{"id":5865,"date":"2013-05-12T13:22:45","date_gmt":"2013-05-12T17:22:45","guid":{"rendered":"http:\/\/www.math.columbia.edu\/~woit\/wordpress\/?p=5865"},"modified":"2013-05-24T10:58:51","modified_gmt":"2013-05-24T14:58:51","slug":"number-theory-news","status":"publish","type":"post","link":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/?p=5865","title":{"rendered":"Number Theory News"},"content":{"rendered":"<p>A special seminar has been scheduled for tomorrow (Monday) at 3pm at Harvard, where Yitang Zhang will present new results on &#8220;Bounded gaps between primes&#8221;.   Evidently he has a proof that there exist infinitely many different pairs of primes p,q with p-q less than <del datetime=\"2013-05-13T01:23:10+00:00\">17,000,000<\/del> 70,000,000.<\/p>\n<p>Whether this proof is valid should become clear soon, but there still seems to be nothing happening in terms of others understanding Mochizuki&#8217;s claimed proof of the abc conjecture.   For an excellent article describing the situation, see <a href=\"http:\/\/projectwordsworth.com\/the-paradox-of-the-proof\/\">here.<\/a><\/p>\n<p><strong>Update<\/strong>: The &#8220;bounded gaps&#8221; talk is now on the Harvard seminar listing with abstract<\/p>\n<blockquote><p>The speaker proves that there are infinite number of pairs of primes whose difference is bounded by 70 million.<\/p><\/blockquote>\n<p>For more on the significance of this, see <a href=\"https:\/\/plus.google.com\/103404025783539237119\/posts\/T5vXKd1N819\">this Google+ posting<\/a> by David Roberts.<\/p>\n<p>I haven&#8217;t seen a paper, but rumor is that one exists and two referees at a major journal have found it to be correct.<\/p>\n<p><strong>Update<\/strong>:  The most recent version of Mochizuki&#8217;s lecture notes for a general talk about his work is <a href=\"http:\/\/www.kurims.kyoto-u.ac.jp\/~motizuki\/Invitation%20to%20Inter-universal%20Teichmuller%20Theory%20(Expanded%20Version).pdf\">here<\/a>.  As mentioned in the Caroline Chen article, Go Yamashita has been talking to Mochizuki. Yamashita has now posted a short document <a href=\"http:\/\/www.kurims.kyoto-u.ac.jp\/~motizuki\/FAQ%20on%20Inter-Universality.pdf\">FAQ on &#8220;Inter-Universality&#8221;<\/a> and promises &#8220;For the details of the theory, please wait for the survey I will write in the near future.&#8221; He also notes:<\/p>\n<blockquote><p>I refuse all of the interviews from the mass media until the situation around the papers will be stabilised.<\/p><\/blockquote>\n<p><strong>Update<\/strong>: In a weird coincidence, another major analytic number theory result is out today, a <a href=\"http:\/\/arxiv.org\/abs\/1305.2897\">proof by Harald Helfgott<\/a> of the ternary Goldbach conjecture.  This says that every odd integer greater than 5 is the sum of three primes.  The result had been known for all integers above e<sup>3100<\/sup>, and Helfgott&#8217;s proof reduces that bound to 10<sup>30<\/sup> which is small enough so that all smaller values can be checked by computer.<\/p>\n<p><strong>Update<\/strong>: <em>Nature<\/em> has a <a href=\"http:\/\/www.nature.com\/news\/first-proof-that-infinitely-many-prime-numbers-come-in-pairs-1.12989\">story<\/a> up about the Zhang result, including details of one of the <em>Annals<\/em> referee reports (I gather the paper will be published there).<\/p>\n<p><strong>Update<\/strong>:  For some background to the methods being used by Zhang, see <a href=\"http:\/\/www.ams.org\/journals\/bull\/2007-44-01\/S0273-0979-06-01142-6\/S0273-0979-06-01142-6.pdf\">here<\/a>.  For Terry Tao on Zhang, see <a href=\"https:\/\/plus.google.com\/u\/0\/114134834346472219368\/posts\/XESxA9bL5um\">here<\/a>, on Helfgott, <a href=\"https:\/\/plus.google.com\/u\/0\/114134834346472219368\/posts\/8qpSYNZFbzC\">here<\/a>.<\/p>\n<p><strong><br \/>\nUpdate<\/strong>: New Scientist has a story about the Zhang result <a href=\"http:\/\/www.newscientist.com\/article\/dn23535-proof-that-an-infinite-number-of-primes-are-paired.html\">here<\/a>, with quotes from Iwaniec, who has reviewed the paper, finding no error.<\/p>\n<p><strong>Update<\/strong>:  A report from the talk at Harvard is <a href=\"http:\/\/golem.ph.utexas.edu\/category\/2013\/05\/bounded_gaps_between_primes.html\">here<\/a>.<\/p>\n<p><strong>Update<\/strong>:  There&#8217;s more about the Zhang proof at <a href=\"http:\/\/blogs.ethz.ch\/kowalski\/2013\/05\/21\/bounded-gaps-between-primes\/\">Emmanuel Kowalski&#8217;s blog<\/a>, including a <a href=\"http:\/\/annals.math.princeton.edu\/wp-content\/uploads\/YitangZhang.pdf\">link to the Zhang paper<\/a>.<\/p>\n<p><strong>Update<\/strong>: Nice <a href=\"http:\/\/www.slate.com\/articles\/health_and_science\/do_the_math\/2013\/05\/yitang_zhang_twin_primes_conjecture_a_huge_discovery_about_prime_numbers.html\">piece about this in Slate<\/a> from Jordan Ellenberg.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A special seminar has been scheduled for tomorrow (Monday) at 3pm at Harvard, where Yitang Zhang will present new results on &#8220;Bounded gaps between primes&#8221;. Evidently he has a proof that there exist infinitely many different pairs of primes p,q &hellip; <a href=\"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/?p=5865\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5865","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/5865","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5865"}],"version-history":[{"count":17,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/5865\/revisions"}],"predecessor-version":[{"id":5934,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/5865\/revisions\/5934"}],"wp:attachment":[{"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5865"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5865"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.math.columbia.edu\/~woit\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}