skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.


This content will become publicly available on September 18, 2026

Title: Diagonals and A-Infinity Tensor Products
Extending work of Saneblidze–Umble and others, we use diagonals for the associahedron and multiplihedron to define tensor products of𝐴-algebras, modules, algebra homomorphisms, and module morphisms, as well as to define a bimodule analogue of twisted complexes (typeDDstructures, in the language of bordered Heegaard Floer homology) and their one- and two-sided tensor products. We then give analogous definitions for 1-parameter deformations of𝐴-algebras; this involves another collection of complexes. These constructions are relevant to bordered Heegaard Floer homology.  more » « less
Award ID(s):
1810893 2110143 1507244
PAR ID:
10636694
Author(s) / Creator(s):
; ;
Publisher / Repository:
Akadémiai Kiadó
Date Published:
Journal Name:
Studia Scientiarum Mathematicarum Hungarica
Volume:
62
Issue:
2-3
ISSN:
0081-6906
Page Range / eLocation ID:
97 to 304
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
More Like this
  1. Abstract A previous result about the decategorified bordered (sutured) Heegaard Floer invariants of surfaces glued together along intervals, generalizing the decategorified content of Rouquier and the author’s higher-tensor-product-based gluing theorem in cornered Heegaard Floer homology, was proved only over $${\mathbb{F}}_2$$ and without gradings. In this paper we add signs and prove a graded version of the interval gluing theorem over $${\mathbb{Z}}$$, enabling a more detailed comparison of these aspects of decategorified Heegaard Floer theory with modern work on non-semisimple 3d TQFTs in mathematics and physics. 
    more » « less
  2. Auroux, Denis; Biran, Paul; Donaldson, Simon; Mrowka, Tomasz (Ed.)
    We describe a weighted A-infinity algebra associated to the torus. We give a combinatorial construction of this algebra, and an abstract characterization. The abstract characterization also gives a relationship between our algebra and the wrapped Fukaya category of the torus. These algebras underpin the (unspecialized) bordered Heegaard Floer homology for three-manifolds with torus boundary, which will be constructed in forthcoming work. 
    more » « less
  3. Gross, David; Yao, Andrew Chi-Chih; Yau, Shing-Tung (Ed.)
    Bordered Floer homology is an invariant for 3-manifolds with boundary, defined by the authors in 2008. It extends the Heegaard Floer homology of closed 3-manifolds, defined in earlier work of Zoltán Szabó and the second author. In addition to its conceptual interest, bordered Floer homology also provides powerful computational tools. This survey outlines the theory, focusing on recent developments and applications. 
    more » « less
  4. Gross, D; Yao, A C-C; Yau, S-T (Ed.)
    Bordered Floer homology is an invariant for 3-manifolds with boundary, defined by the authors in 2008. It extends the Heegaard Floer homology of closed 3-manifolds, defined in earlier work of Zoltán Szabó and the second author. In addition to its conceptual interest, bordered Floer homology also provides powerful computational tools. This survey outlines the theory, focusing on recent developments and applications. 
    more » « less
  5. null (Ed.)
    Abstract We show that the integer homology sphere obtained by splicing two nontrivial knot complements in integer homology sphere L-spaces has Heegaard Floer homology of rank strictly greater than one. In particular, splicing the complements of nontrivial knots in the 3-sphere never produces an L-space. The proof uses bordered Floer homology. 
    more » « less