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• CommentRowNumber1.
• CommentAuthorMike Shulman
• CommentTimeJan 8th 2014

Renamed the page Spec to Spectrum.

• CommentRowNumber2.
• CommentAuthorDavid_Corfield
• CommentTimeJan 8th 2014

What’s the precise idea of where the two senses of spectrum meet, that the spectrum of the sphere spectrum has Morava-K theories as points (arXiv:1401.1044, p. 10)?

• CommentRowNumber3.
• CommentAuthorUrs
• CommentTimeJan 16th 2021

I have added the statement that in $Spectra$ homotopy cartesian squares are equivalently homotopy cocartesian, with some remarks and pointers.

• CommentRowNumber4.
• CommentAuthorUrs
• CommentTimeJan 16th 2021

Ah, now I see why this page was so empty: There is also stable (infinity,1)-category of spectra and the two should probably be merged.

• CommentRowNumber5.
• CommentAuthorUrs
• CommentTimeJan 16th 2021

Hm, it may be tedious to merge these entries in a satisfactory way. Maybe instead I’ll give the section on finite homotopy (co)limits of spectra its own stand-alone entry, for ease of !include-ing it into relevant entries (such as these two, but also stable homotopy category etc.).