@Article{JPDE-25-199, author = {Yang , Liuqing}, title = {Nonexistence of Blow-up Flows for Symplectic and Lagrangian Mean Curvature Flows}, journal = {Journal of Partial Differential Equations}, year = {2012}, volume = {25}, number = {3}, pages = {199--207}, abstract = {

In this paper we mainly study the relation between $|A|^2, |H|^2$ and cosα (α is the Kähler angle) of the blow up flow around the type II singularities of a symplectic mean curvature flow. We also study similar property of an almost calibrated Lagrangian mean curvature flow. We show the nonexistence of type II blow-up flows for a symplectic mean curvature flow satisfying $|A|^2≤λ|H|^2$ and $cosα≥δ>1-\frac{1}{2λ}(½≤α≤ 2)$, or for an almost calibrated Lagrangian mean curvature flow satisfying $|A|^2≤λ|H|^2$ and $cosθ≥δ>max\ {0,1-\frac{1}{λ}}(\frac34≤λ≤ 2)$, where θ is the Lagrangian angle.

}, issn = {2079-732X}, doi = {https://doi.org/10.4208/jpde.v25.n3.1}, url = {http://global-sci.org/intro/article_detail/jpde/5183.html} }