VII. On approximately simple waves

Simple Strategy-Proof Approximately Walrasian Mechanisms

This paper provides an indirect analysis of the incentive properties of the Walrasian mechanism. It presents mechanisms under which truth-telling is a dominant strategy in ...nite exchange economies (in contrast to the Walrasian mechanism) and whose outcomes (generically) approximate Walrasian ones for large economies. These mechanisms provide new insights on the well-known trade-o¤ between e¢c...

Simple waves in relativistic fluids.

We consider the Riemann problem for relativistic flows of polytropic fluids and find relations for the flow characteristics. Evolution of physical quantities takes especially simple form for the case of cold magnetized plasmas. We find exact explicit analytical solutions for one-dimensional expansion of magnetized plasma into vacuum, valid for arbitrary magnetization. We also consider expansion...

APPROXIMATELY INNER sigma-DYNAMICS ON C* ALGEBRAS

Approximately Quasi Inner Generalized Dynamics on Modules

We investigate some properties of approximately quasi inner generalized dynamics and quasi approximately inner generalized derivations on modules. In particular, we prove that if A is a C*-algebra, is the generator of a generalized dynamics on an A-bimodule M satisfying and there exist two sequences of self adjoint elements in A such that for all in a core for , , then is approx...

On the Classification of Simple Approximately Subhomogeneous C*-algebras Not Necessarily of Real Rank Zero

A classification is given of certain separable nuclear C*-algebras not necessarily of real rank zero, namely the class of simple C*-algebras which are inductive limits of continuous-trace C*-algebras whose building blocks have their spectrum homeomorphic to the interval [0, 1] or to a finite disjoint union of closed intervals. In particular, a classification of those stably AI algebras which ar...