2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/46268Q**2 dependence of nuclear structure functions is important for understanding perturbative QCD in nuclear environment. However, current experimental data are not sufficient for studying nuclear dependence in the Q**2 evolution because the data are limited in the small Q**2 region at small x. The future HERA program can study the evolution in the large Q**2 region, and it provides us crucial information on recombination effects and on higher-order alpha_s effects in the nuclear structure functions.4 pages, Latex2e with floatfig.sty, 2 eps figures. Contribution to "Future Physics at HERA". Complete postscript file including the figures is available at ftp://ftp.cc.saga-u.ac.jp/pub/paper/riko/quantum1/saga-he-104.ps.gz or at http://www.cc.saga-u.ac.jp/saga-u/riko/physics/quantum1/structure.htmlHigh Energy Physics - PhenomenologyNuclear Theorytext