منابع مشابه
A note on groups of intermediate growth
It was proved by R. I. Grigorchuk in 1983 that there exist groups which are neither of polynomial nor of exponential growth. Their growth is called intermediate. We show that every group of intermediate growth has either a residually finite quotient of intermediate growth or a simple section of intermediate growth.
متن کاملFingernail Configuration
BACKGROUND A number of conditions can alter a person's fingernail configuration. The ratio between fingernail width and length (W/L) is an important aesthetic criterion, and some underlying diseases can alter the size of the fingernail. Fingernail curvature can be altered by systemic disorders or disorders of the fingernail itself. Although the shape and curvature of the fingernail can provide ...
متن کاملA Note on Percolation in a VoronoiCompetition { Growth
We study a model in which two entities (e.g., plant species, political ideas, ...) compete for space on a plane, starting from randomly distributed seeds, and growing deterministically at possibly diierent rates. An entity which forms an innnite cluster is considered to dominate over the other (which then cannot percolate). We analyze the occurence of such a form of domination in situations in ...
متن کاملA Note on: Alternative Quantitative Measurements of Growth and Welfare for Policy Analysis
Measuring development, growth and welfare is an important issue in normative and positive economics.The issue is more critical in developing economies where a good statistical indicator of income, livingstandard or poverty is crucial for decision-makers in corporate, government, non-government andinternational organizations in their for-profit or non-profit plans to promote business and trade, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Investigative Dermatology
سال: 1953
ISSN: 0022-202X
DOI: 10.1038/jid.1953.5