{"id":12981,"date":"2025-06-21T13:58:32","date_gmt":"2025-06-21T17:58:32","guid":{"rendered":"https:\/\/blogs.mathworks.com\/cleve\/?p=12981"},"modified":"2025-06-21T13:58:32","modified_gmt":"2025-06-21T17:58:32","slug":"trip-report-householder-xxii","status":"publish","type":"post","link":"https:\/\/blogs.mathworks.com\/cleve\/2025\/06\/21\/trip-report-householder-xxii\/","title":{"rendered":"Trip Report, Householder XXII"},"content":{"rendered":"<div class=\"content\"><!--introduction-->\n<p>The twenty-second Householder Symposium on Numerical Linear Algebra was held June 8 - June 13 at Cornell. The local organizers were Anil Damle, Alex Townsend and David Bindel. Anil served as host and cheerleader.<\/p>\n<p>\n<a href=\"https:\/\/blogs.mathworks.com\/cleve\/2025\/06\/12\/a-million-dollar-matrix\/\">My talk<\/a> was Wednesday morning. Here is the complete <a href=\"https:\/\/householder-symposium.github.io\/schedule.html\" target=\"_blank\">schedule<\/a>.<\/p>\n<!--\/introduction-->\n<h3>Contents<\/h3>\n<div>\n<ul>\n<li>\n<a href=\"#f402423b-cb81-4e90-93ab-76eebe7e3bff\">Group Selfie<\/a>\n<\/li>\n<li>\n<a href=\"#900d99fc-07f7-4a8c-a630-0e6c7f347a8c\">Poster Session<\/a>\n<\/li>\n<li>\n<a href=\"#ef80a124-71d5-4978-82d7-cd69347d59c9\">Quantum Computing<\/a>\n<\/li>\n<li>\n<a href=\"#650df2ca-6b59-4e9d-b3b9-f02a4cf2bb10\">Householder Prizes<\/a>\n<\/li>\n<li>\n<a href=\"#af59e9bd-360d-4e8c-9096-dd5f227784ea\">Excursion<\/a>\n<\/li>\n<li>\n<a href=\"#928e34bb-faf3-4382-960a-704094ecbfe4\">Gr&uuml;ezi<\/a>\n<\/li>\n<li>\n<a href=\"#f6f32e88-3fc4-4287-93d4-17b877519b2b\">Thanks<\/a>\n<\/li>\n<\/ul>\n<\/div>\n<h4>Group Selfie<a name=\"f402423b-cb81-4e90-93ab-76eebe7e3bff\"><\/a>\n<\/h4>\n<p>Anil and Erik De Sturle orchestrated this group selfie. Can you find me? Do you recognize anyone else?<\/p>\n<p>\n<img decoding=\"async\" vspace=\"5\" hspace=\"5\" src=\"https:\/\/blogs.mathworks.com\/cleve\/files\/HXXII_selfie.png\" alt=\"\"> <\/p>\n<h4>Poster Session<a name=\"900d99fc-07f7-4a8c-a630-0e6c7f347a8c\"><\/a>\n<\/h4>\n<p>The Tuesday evening poster session was a high point of the meeting. Over 50 posters were set up in the Statler Terrace. We mingled, drank beer, ate ice cream and discussed the posters with their authors. I was impressed by the number of young people doing exciting work.<\/p>\n<p>\n<img decoding=\"async\" vspace=\"5\" hspace=\"5\" src=\"https:\/\/blogs.mathworks.com\/cleve\/files\/Posters.png\" alt=\"\"> <\/p>\n<h4>Quantum Computing<a name=\"ef80a124-71d5-4978-82d7-cd69347d59c9\"><\/a>\n<\/h4>\n<p>A poster by Christine Tobler from MathWorks described the MATLAB Support Package for Quantum Computing. One model of a hypothetical quantum computer involves a state vector of probabilities and multiplication by unitary matrices.<\/p>\n<div>\n<ul>\n<li>\n<a href=\"https:\/\/www.mathworks.com\/content\/dam\/mathworks\/handout\/quantum-computing-cheat-sheet.pdf\">https:\/\/www.mathworks.com\/content\/dam\/mathworks\/handout\/quantum-computing-cheat-sheet.pdf<\/a>.<\/li>\n<\/ul>\n<\/div>\n<p>\n<img decoding=\"async\" vspace=\"5\" hspace=\"5\" src=\"https:\/\/blogs.mathworks.com\/cleve\/files\/Christine.png\" alt=\"\"> <\/p>\n<p>A second poster by Sophia Keip, visiting Lawrence Berkeley National Laboratory from Fern Universit&auml;t in Hagen, Germany, and a plenary talk by Roel Van Beeumen from LBL, described QCLAB, another MATLAB quantum toolbox<\/p>\n<div>\n<ul>\n<li>\n<a href=\"https:\/\/github.com\/QuantumComputingLab\/qclab\" target=\"_blank\">https:\/\/github.com\/QuantumComputingLab\/qclab<\/a>.