Decomposition of tensor product representations of the unitary matrix quantum group SU q (2)We first review the spectrum of the Laplacian operator on a general Laakso space before considering modified Hamiltonians for the infinite square well, parabola, and Coulomb potentials. Additionally, we compute the spectrum for the Laplacian and its multiplicities when certain regions of a Laakso space are compressed or stretched and calculate the Casimir force experienced by two uncharged conducting plates by imposing physically relevant boundary conditions and then analytically regularizing the resulting zeta function. Lastly, we derive a general formula for the spectral zeta function and its derivative for Laakso spaces with strict self-similar structure before listing explicit spectral values for some special cases C 2012 American Institute of Physics. [http://dx.

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1988. xviii + 366 pp. $29.95.)The Society of St. Sulpice is not well known among the American Catholic population these days. Most Catholic lay people recognize the Jesuits, Franciscans, Dominicans, and other re ligious orders, but most have never heard of the Sulpicians. That is not altogether a surprise because the order has had only a few hundred members since the first Sulpician priests arrived from France in 1790. This anonymity is replete with irony, however, because the Sulpicians have played a critical role in the foundation and de velopment of American Catholicism.

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