I saw
https://admin.fedoraproject.org/pkgdb/package/texlive/ that there
is not texlive for EPEL7.
But in a CentOS 7 installation, if I do "yum search texlive" you get
many packages. They have been simply automatically ported from the EPEL
6 repos? Why are them so less in amount, compared to the Fedora
texlive-full-scheme?