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机译:Convexity in topological betweenness structures
Trinity Coll Dublin, Sch Comp Sci, Dublin, Ireland;
Marquette Univ, Dept Math & Stat Sci, Milwaukee, WI 53201 USA;
Natl Univ Ireland Galway, Sch Math Stat & Appl Math, Galway, Ireland;
Topological betweenness structures; Convexity; Frechet systems; Roads; Intervals; Metric spaces; Normed vector spaces; Continua;