Femoral stem centralizers were originally designed for double tapered, straight stems. In a slightly modified configuration, the PMMA centralizer is plugged in a hole in the tip of the ABG II femoral prosthesis. The purpose of this study was to determine the effect of the centralizer on the position of the anatomical ABG II stem. Thirty-nine cemented ABG II stems with a centralizer were compare...

In view of the many applications of the theory of symmetric functions to representation theory it seems desirable to have a theory of symmetric functions in the spirit of Macdonald's book Mac] for Weyl groups other than the symmetric group. Our approach to this problem is to nd an algebraic structure which motivates each statement in the classical symmetric function theory. If this algebraic no...

We construct a homotopy theoretic setup for homology decompositions of classifying spaces of p-compact groups. This setup is then used to obtain a subgroup decomposition for p-compact groups which generalizes the subgroup decomposition with respect to p-stubborn subgroups for a compact Lie group constructed by Jackowski, McClure and Oliver. Homology decompositions are among the most useful tool...

Background and purpose - A tapered, polished and collarless stem is normally equipped with a hollow centralizer to prevent the stem from becoming end-bearing in the cement as the stem subsides. In a randomized clinical trial, we evaluated such a stem (MS-30), which was initially introduced with a solid centralizer but was later recommended to be fitted with a hollow centralizer. We hypothesized...

Let g be a simple, finite-dimensional Lie (super)algebra, equipped with an embedding of sl2 inducing the minimal gradation on g. The corresponding minimal Walgebra W(g, e−θ) introduced by Kac and Wakimoto has strong generators in weights 1, 2, 3 2 , and all operator product expansions are known explicitly. The weight one subspace generates an affine vertex (super)algebra A(g) where g ⊂ g denote...

In the representation theory, the classification and the construction of the irreducible representations are essential themes. In the first half of the twentieth century, I. Schur[11] introduced a prominent method to obtain the finite dimensional irreducible representations of the general linear group GL(n,C), or equivalently of its Lie algebra gl(n,C), which we call Schur-Weyl reciprocity at p...

Let g=g0¯⊕g1¯ be a basic classical Lie superalgebra over C, e∈g0¯ nilpotent element and ge the centralizer of e in g. We study various properties elements g, which have previously only been considered case algebras. In particular, we prove that is reachable if satisfies Panyushev property for g=sl(m|n), m≠n or psl(n|n) osp(m|2n). For exceptional superalgebras g=D(2,1;α), G(3), F(4), give classi...

This paper provides a unified approach to results on representations of affine Hecke algebras, cyclotomic Hecke algebras, affine BMW algebras, cyclotomic BMW algebras, Markov traces, Jacobi-Trudi type identities, dual pairs [Ze], and link invariants [Tu2]. The key observation in the genesis of this paper was that the technical tools used to obtain the results in Orellana [Or] and Suzuki [Su], t...