JournalscmhVol. 84, No. 1

Volume 84, No. 1 (2009)

Commentarii Mathematici Helvetici

Comment. Math. Helv. cover

pp. 1–19
A product formula for valuations on manifolds with applications to the integral geometry of the quaternionic line
Andreas Bernig
DOI 10.4171/CMH/150
pp. 21–56
Selmer groups and Tate–Shafarevich groups for the congruent number problem
Maosheng XiongAlexandru Zaharescu
DOI 10.4171/CMH/151
pp. 57–85
Kodaira dimension and symplectic sums
Michael Usher
DOI 10.4171/CMH/152
pp. 87–126
A Caporaso–Harris type formula for Welschinger invariants of real toric Del Pezzo surfaces
Ilia ItenbergViatcheslav KharlamovEugenii Shustin
DOI 10.4171/CMH/153
pp. 127–134
Transcendental submanifolds of projective space
Wojciech Kucharz
DOI 10.4171/CMH/154
pp. 135–157
String topology for spheres
Luc Menichi
DOI 10.4171/CMH/155
pp. 159–169
$\underline{E} G$ for systolic groups
Piotr Przytycki
DOI 10.4171/CMH/156
pp. 171–187
Group splittings and integrality of traces
Ioannis Emmanouil
DOI 10.4171/CMH/157
pp. 189–212
A lower bound on the essential dimension of a connected linear group
Philippe GilleZinovy Reichstein
DOI 10.4171/CMH/158
pp. 213–222
Zero-in-the-spectrum conjecture on regular covers of compact manifolds
Piotr W. Nowak
DOI 10.4171/CMH/159