Centralizer construction of the Yangian of the queer Lie superalgebra

Consider the complex matrix Lie superalgebra g(l)N vertical bar N with the standard generators C E-ij where i, j = +/- l,..., +/- N. Define an involutive automorphism eta of g(l)N vertical bar N by eta(E-ij)= E-i,-j. The queer Lie superalgebra q(N) is the fixed point subalgebra in g(l)N vertical bar N relative to eta. Consider the twisted polynomial Current Lie superalgebra g={X(t)is an element of g(l)N vertical bar N[t]:eta(X(t))=X(-t)}. The enveloping algebra U(p) of the Lie superalgebra g has a deformation, called the Yangian of qN. For each M = 1, 2, denote by A(N)(M) the centralizer of q(M) subset of q N+M in the associative superalgebra U(qN+M).In this article we construct a sequence Of Surjective homornorphisms U(qN) <- A(N)(1)<- A(N)(2)....We describe the inverse limit of the sequence of centralizer algebras A(N)(1),A(N)(2),.... in terms of the Yangian Of qN.