Homotopy comultiplications on the localization of a wedge of spheres and Moore spaces by Dae-Woong Lee

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Comultiplications on the Localized Spheres and Moore Spaces by Dae-Woong Lee

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On Gottlieb groups G_{n+k}(M(Z^m + Z_2,n)) for k=1,2 by Thiago de Melo, Marek Golasiński, Rodrigo Bononi

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On homotopy nilpotency of some suspended spaces by Marek Golasinski

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Some problems in algebraic topology by Gilbert, W

“…We then prove the dual theorem concerning the relationships between the invariants cocategory, weak cocategory, nilpotency and Whitehead product length. THEOREM Let A be countable CW-complex, then $cocat A geq wcocat A geq nil A geq W-long A$ and furthermore all the inequalities can occur. …”