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Symbolic links in the Open Directory Project
We present a study to develop an improved understanding of symbolic links in web directories. A symbolic link is a hyperlink which makes a directed connection from a webpage along one path through a directory to a page along another path. While symbolic links are ubiquitous in web directories such as Yahoo!, they are under-studied and, as a result, their uses are poorly understood. A cursory an...
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Let M be an oriented 3-dimensional manifold. By a result of Giroux [6] there is a one-to-one correspondence between open book decompositions of M (up to stabilization) and contact structures on M (up to isotopy). In [5] Etnyre and Ozbagci consider three invariants associated with a fixed contact structure defined in terms of all open book decompositions supporting it: (1) the support genus, whi...
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ژورنال
عنوان ژورنال: Nature
سال: 1981
ISSN: 0028-0836,1476-4687
DOI: 10.1038/294396e0