= John R. Stembridge
{c}
<John R. Stembridge> works on <algebraic combinatorics>, <representation theory>, <Coxeter groups> and <symmetric functions>. His Michigan profile also identifies computational methods in algebra as a focus.https://lsa.umich.edu/math/people/emeritus-faculty/jrs.html[Institutional research statement]{ref}
With <Richard P. Stanley>, he studied immanants of matrices associated with the <Jacobi–Trudi identity>. An immanant replaces the sign character in a <determinant> by another <symmetric group> character. Their paper proves special cases of stronger positivity conjectures and connects the calculation with cycle structure of permutations having restricted positions.<On Immanants of Jacobi-Trudi Matrices and Permutations with Restricted Position by Richard P. Stanley and John R. Stembridge>[Abstract and section 1]{ref}
\Image[https://websites.umich.edu/~jrs/gifs/jrs97.gif]
{title=John R. Stembridge}
{description=Portrait identified by the linked primary author or institutional profile.}
{source=https://websites.umich.edu/~jrs/}
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