Calculating Colimits Compositionally

We show how finite limits and colimits can be calculated compositionally using the algebras of spans and cospans, and give as an application a proof of the Kleene Theorem on regular languages

Calculating Colimits Compositionally

We show how finite limits and colimits can be calculated compositionally using the algebras of spans and cospans, and give as an application a proof of the Kleene Theorem on regular languages

The Theory of Monetary Aggregation (book front matter)

This is the front matter from the book, William A. Barnett and Apostolos Serletis (eds.), The Theory of Monetary Aggregation, published in 2000 by Elsevier in its Contributions to Economic Anaysis mongraph series. The front matter includes the Table of Contents and the Introduction by Barnett and Serletis and the Preface by W. Erwin Diewert. The volume contains a unified collection and discussion of W. A. Barnett's most important published papers on financial aggregation theory and monetary economics.monetary aggregation, money demand, Divisia, Divisia monetary aggregates, index number theory, aggregation theory

Confluence: the Galician Origins of Polish Analytic Philosophy

Separate Austrian influences, those of Bolzano and Brentano, came together in the work of Kazimierz Twardowski, the founder of the Lvov–Warsaw School and Polish analytic philosophy. From Bolzano he took the ideas of abstract content and absolute truth; from Brentano the centrality of intentionality and the role of psychology, and from both an awareness of the historical depth of philosophy. These streams flowed together in and through him to form central doctrines, attitudes and practices of that School, from its origins in 1895 to its continuation in contemporary Polish philosophy

Two-parameter Sturm-Liouville problems

This paper deals with the computation of the eigenvalues of two-parameter Sturm- Liouville (SL) problems using the Regularized Sampling Method, a method which has been effective in computing the eigenvalues of broad classes of SL problems (Singular, Non-Self-Adjoint, Non-Local, Impulsive,...). We have shown, in this work that it can tackle two-parameter SL problems with equal ease. An example was provided to illustrate the effectiveness of the method.Comment: 9 page

On the Potential of Large Ring Lasers

We describe a new ring laser with area A = 833 m^2 and update performance statistics for several such machines. Anandan & Chaio 1982 judged ring lasers inferior to matter interferometers as possible detectors of gravitational waves. However, we note that geophysically interesting results have been obtained from large ring lasers and that there is still a lot of room for improvements.Comment: accepted optics communication