The existence and explanation of steady-state multiplicity in methyl tert-butyl ether (MTBE) reac... more The existence and explanation of steady-state multiplicity in methyl tert-butyl ether (MTBE) reactive distillation have been addressed by several authors. Recently, Schrans et al.(Comput. Chem. Eng. 1996b, 20, S1609-S1614) analyzed the dynamic behavior of a ...
We discuss new realizations of W algebras in which the currents are expressed in terms of two arb... more We discuss new realizations of W algebras in which the currents are expressed in terms of two arbitrary commuting energy-momentum tensors together with a set of free scalar fields. This contrasts with the previously-known realizations, which involve only one energy-momentum tensor. Since realizations of nonlinear algebras are not easy to come by, the fact that this new class exists is
We obtain the complete physical spectrum of the $W_N$ string, for arbitrary $N$. The $W_N$ constr... more We obtain the complete physical spectrum of the $W_N$ string, for arbitrary $N$. The $W_N$ constraints freeze $N-2$ coordinates, while the remaining coordinates appear in the currents only {\it via} their energy-momentum tensor. The spectrum is then effectively described by a set of ordinary Virasoro-like string theories, but with a non-critical value for the central charge and a discrete set
The existence and explanation of steady-state multiplicity in methyl tert-butyl ether (MTBE) reac... more The existence and explanation of steady-state multiplicity in methyl tert-butyl ether (MTBE) reactive distillation have been addressed by several authors. Recently, Schrans et al.(Comput. Chem. Eng. 1996b, 20, S1609-S1614) analyzed the dynamic behavior of a ...
We discuss new realizations of W algebras in which the currents are expressed in terms of two arb... more We discuss new realizations of W algebras in which the currents are expressed in terms of two arbitrary commuting energy-momentum tensors together with a set of free scalar fields. This contrasts with the previously-known realizations, which involve only one energy-momentum tensor. Since realizations of nonlinear algebras are not easy to come by, the fact that this new class exists is
We obtain the complete physical spectrum of the $W_N$ string, for arbitrary $N$. The $W_N$ constr... more We obtain the complete physical spectrum of the $W_N$ string, for arbitrary $N$. The $W_N$ constraints freeze $N-2$ coordinates, while the remaining coordinates appear in the currents only {\it via} their energy-momentum tensor. The spectrum is then effectively described by a set of ordinary Virasoro-like string theories, but with a non-critical value for the central charge and a discrete set
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Papers by Stany Schrans