Contents Online

# Mathematical Research Letters

## Volume 20 (2013)

### Number 4

### Contents

Ratios of periods for tensor product motives

pp. 615-628

New constructions of Cremona maps

pp. 629-645

Lipschitz constants to curve complexes

pp. 647-656

An example of a minimal action of the free semi-group $\mathbb{F}^{+}_{2}$ on the Hilbert space

pp. 695-704

The $j$-multiplicity of monomial ideals

pp. 729-744

$3 \times 3$ minors of catalecticants

pp. 745-756

Dynamics of two-resonant biholomorphisms

pp. 757-771