This is a preview. Log in through your library . Abstract For 0 < s < 1, let φs(z) = sz + (1 – s). We investigate the unital C*-algebra generated by the semigroup ...

We study the composition operators on an algebra of Dirichlet series, the analogue of the Wiener algebra of absolutely convergent Taylor series, which we call the Wiener-Dirichlet algebra. The central ...

Algebra is one of the biggest hurdles to getting a high school or college degree — particularly for students of color and first-generation undergrads. It is also the single most failed course in ...