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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

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Traveling vortex helices for Schrödinger map equations
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by Juncheng Wei and Jun Yang PDF
Trans. Amer. Math. Soc. 368 (2016), 2589-2622 Request permission

Abstract:

We construct traveling wave solutions with vortex helix structures for the Schrödinger map equation \[ \frac {\partial m}{\partial t}= m \times (\Delta m - m_3 \vec {e}_3) \quad \mbox {on} \ {\mathbb R}^3 \times {\mathbb R} \] of the form $m(s_1,s_2, s_3 -\delta |\log \epsilon |\epsilon t)$ with traveling velocity $\delta |\log \epsilon |\epsilon$ along the direction of the $s_3$ axis. We use a perturbation approach which gives a complete characterization of the asymptotic behavior of the solutions.
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Additional Information
  • Juncheng Wei
  • Affiliation: Department of Mathematics, University of British Columbia, Vancouver, BC V6T 1Z2 Canada – and – Department of Mathematics, Chinese University of Hong Kong, Shatin, NT, Hong Kong
  • MR Author ID: 339847
  • ORCID: 0000-0001-5262-477X
  • Email: wei@math.cuhk.edu.hk
  • Jun Yang
  • Affiliation: School of Mathematics and Statistics, Central China Normal University, Wuhan 430079, People’s Republic of China – and – College of Mathematics and Computational Sciences, Shenzhen University, Nanhai Avenue 3688, Shenzhen 518060, People’s Republic of China
  • Email: jyang@szu.edu.cn
  • Received by editor(s): September 14, 2012
  • Received by editor(s) in revised form: April 18, 2013, and January 23, 2014
  • Published electronically: July 14, 2015
  • Additional Notes: The second author is the corresponding author
  • © Copyright 2015 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 368 (2016), 2589-2622
  • MSC (2010): Primary 35B06, 35B40, 35J25, 35J20
  • DOI: https://doi.org/10.1090/tran/6379
  • MathSciNet review: 3449250