Editing Spectrum (topology) (section)

=== Thom spectra ===
{{Main|Thom spectrum}}
Another canonical example of spectra come from the [[Thom spectrum|Thom spectra]] representing various cobordism theories. This includes real cobordism <math>MO</math>, complex cobordism <math>MU</math>, framed cobordism, spin cobordism <math>MSpin</math>, string cobordism <math>MString</math>, and [[Whitehead tower|so on]]. In fact, for any topological group <math>G</math> there is a Thom spectrum <math>MG</math>.