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Nodal inequalities on surfaces
| Content Provider | Scilit |
|---|---|
| Author | Polterovich, Leonid Sodin, Mikhail |
| Copyright Year | 2007 |
| Description | Given a Laplace eigenfunction on a surface, we study the distribution of its extrema on the nodal domains. It is classically known that the absolute value of the eigenfunction is asymptotically bounded by the 4th root of the eigenvalue. It turns out that the number of nodal domains where the eigenfunction has an extremum of such order, remains bounded as the eigenvalue tends to infinity. We also observe that certain restrictions on the distribution of nodal extrema and a version of the Courant nodal domain theorem are valid for a rather wide class of functions on surfaces. These restrictions follow from a bound in the spirit of Kronrod and Yomdin on the average number of connected components of level sets. |
| Related Links | http://arxiv.org/pdf/math/0604493 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/0B1C2C8B11815DC3083FA97225F1A775/S0305004107000175a.pdf/div-class-title-nodal-inequalities-on-surfaces-div.pdf |
| Ending Page | 467 |
| Page Count | 9 |
| Starting Page | 459 |
| ISSN | 03050041 |
| e-ISSN | 14698064 |
| DOI | 10.1017/s0305004107000175 |
| Journal | Mathematical Proceedings of the Cambridge Philosophical Society |
| Issue Number | 2 |
| Volume Number | 143 |
| Language | English |
| Publisher | Cambridge University Press (CUP) |
| Publisher Date | 2007-09-01 |
| Access Restriction | Open |
| Subject Keyword | Mathematical Proceedings of the Cambridge Philosophical Society Spectral Theory Connected Component Differential Geometry Level Set |
| Content Type | Text |
| Resource Type | Article |
| Subject | Mathematics |
