Volume 8, issue 1 (2008)

 Download this article For screen For printing
 Recent Issues
 The Journal About the Journal Editorial Board Editorial Interests Subscriptions Submission Guidelines Submission Page Policies for Authors Ethics Statement ISSN (electronic): 1472-2739 ISSN (print): 1472-2747 Author Index To Appear Other MSP Journals
The foam and the matrix factorization $\mathit{sl}_3$ link homologies are equivalent

Marco Mackaay and Pedro Vaz

Algebraic & Geometric Topology 8 (2008) 309–342
Abstract

We prove that the universal rational ${sl}_{3}$ link homologies which were constructed by Khovanov in [?] and the authors in [?], using foams, and by Khovanov and Rozansky in [?], using matrix factorizations, are naturally isomorphic as projective functors from the category of links and link cobordisms to the category of bigraded vector spaces.

Keywords
$sl_3$, foams, Khovanov, Khovanov–Rozansky, link homology, matrix factorization
Mathematical Subject Classification 2000
Primary: 57M27
Secondary: 57M25, 81R50, 18G60
Publication
Received: 16 October 2007
Revised: 5 November 2007
Accepted: 2 January 2008
Published: 12 March 2008
Authors
 Marco Mackaay Departamento de Matemática Universidade do Algarve Campus de Gambelas 8005-139 Faro Portugal Pedro Vaz Departamento de Matemática Universidade do Algarve Campus de Gambelas 8005-139 Faro Portugal