Branching stable processes and motion by mean curvature flow
We prove a new result relating solutions of the scaled fractional Allen–Cahn equation to motion by mean curvature flow, motivated by the motion of hybrid zones in populations that exhibit long range dispersal. Our proof is purely probabilistic and takes inspiration from Etheridge et al. [30] to desc...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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Institute of Mathematical Statistics
2024
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| _version_ | 1826312258370666496 |
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| author | Becker, K Etheridge, A Letter, I |
| author_facet | Becker, K Etheridge, A Letter, I |
| author_sort | Becker, K |
| collection | OXFORD |
| description | We prove a new result relating solutions of the scaled fractional Allen–Cahn equation to motion by mean curvature flow, motivated by the motion of hybrid zones in populations that exhibit long range dispersal. Our proof is purely probabilistic and takes inspiration from Etheridge et al. [30] to describe solutions of the fractional Allen–Cahn equation in terms of ternary branching α-stable motions. To overcome technical difficulties arising from the heavy-tailed nature of the stable distribution, we couple ternary branching stable motions to ternary branching Brownian motions subordinated by truncated stable subordinators. |
| first_indexed | 2024-03-07T08:26:24Z |
| format | Journal article |
| id | oxford-uuid:8d9a01f1-3409-4922-af86-2f8b5aa48c7a |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T08:26:24Z |
| publishDate | 2024 |
| publisher | Institute of Mathematical Statistics |
| record_format | dspace |
| spelling | oxford-uuid:8d9a01f1-3409-4922-af86-2f8b5aa48c7a2024-02-16T08:48:20ZBranching stable processes and motion by mean curvature flowJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8d9a01f1-3409-4922-af86-2f8b5aa48c7aEnglishSymplectic ElementsInstitute of Mathematical Statistics2024Becker, KEtheridge, ALetter, IWe prove a new result relating solutions of the scaled fractional Allen–Cahn equation to motion by mean curvature flow, motivated by the motion of hybrid zones in populations that exhibit long range dispersal. Our proof is purely probabilistic and takes inspiration from Etheridge et al. [30] to describe solutions of the fractional Allen–Cahn equation in terms of ternary branching α-stable motions. To overcome technical difficulties arising from the heavy-tailed nature of the stable distribution, we couple ternary branching stable motions to ternary branching Brownian motions subordinated by truncated stable subordinators. |
| spellingShingle | Becker, K Etheridge, A Letter, I Branching stable processes and motion by mean curvature flow |
| title | Branching stable processes and motion by mean curvature flow |
| title_full | Branching stable processes and motion by mean curvature flow |
| title_fullStr | Branching stable processes and motion by mean curvature flow |
| title_full_unstemmed | Branching stable processes and motion by mean curvature flow |
| title_short | Branching stable processes and motion by mean curvature flow |
| title_sort | branching stable processes and motion by mean curvature flow |
| work_keys_str_mv | AT beckerk branchingstableprocessesandmotionbymeancurvatureflow AT etheridgea branchingstableprocessesandmotionbymeancurvatureflow AT letteri branchingstableprocessesandmotionbymeancurvatureflow |