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The current subscription is Volume XXIX, with the first issue published and available as of July 2019, with subsequent issues to be published in October 2019, January 2020, and April 2020.

Though we do not usually sell individual issues, we are making an exception for 2018 Volume XXVIII; Issue 1 ONLY – it has ground breaking work on the Chromatic Number of the Plane by Dr. Aubrey D.N.J. de Grey, and contains the first publication of his 5-chromatic unit-distance graph, and also includes work by Marijn J.H. Heule, who sets 6 consecutive world records in reducing the size of such graphs; and Geoffrey Exoo and Dan Ismailescu work towards the next big step.

For volume XXVIII we will have special pricing for the purchase of the volume, and for this volume only.

Volume XXVIII can be purchased for 30% over the usual subscription rates or purchase issue 1 only, for $29. The 30% only applies to the subscription rate, not the shipping costs.

For all your subscription needs please contact Mr. Chad Kushner at University of Colorado, Academic Office Bldg 117, 1420 Austin Bluffs Pkwy, Colorado Springs, CO 80918, USA or by e-mail ckushner@uccs.edu

 The annual subscription rates are paid in US currency and shipping is included.  If you are subscribing for past volumes you will receive all four issues for the volume. Please specify by volume number (i.e., “Volume XXV”) not volume year, as our quarterly publishing schedule crosses years.

You may pay by credit card via the PayPal buttons below – please choose the appropriate subscription rate from the drop down box:

Current Volume XXIX – July 2019 (includes shipping)

 

Volume XXVIII; Issue 1 ONLY (includes shipping)



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