{"id":1291,"date":"2009-10-01T02:30:37","date_gmt":"2009-10-01T00:30:37","guid":{"rendered":"https:\/\/wpethzprd.ethz.ch\/kowalski\/?p=1291"},"modified":"2024-02-20T13:40:54","modified_gmt":"2024-02-20T11:40:54","slug":"blogging-by-hand","status":"publish","type":"post","link":"https:\/\/blogs.ethz.ch\/kowalski\/2009\/10\/01\/blogging-by-hand\/","title":{"rendered":"Blogging by hand"},"content":{"rendered":"<p>Every time I meet Peter Sarnak, he mentions his deep chagrin at being unable to blog, a sad state of affair which he attributes to his inability to type (straight quote). However, as he points out, he does the next best thing: he writes letters to various correspondents to explain a variety of topics, and then puts them on the web (together with some other papers, notes for lectures, and a few papers). And all this is well-worth looking at for inspiration and information. And since the address doesn&#8217;t seem to be as well-known as it could, <a href=\"http:\/\/www.math.princeton.edu\/sarnak\">here is the link<\/a>. <\/p>\n<p>Highlights of these are (to my mind at least):<\/p>\n<p>* The <a href=\"http:\/\/www.math.princeton.edu\/sarnak\/Arithmetic%20Quantum%20Chaos.pdf\">Schur lectures on Arithmetic Quantum Chaos<\/a> (1993); they have been published, but are not so easy to find. There has been a lot of recent progress (which I <a href=\"https:\/\/blogs.ethz.ch\/kowalski\/2009\/01\/29\/quantum-chaos-in-bordeaux\/\">discussed briefly here<\/a>; Sarnak also has a short letter on this topic, and is readying a more complete version as he prepares a lecture next week at IAS).<\/p>\n<p>* The <a href=\"http:\/\/www.math.princeton.edu\/sarnak\/AppolonianPackings.pdf\">letter to Lagarias<\/a> on integral Appolonian packings, a very beautiful topic where spectral theory of infinite covolume discrete subgroups meets number theory and geometry.<\/p>\n<p>* The <a href=\"http:\/\/www.math.princeton.edu\/sarnak\/FieldNotesCurrent.pdf\">Notes on the Generalized Ramanujan conjectures<\/a>, a great educational read for people who (like me) have been mostly comfortable with classical (<i>GL(2)<\/i>) modular forms, but want to see and learn what happens in higher rank.<\/p>\n<p>* The <a href=\"http:\/\/www.math.princeton.edu\/sarnak\/Sarnak_Letter_to_Morawetz.pdf\">letter to Morawetz<\/a> on the supremum norms of eigenfunctions; again, it&#8217;s a topic where new phenomena occur when one moves beyond the classical case of hyperbolic surfaces (which still contains many mysteries, of course).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Every time I meet Peter Sarnak, he mentions his deep chagrin at being unable to blog, a sad state of affair which he attributes to his inability to type (straight quote). However, as he points out, he does the next best thing: he writes letters to various correspondents to explain a variety of topics, and &hellip; <a href=\"https:\/\/blogs.ethz.ch\/kowalski\/2009\/10\/01\/blogging-by-hand\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Blogging by hand<\/span><\/a><\/p>\n","protected":false},"author":625,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-1291","post","type-post","status-publish","format-standard","hentry","category-blogroll"],"_links":{"self":[{"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/posts\/1291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/users\/625"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/comments?post=1291"}],"version-history":[{"count":0,"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/posts\/1291\/revisions"}],"wp:attachment":[{"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/media?parent=1291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/categories?post=1291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.ethz.ch\/kowalski\/wp-json\/wp\/v2\/tags?post=1291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}