Published by Duke University Press since its inception in 1935, the Duke Mathematical Journal is one of the world's leading mathematical journals. Without specializing in a small number of subject areas, it emphasizes the most active and influential areas of current mathematics.

### Volume 83, Number 3

#### Publication Date: June 1996

Faisceaux pervers $\ell$-adiques sur un tore

Ofer Gabber and François Loeser; 501-606

Composite differentiable functions

Edward Bierstone, Pierre D. Milman and Wiesław Pawłucki; 607-620

Perverse sheaves and quivers

Sergei Gelfand, Robert MacPherson and Kari Vilonen; 621-643

Relations among Donaldson invariants arising from negative $2$-spheres and tori

Daniel Ruberman; 645-660

Sous-groupes distingués et quotients des groupes hyperboliques

Thomas Delzant; 661-682

On $A$-integrability of the spectral shift function of unitary operators arising in the Lax-Phillips scattering theory

A. V. Rybkin; 683-699