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The Chromatic Ext Groups
Authors:Ippei Ichigi  Hirofumi Nakai  Douglas C Ravenel
Institution:Department of Mathematics, Kochi University, Kochi 780-8520, Japan ; Department of Mathematics, Oshima National College of Maritime Technology, Oshima, Japan ; Department of Mathematics, University of Rochester, Rochester, New York 14627
Abstract:We compute a certain Ext group related to the chromatic spectral sequence for $T (m)$, the spectrum whose $BP$-homology is $BP_{*}t_{1},\cdots ,t_{m}]$ for each $m\ge 3$. The answer we get displays a kind of periodicity not seen in the corresponding computation for the sphere spectrum.

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