[math/0507542] A new kind of index theorem

This is Ron Douglas' talk at the Kaminker retirement conference.

## Wednesday, July 27, 2005

## Tuesday, July 26, 2005

## Thursday, July 21, 2005

## Monday, July 18, 2005

### [math/0502388] Quotients of Standard Hilbert Modules

[math/0502388] Quotients of Standard Hilbert Modules

Kind of a synthesis of BDF and algebraic geometry. By Bill Arveson.

Kind of a synthesis of BDF and algebraic geometry. By Bill Arveson.

## Monday, July 11, 2005

### A Comparison of Leibniz and Cyclic Homologies

Authors: Jerry Lodder

Comments: 14 pages

Subj-class: K-Theory and Homology; Algebraic Topology

MSC-class: 19D55; 17B66; 17A32

We relate Leibniz homology to cyclic homology by studying a map from a long exact sequence in the Leibniz theory to the ISB periodicity sequence in the cyclic theory. This provides a setting by which the two theories can be compared via the 5-lemma. We then show that the Godbillon-Vey invariant, as detected by the Leibniz homology of formal vector fields, maps to the Godbillon-Vey invariant as detected by the cyclic homology of the universal enveloping algebra of these vector fields.

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