作者: Aaron Anderson , Martino Lupini
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摘要: We realize the F_q-algebra M(F_q) studied by von Neumann and Halperin as Fraisse limit of class finite-dimensional matrix algebras over a finite field F_q equipped with rank metric. then provide new Fraisse-theoretic proof uniqueness such an object. Using results Carderi Thom, we show that automorphism group Aut(F_q) is extremely amenable. deduce Ramsey-theoretic property for M(F_q), explicit bound quantities involved.