HTTP/2 301 server: nginx date: Tue, 30 Dec 2025 17:34:07 GMT content-type: text/html content-length: 162 location: https://computationalcombinatorics.wordpress.com/feed/ x-ac: 2.bom _dca MISS alt-svc: h3=":443"; ma=86400 strict-transport-security: max-age=31536000 server-timing: a8c-cdn, dc;desc=bom, cache;desc=MISS;dur=234.0 HTTP/2 200 server: nginx date: Tue, 30 Dec 2025 17:34:08 GMT content-type: application/rss+xml; charset=UTF-8 vary: Accept-Encoding x-hacker: Want root? Visit join.a8c.com/hacker and mention this header. host-header: WordPress.com vary: accept, content-type last-modified: Mon, 15 Dec 2025 17:46:39 GMT x-nc: HIT dca 56 content-encoding: gzip x-ac: 4.bom _dca BYPASS alt-svc: h3=":443"; ma=86400 strict-transport-security: max-age=31536000 server-timing: a8c-cdn, dc;desc=bom, cache;desc=BYPASS;dur=231.0 https://computationalcombinatorics.wordpress.com Thu, 26 Jul 2018 09:29:14 +0000 en hourly 1 https://wordpress.com/ 38750579 https://s0.wp.com/i/buttonw-com.png https://computationalcombinatorics.wordpress.com https://computationalcombinatorics.wordpress.com/2018/07/26/announcing-the-small-numbers-project/ https://computationalcombinatorics.wordpress.com/2018/07/26/announcing-the-small-numbers-project/#respond Thu, 26 Jul 2018 09:29:14 +0000 https://computationalcombinatorics.wordpress.com/?p=770 https://computationalcombinatorics.wordpress.com/2018/07/26/announcing-the-small-numbers-project/feed/ 0 770 derrickstolee https://computationalcombinatorics.wordpress.com/2015/12/07/so-long/ https://computationalcombinatorics.wordpress.com/2015/12/07/so-long/#comments Mon, 07 Dec 2015 07:59:00 +0000 https://computationalcombinatorics.wordpress.com/?p=696 https://computationalcombinatorics.wordpress.com/2015/12/07/so-long/feed/ 4 696 derrickstolee https://computationalcombinatorics.wordpress.com/2015/09/18/the-erdos-discrepancy-problem/ https://computationalcombinatorics.wordpress.com/2015/09/18/the-erdos-discrepancy-problem/#respond Fri, 18 Sep 2015 20:00:01 +0000 https://computationalcombinatorics.wordpress.com/?p=607 https://computationalcombinatorics.wordpress.com/2015/09/18/the-erdos-discrepancy-problem/feed/ 0 607 derrickstolee kel https://computationalcombinatorics.wordpress.com/2015/07/28/hypohamiltonian-planar-graphs/ https://computationalcombinatorics.wordpress.com/2015/07/28/hypohamiltonian-planar-graphs/#respond Tue, 28 Jul 2015 15:14:22 +0000 https://computationalcombinatorics.wordpress.com/?p=683 Hypohamiltonian planar cubic graphs with girth five. We briefly discuss his results and his search process.]]> https://computationalcombinatorics.wordpress.com/2015/07/28/hypohamiltonian-planar-graphs/feed/ 0 683 42.034722 -93.620000 42.034722 -93.620000 derrickstolee The three smallest examples of hypohamiltonian planar cubic graphs of girth 5. The numbers give the face lengths for faces other than 5-faces. Figures by B.D. McKay. https://computationalcombinatorics.wordpress.com/2015/04/21/happy-birthday-joan-hutchinson/ https://computationalcombinatorics.wordpress.com/2015/04/21/happy-birthday-joan-hutchinson/#respond Tue, 21 Apr 2015 15:25:26 +0000 https://computationalcombinatorics.wordpress.com/?p=675 https://computationalcombinatorics.wordpress.com/2015/04/21/happy-birthday-joan-hutchinson/feed/ 0 675 derrickstolee https://computationalcombinatorics.wordpress.com/2015/04/15/shannon-capacity-of-odd-cycles/ https://computationalcombinatorics.wordpress.com/2015/04/15/shannon-capacity-of-odd-cycles/#respond Wed, 15 Apr 2015 20:26:27 +0000 https://computationalcombinatorics.wordpress.com/?p=661 improved lower bounds on the Shannon capacity of some odd cycles. These improvements over a very old and difficult problem come via some sophisticated algorithms.]]> https://computationalcombinatorics.wordpress.com/2015/04/15/shannon-capacity-of-odd-cycles/feed/ 0 661 derrickstolee https://computationalcombinatorics.wordpress.com/2015/03/02/announcement-computational-combinatorics-at-canadam/ https://computationalcombinatorics.wordpress.com/2015/03/02/announcement-computational-combinatorics-at-canadam/#respond Mon, 02 Mar 2015 00:49:53 +0000 https://computationalcombinatorics.wordpress.com/?p=654 https://computationalcombinatorics.wordpress.com/2015/03/02/announcement-computational-combinatorics-at-canadam/feed/ 0 654 derrickstolee https://computationalcombinatorics.wordpress.com/2015/01/20/grwc-2015-announcement/ https://computationalcombinatorics.wordpress.com/2015/01/20/grwc-2015-announcement/#respond Tue, 20 Jan 2015 16:39:54 +0000 https://computationalcombinatorics.wordpress.com/?p=650 https://computationalcombinatorics.wordpress.com/2015/01/20/grwc-2015-announcement/feed/ 0 650 derrickstolee https://computationalcombinatorics.wordpress.com/2014/08/28/on-the-arxiv/ https://computationalcombinatorics.wordpress.com/2014/08/28/on-the-arxiv/#comments Thu, 28 Aug 2014 08:00:10 +0000 https://computationalcombinatorics.wordpress.com/?p=631 https://computationalcombinatorics.wordpress.com/2014/08/28/on-the-arxiv/feed/ 1 631 derrickstolee A toroidal lattice. https://computationalcombinatorics.wordpress.com/2014/07/17/boron-and-buckyballs/ https://computationalcombinatorics.wordpress.com/2014/07/17/boron-and-buckyballs/#respond Thu, 17 Jul 2014 16:11:00 +0000 https://computationalcombinatorics.wordpress.com/?p=609 https://computationalcombinatorics.wordpress.com/2014/07/17/boron-and-buckyballs/feed/ 0 609 derrickstolee The borospherene molecule. Credit: Zhai et al.