probabilistic normed linear spaces, probabilistically bounded sets, Fixed-point and coincidence theorems (topological aspects), fixed point theory, Functional analysis in probabilistic metric linear spaces, Other ``topological'' linear spaces (convergence spaces, ranked spaces, spaces with a metric taking values in an ordered structure more general than \(\mathbb{R}\), etc.), Fixed-point theorems, \(PM\)-space, probabilistic metric spaces, Menger PM-spaces, Probabilistic metric spaces, linear operator, PM-space