Epimorphic covers make $R_G^{+}$ a site, for profinite $G$.

Davis, Daniel G.. "Epimorphic covers make a site, for profinite .." Theory and Applications of Categories [electronic only] 22 (2009): 388-400. <http://eudml.org/doc/228656>.

@article{Davis2009,
author = {Davis, Daniel G.},
journal = {Theory and Applications of Categories [electronic only]},
keywords = {site; profinite group; finite discrete -set; presheaves of spectra; Lubin-Tate spectrum; finite discrete -set},
language = {eng},
pages = {388-400},
publisher = {Mount Allison University, Department of Mathematics and Computer Science, Sackville},
title = {Epimorphic covers make a site, for profinite .},
url = {http://eudml.org/doc/228656},
volume = {22},
year = {2009},
}

TY - JOUR
AU - Davis, Daniel G.
TI - Epimorphic covers make a site, for profinite .
JO - Theory and Applications of Categories [electronic only]
PY - 2009
PB - Mount Allison University, Department of Mathematics and Computer Science, Sackville
VL - 22
SP - 388
EP - 400
LA - eng
KW - site; profinite group; finite discrete -set; presheaves of spectra; Lubin-Tate spectrum; finite discrete -set
UR - http://eudml.org/doc/228656
ER -