Commentarii Mathematici Helvetici


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Volume 84, Issue 2, 2009
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Diameter pinching in almost positive Ricci curvature
Erwann Aubry
pp. 223–233
Abstract | Full-Text PDF (119 KB) | Metadata

Freeness of conic-line arrangements in ℙ2
Henry K. Schenck and Ştefan O. Tohǎneanu
pp. 235–258
Abstract | Full-Text PDF (207 KB) | Metadata

Groups with finitely many conjugacy classes and their automorphisms
Ashot Minasyan
pp. 259–296
Abstract | Full-Text PDF (328 KB) | Metadata

Lower algebraic K-theory of hyperbolic 3-simplex reflection groups
Jean-François Lafont and Ivonne J. Ortiz
pp. 297–337
Abstract | Full-Text PDF (317 KB) | Metadata

NK0 and NK1 of the groups C4 and D4
Addendum to “Lower algebraic K-theory of hyperbolic 3-simplex reflection groups” by J.-F. Lafont and I. J. Ortiz
Charles A. Weibel
pp. 339–349
Abstract | Full-Text PDF (138 KB) | Metadata

Complete surfaces with positive extrinsic curvature in product spaces
José M. Espinar, José A. Gálvez and Harold Rosenberg
pp. 351–386
Abstract | Full-Text PDF (2227 KB) | Metadata

Counting tropical elliptic plane curves with fixed j-invariant
Michael Kerber and Hannah Markwig
pp. 387–427
Abstract | Full-Text PDF (311 KB) | Metadata

On the Weinstein conjecture in higher dimensions
Peter Albers and Helmut W. Hofer
pp. 429–436
Abstract | Full-Text PDF (99 KB) | Metadata

Amenable groups and Hadamard spaces with a totally disconnected isometry group
Pierre-Emmanuel Caprace
pp. 437–455
Abstract | Full-Text PDF (176 KB) | Metadata