Volume 20, issue 7 (2020)

Download this article
Download this article For screen
For printing
Recent Issues

Volume 24
Issue 5, 2389–2970
Issue 4, 1809–2387
Issue 3, 1225–1808
Issue 2, 595–1223
Issue 1, 1–594

Volume 23, 9 issues

Volume 22, 8 issues

Volume 21, 7 issues

Volume 20, 7 issues

Volume 19, 7 issues

Volume 18, 7 issues

Volume 17, 6 issues

Volume 16, 6 issues

Volume 15, 6 issues

Volume 14, 6 issues

Volume 13, 6 issues

Volume 12, 4 issues

Volume 11, 5 issues

Volume 10, 4 issues

Volume 9, 4 issues

Volume 8, 4 issues

Volume 7, 4 issues

Volume 6, 5 issues

Volume 5, 4 issues

Volume 4, 2 issues

Volume 3, 2 issues

Volume 2, 2 issues

Volume 1, 2 issues

The Journal
About the Journal
Editorial Board
Subscriptions
 
Submission Guidelines
Submission Page
Policies for Authors
Ethics Statement
 
ISSN 1472-2739 (online)
ISSN 1472-2747 (print)
Author Index
To Appear
 
Other MSP Journals
This article is available for purchase or by subscription. See below.
Fundamental groups of formal Legendrian and horizontal embedding spaces

Eduardo Fernández, Javier Martínez-Aguinaga and Francisco Presas

Algebraic & Geometric Topology 20 (2020) 3219–3312
Abstract

We compute the fundamental group of each connected component of the space of formal Legendrian embeddings in 3. We use it to show that previous examples in the literature of nontrivial loops of Legendrian embeddings are already nontrivial at the formal level. Likewise, we compute the fundamental group of the different connected components of the space of formal horizontal embeddings into the standard Engel 4. We check that the natural inclusion of the space of horizontal embeddings into the space of formal horizontal embeddings induces an isomorphism at π1–level.

PDF Access Denied

We have not been able to recognize your IP address 35.170.81.33 as that of a subscriber to this journal.
Online access to the content of recent issues is by subscription, or purchase of single articles.

Please contact your institution's librarian suggesting a subscription, for example by using our journal-recom­mendation form. Or, visit our subscription page for instructions on purchasing a subscription.

You may also contact us at contact@msp.org
or by using our contact form.

Or, you may purchase this single article for USD 40.00:

Keywords
Legendrian knots, horizontal knots, formal embeddings
Mathematical Subject Classification
Primary: 57R17, 58A17
Secondary: 53D10
References
Publication
Received: 27 November 2017
Revised: 11 November 2019
Accepted: 9 December 2019
Published: 29 December 2020
Authors
Eduardo Fernández
Departamento de Álgebra, Geometría y Topología, Facultad de Matemáticas, Universidad Complutense de Madrid, and Instituto de Ciencias Matemáticas CSIC-UAM-UC3M-UCM
Madrid
Spain
Javier Martínez-Aguinaga
Departamento de Álgebra, Geometría y Topología, Facultad de Matemáticas, Universidad Complutense de Madrid, and Instituto de Ciencias Matemáticas CSIC-UAM-UC3M-UCM
Madrid
Spain
Francisco Presas
Instituto de Ciencias Matemáticas CSIC-UAM-UC3M-UCM
Madrid
Spain