<\/li>\n<\/ul>\n<\/div>\n<p>\n<img decoding=\"async\" vspace=\"5\" hspace=\"5\" src=\"https:\/\/blogs.mathworks.com\/cleve\/files\/QCLAB_poster.jpg\" alt=\"\"> <\/p>\n<h4>Householder Prizes<a name=\"650df2ca-6b59-4e9d-b3b9-f02a4cf2bb10\"><\/a>\n<\/h4>\n<p>The Alston S. Householder Prize is awarded to the author of the best dissertation in numerical linear algebra submitted over the previous three years. This time there were two prize-winning submissions described in a special plenary session on Thursday evening.<\/p>\n<p>Alice Cortinovis from the University of Pisa won the prize for a dissertation supervised by Daniel Kressner from the Swiss Federal Institute of Technology in Lausanne.<\/p>\n<p>\n<img decoding=\"async\" vspace=\"5\" hspace=\"5\" src=\"https:\/\/blogs.mathworks.com\/cleve\/files\/Alice.png\" alt=\"\"> <\/p>\n<p>Jorge Garza-Vargas from Caltech and Jess Banks from U. C. Berkeley shared a second prize for a pair of dissertations supervised by Nikhil Srivastava from Berkeley. Jorge gave the talk.<\/p>\n<p>\n<img decoding=\"async\" vspace=\"5\" hspace=\"5\" src=\"https:\/\/blogs.mathworks.com\/cleve\/files\/Jorge.png\" alt=\"\"> <\/p>\n<h4>Excursion<a name=\"af59e9bd-360d-4e8c-9096-dd5f227784ea\"><\/a>\n<\/h4>\n<p>A tradition at the seminars is the Wednesday afternoon excursion. This year we had the choice of a serious hike, an easy walk, a visit to a nearby winery, or a nap at the hotel. The walk was on the Gorge trail in Taughannock Falls State Park and was fabulous.<\/p>\n<p>\n<img decoding=\"async\" vspace=\"5\" hspace=\"5\" src=\"https:\/\/blogs.mathworks.com\/cleve\/files\/Taughannock.png\" alt=\"\"> <\/p>\n<h4>Gr&uuml;ezi<a name=\"928e34bb-faf3-4382-960a-704094ecbfe4\"><\/a>\n<\/h4>\n<p>Gr&uuml;ezi is Swiss German for Hello. Anyone planning to attend the Householder seminar in 2028 should learn how to pronounce Gr&uuml;ezi. The seminar will be in Pontresina, Switzerland. Bart Vandereycken made the announcement.<\/p>\n<p>\n<img decoding=\"async\" vspace=\"5\" hspace=\"5\" src=\"https:\/\/blogs.mathworks.com\/cleve\/files\/Pontresina.png\" alt=\"\"> <\/p>\n<p>Pontresina was also the site for the Householder seminar in 1996. The Wednesday excursion at that meeting was a hike down the Morteratsch glacier at Diavolezza.<\/p>\n<p>\n<img decoding=\"async\" vspace=\"5\" hspace=\"5\" src=\"https:\/\/blogs.mathworks.com\/cleve\/files\/Glacier.png\" alt=\"\"> <\/p>\n<h4>Thanks<a name=\"f6f32e88-3fc4-4287-93d4-17b877519b2b\"><\/a>\n<\/h4>\n<p>Thanks to Erik De Sturle for several of these photos.<\/p>\n<script language=\"JavaScript\"> <!-- \n    function grabCode_3fc25520ada249c38d629067b3d5dc17() {\n        \/\/ Remember the title so we can use it in the new page\n        title = document.title;\n\n        \/\/ Break up these strings so that their presence\n        \/\/ in the Javascript doesn't mess up the search for\n        \/\/ the MATLAB code.\n        t1='3fc25520ada249c38d629067b3d5dc17 ' + '##### ' + 'SOURCE BEGIN' + ' #####';\n        t2='##### ' + 'SOURCE END' + ' #####' + ' 3fc25520ada249c38d629067b3d5dc17';\n    \n        b=document.getElementsByTagName('body')[0];\n        i1=b.innerHTML.indexOf(t1)+t1.length;\n        i2=b.innerHTML.indexOf(t2);\n \n        code_string = b.innerHTML.substring(i1, i2);\n        code_string = code_string.replace(\/REPLACE_WITH_DASH_DASH\/g,'--');\n\n        \/\/ Use \/x3C\/g instead of the less-than character to avoid errors \n        \/\/ in the XML parser.