  We employ density-dependent relativistic mean-field theory to study how the
triaxiality and pairing interaction affect the inner fission barriers of
actinide nuclei. It was found that triaxiality reduced the inner fission
barriers and improved agreement with experimental values for many actinides.
However, about 1-2 MeV discrepancy to the experimental values still remained
for some of the considered nuclei. Such a discrepancy could be made further
smaller by increasing the BCS pairing strength parameter. In this work, we
demonstrated that adjusting the paring strength was effective to reproduce the
experimental inner fission barriers as well as "pairing rotational energy" and
binding energy in a consistent manner for nuclei where the effect of the
triaxiality on the inner fission barriers was significant.
