16G20 4 16G60 4 15A63 3 minimax equivalence 3 quadratic Tits form 3 15A 2 15A30 2 15B33 2 16G 2 Tits form 2 minimax sum 2 the Tits form 2 the quadratic Tits form 2 (min 1 20F65 1 57M20 1 Hasse diagram 1 Kleiner's poset 1 Tits \(P\)-critical poset 1 \(0\)-balanced subposet 1 \(P\)-critical poset 1 \(inj\)-finite poset 1 bimodule problem 1 category of representations 1 cell complex 1 critical poset 1 finite representation type 1 max)-equivalent posets 1 minimax (semiminimax) sum 1 one-side and two-side sums 1