\n        \/\/ Use '\\x26#60;' instead of '<' so that the XML parser\n        \/\/ doesn't go ahead and substitute the less-than character. \n        code_string = code_string.replace(\/\\x3C\/g, '\\x26#60;');\n\n        copyright = 'Copyright 2025 The MathWorks, Inc.';\n\n        w = window.open();\n        d = w.document;\n        d.write('<pre>\\n');\n        d.write(code_string);\n\n        \/\/ Add copyright line at the bottom if specified.\n        if (copyright.length > 0) {\n            d.writeln('');\n            d.writeln('%%');\n            if (copyright.length > 0) {\n                d.writeln('% _' + copyright + '_');\n            }\n        }\n\n        d.write('<\/pre>\\n');\n\n        d.title = title + ' (MATLAB code)';\n        d.close();\n    }   \n     --> <\/script>\n<p style=\"text-align: right; font-size: xx-small; font-weight:lighter;   font-style: italic; color: gray\">\n<br>\n<a href=\"javascript:grabCode_3fc25520ada249c38d629067b3d5dc17()\"><span style=\"font-size: x-small;        font-style: italic;\">Get \n      the MATLAB code <noscript>(requires JavaScript)<\/noscript>\n<\/span><\/a>\n<br>\n<br>\n      Published with MATLAB&reg; R2024b<br>\n<\/p>\n<\/div>\n<!--\n3fc25520ada249c38d629067b3d5dc17 ##### SOURCE BEGIN #####\n%% Trip Report, Householder XXII\n% The twenty-second\n% Householder Symposium on Numerical Linear Algebra was \n% held June 8 - June 13 at Cornell.\n% The local organizers were Anil Damle,\n% Alex Townsend and David Bindel.  Anil served as host and\n% cheerleader.  \n%\n% <https:\/\/blogs.mathworks.com\/cleve\/2025\/06\/12\/a-million-dollar-matrix\/\n% My talk> was Wednesday morning.\n% Here is the complete\n% <https:\/\/householder-symposium.github.io\/schedule.html schedule>.\n\n%% Group Selfie\n% Anil and Erik De Sturle orchestrated this group selfie.\n% Can you find me?  Do you recognize anyone else?\n%\n% <<HXXII_selfie.png>>\n%\n\n%% Poster Session\n% The Tuesday evening poster session was a high point of the meeting.\n% Over 50 posters were set up in the Statler Terrace.\n% We mingled, drank beer, ate ice cream and\n% discussed the posters with their authors.\n% I was impressed by the number of young people doing exciting work.\n%\n% <<Posters.png>>\n\n%% Quantum Computing\n% A poster by Christine Tobler from MathWorks described the \n% MATLAB Support Package for Quantum Computing.\n% One model of a hypothetical quantum computer involves a\n% state vector of probabilities and multiplication by unitary matrices.\n%\n% * <https:\/\/www.mathworks.com\/content\/dam\/mathworks\/handout\/quantum-computing-cheat-sheet.pdf>.\n%\n% <<Christine.png>>\n%\n% A second poster by Sophia Keip, visiting\n% Lawrence Berkeley National Laboratory from Fern Universit\u00e4t in\n% Hagen, Germany, and a plenary talk by \n% Roel Van Beeumen from LBL, \n% described QCLAB, another MATLAB quantum toolbox\n%\n% * <https:\/\/github.com\/QuantumComputingLab\/qclab>.\n%\n% <<QCLAB_poster.jpg>>\n\n%% Householder Prizes\n% The Alston S. Householder Prize is awarded to the author of\n% the best dissertation in numerical linear algebra \n% submitted over the previous three years.