local Organizing Committee Jim Demmel, UC Berkeley Esmond G. NG, Lawrence Berkeley National Laboratory Oded Schwartz, UC Berkeley The purpose of this workshop is to bring together experts on accuracy issues in the numerical solution of eigenvalue problems for four days of research presentations and discussions. This is the ninth such workshop. The most recent was held in Berlin, Germany, June 28 - July 1, 2010. This conference will be held in the Embassy Suites in Napa Valley, CA. In addition, the organizers welcome submitted presentations and posters that are consistent with the theme of the meeting. A prize will be given for the best poster. For more information: www.eecs.berkeley.edu/~odedsc/IWASEP9
[2012. 1. 30] ILAS 1868 ILAS Election Results The ballots have now been counted for the recent ILAS elections. Here are the
[2012.1. 30] ILAS 1867 Hans Schneider Prize The Hans Schneider Prize is for research, contributions, and achievements at the highest level of Linear Algebra. The ILAS Executive Board is pleased to announce that the 2012 Hans Schneider Prize in Linear Algebra has been awarded to Thomas J. Laffey, of University College Dublin, Ireland. The award is made in recognition of Laffey's lifetime profound contributions to many areas of Linear Algebra, including integral matrices, simultaneous similarity, linear preservers, and, in particular, his breakthrough results on the inverse eigenvalue problem for nonnegative matrices. The following are just a couple of examples of Laffey's achievements. He proves (in a joint paper with Reams, 1994) that every square matrix over the integers with trace zero is a commutator of two integral matrices, thus providing an analogue to the classical result over fields. The nonnegative inverse eigenvalue problem (NIEP) asks for a characterisation of those lists of n complex numbers (possibly with repetitions) that comprise the spectra (with multiplicities) of n-by-n entrywise nonnegative matrices. Laffey (in a joint paper with Smigoc, 2006) completely solves the NIEP if the lists are selfconjugate and consist of one positive real number and and n-1 complex numbers with nonpositive real parts. Further, in a recent paper, Laffey brings new insight to the NIEP by giving an ingenious, elementary and constructive proof of the Boyle - Handelman theorem in an important special case. Laffey is well known in the mathematical community outside of Linear Algebra. He is heavily involved with the Irish team for the International Mathematical Olympiad. Laffey has been a member of the National Committee for Mathematics and represented Ireland at the International Congress of Mathematicians. A member of the Royal Irish Academy since 1981, he served as its Vice President for the period 1990 - 1992. Laffey's encyclopedic knowledge and enthusiasm for mathematics of all kinds have made him an invaluable source of information and advice for his colleagues and students alike. The Hans Schneider Prize will be presented to Professor Laffey at the next ILAS meeting in Providence USA, 3-7 June, 2013, and Laffey will also be invited to give a lecture at that meeting. The ILAS Executive would like to express its sincere thanks to the members of the 2012 Hans Schneider Prize Committee: Shmuel Friedland, Leiba Rodman (chair), Peter Semrl, Bryan Shader, and Valeria Simoncini. An outstanding group of people were nominated for the Prize, and the Prize Committee performed its duties with appropriate thoroughness and careful consideration. The Prize Committee's efforts are most appreciated.
[2012. 1. 11] ILAS 1866 2011 ILAS Election voting closes January 22, 2012 Each member was e-mailed an individual username and password and instructions for electronic voting on November 18, and voting was opened. If you have not yet voted, you may vote any time until January 22, 2012.
[2012.1. 10] ILAS 1864 2012 Shanghai Conference on Algebraic Combinatorics |
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