Contents Online

# Mathematical Research Letters

## Volume 8 (2001)

### Number 4

### Contents

Intersecting Legendrians and blow-ups

pp. 413-428

Gauge Interpretation of Characteristic Classes

pp. 457-468

Infinite towers of tree lattices

pp. 469-477

Congruences of modular forms and Selmer groups

pp. 479-494

Fixed point formula for characters of automorphism groups associated with Kähler classes

pp. 495-507

Instability of periodic BGK waves

pp. 521-534