\n% This time there were two prize-winning submissions\n% described in a special plenary session on Thursday evening.\n% \n% Alice Cortinovis from the University of Pisa\n% won the prize for a dissertation\n% supervised by Daniel Kressner from the\n% Swiss Federal Institute of Technology in Lausanne.\n%\n% <<Alice.png>>\n%\n% Jorge Garza-Vargas from Caltech and \n% Jess Banks from U. C. Berkeley shared\n% a second prize for a pair of dissertations\n% supervised by Nikhil Srivastava from Berkeley.\n% Jorge gave the talk.\n%\n% <<Jorge.png>>\n%\n\n%% Excursion\n% A tradition at the seminars is the Wednesday afternoon excursion.\n% This year we had the choice of a serious hike, an easy walk,\n% a visit to a nearby winery, or a nap at the hotel.  The walk was on\n% the Gorge trail in Taughannock Falls State Park and was fabulous.\n%\n% <<Taughannock.png>>\n\n%% Gr\u00fcezi\n% Gr\u00fcezi is Swiss German for Hello.  Anyone planning to attend\n% the Householder seminar in 2028 should learn how to pronounce\n% Gr\u00fcezi.\n% The seminar will be in Pontresina, Switzerland.\n% Bart Vandereycken made the announcement.\n%\n% <<Pontresina.png>>\n%\n% Pontresina was also the site for the Householder seminar in 1996.\n% The Wednesday excursion at that meeting was a hike down the Morteratsch\n% glacier at Diavolezza.\n% \n% <<Glacier.png>>\n%\n\n%% Thanks\n% Thanks to Erik De Sturle for several of these photos.\n\n##### SOURCE END ##### 3fc25520ada249c38d629067b3d5dc17\n-->\n","protected":false},"excerpt":{"rendered":"<div class=\"overview-image\"><img src=\"https:\/\/blogs.mathworks.com\/cleve\/files\/Taughannock.png\" class=\"img-responsive attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" decoding=\"async\" loading=\"lazy\" \/><\/div><!--introduction-->\n<p>The twenty-second Householder Symposium on Numerical Linear Algebra was held June 8 - June 13 at Cornell. The local organizers were Anil Damle, Alex Townsend and David Bindel. Anil served as host and cheerleader.... <a class=\"read-more\" href=\"https:\/\/blogs.mathworks.com\/cleve\/2025\/06\/21\/trip-report-householder-xxii\/\">read more >><\/a><\/p>","protected":false},"author":78,"featured_media":13011,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[13,5,4,6,16,8,10,1],"tags":[],"_links":{"self":[{"href":"https:\/\/blogs.mathworks.com\/cleve\/wp-json\/wp\/v2\/posts\/12981"}],"collection":[{"href":"https:\/\/blogs.mathworks.com\/cleve\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.mathworks.com\/cleve\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/cleve\/wp-json\/wp\/v2\/users\/78"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/cleve\/wp-json\/wp\/v2\/comments?post=12981"}],"version-history":[{"count":1,"href":"https:\/\/blogs.mathworks.com\/cleve\/wp-json\/wp\/v2\/posts\/12981\/revisions"}],"predecessor-version":[{"id":12984,"href":"https:\/\/blogs.mathworks.com\/cleve\/wp-json\/wp\/v2\/posts\/12981\/revisions\/12984"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/cleve\/wp-json\/wp\/v2\/media\/13011"}],"wp:attachment":[{"href":"https:\/\/blogs.mathworks.com\/cleve\/wp-json\/wp\/v2\/media?parent=12981"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.mathworks.com\/cleve\/wp-json\/wp\/v2\/categories?post=12981"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.mathworks.com\/cleve\/wp-json\/wp\/v2\/tags?post=12981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}