Автор |
C J G Evertsz |
Автор |
P W Jones |
Автор |
B B Mandelbrot |
Дата выпуска |
1991-04-21 |
dc.description |
Diffusion-limited aggregates are among many important fractal shapes that involve deep indentations usually called fjords. To estimate the harmonic measure at the bottom of a fjord seems a prohibitive task, but the authors find that a new mathematical equality due to Beurling, Carleson and Jones makes it easy. They find that the harmonic measure at the bottom of a fjord, as a function of its Euclidean depth, can exhibit a wide range of behaviours. They introduce an infinite family of model fjords, for which the equality takes a very simple form. In this family the decay of the harmonic measure at their bottoms can be, for example, power law, semi-exponential, stretched exponential and exponentially stretched exponential. They show that self-affinity or randomness can lead to faster than power law decays of the minimal growth probability on boundaries. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Behaviour of the harmonic measure at the bottom of fjords |
Тип |
paper |
DOI |
10.1088/0305-4470/24/8/028 |
Print ISSN |
0305-4470 |
Журнал |
Journal of Physics A: Mathematical and General |
Том |
24 |
Первая страница |
1889 |
Последняя страница |
1901 |
Аффилиация |
C J G Evertsz; Dept. of Appl. Phys., Yale Univ., New Haven, CT, USA |
Аффилиация |
P W Jones; Dept. of Appl. Phys., Yale Univ., New Haven, CT, USA |
Аффилиация |
B B Mandelbrot; Dept. of Appl. Phys., Yale Univ., New Haven, CT, USA |
Выпуск |
8 |