منابع مشابه
Doubling Measures, Monotonicity, and Quasiconformality
We construct quasiconformal mappings in Euclidean spaces by integration of a discontinuous kernel against doubling measures with suitable decay. The differentials of mappings that arise in this way satisfy an isotropic form of the doubling condition. We prove that this isotropic doubling condition is satisfied by the distance functions of certain fractal sets. Finally, we construct an isotropic...
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where L(x,r) := sup{|f (x)−f (y)| : |x−y| ≤ r}, l(x,r) := inf {|f (x)−f (y)| : |x−y| ≥ r}, and by |x− y| we denote the distance between x and y in a metric space. We say that f is quasiconformal if there is a constant H so that H(x)≤H for every x ∈X. This infinitesimal condition is easy to state but not easy to use. For instance, it is not clear from the definition if the inverse mapping is qua...
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Old age is one of the most crucial stages of human development that encompasses the dynamics of biological processes, perception, growth and development and maturity, as a natural process of life. The elderly as one of the vulnerable groups, they face different biological, psychological and social needs. As the population gets older, the elderly will need more support in their daily activities,...
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This paper mirrors an invited talk to ISCISC 2011. It is not a conventional paper so much as an essay summarizing thoughts on a little-talked-about subject. My goal is to intermix some introspection about definitions with examples of them, these examples drawn mostly from cryptography. Underpinning our discussion are two themes. The first is that definitions are constructed. They are i...
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این تحقیق جهت بررسی تأثیر ترجمه در برابر ایجاد ارتباط بین لغات و ارائه معانی بر بازیابی واژگان در میان زبان آموزان متوسط ایرانی انجام شده است. به این منظور سه گروه کامل از دانش آموزان سطح متوسط که کتاب اینترچنج3 را مطالعه می کردند پس از انجام تست استاندارد مهارت سنجی انتخاب شدند. در ابتدا محقق آنها را به دو گروه آزمایشی و یک گروه کنترل یا شاهد تقسیم نمود و درمرحله بعد از کلیه دانش آموزان در سه ...
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ژورنال
عنوان ژورنال: Inventiones Mathematicae
سال: 1995
ISSN: 0020-9910,1432-1297
DOI: 10.1007/bf01241122