DOIAbstract
AbstractMotivated by the Frankl's results in [P. Frankl, Multiply-intersecting families, J. Combin. Theory B 53 (1991) 195–234], we consider some problems concerning the maximum size of multiply-intersecting families with additional conditions. Among other results, we show the following version of the Erdős–Ko–Rado theorem: for all r⩾5 and 1⩽t⩽2r+1−3r−1 there exist positive constants ε and n0 such that if n>n0 and |kn−12|<ε then r-wise t-intersecting k-uniform families on n vertices have size at most max{(n−tk−t),(t+r)(n−t−rk−t−r+1)+(n−t−rk−t−r)}
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