Secrets of a double-doughnut
نویسندگان
چکیده
منابع مشابه
Deening a `doughnut' Made Diicult
Qualitative descriptions of spatial properties and relationships, and qualitative spatial reasoning, are of fundamental importance in human problem-solving: even where we use quantitative approaches, these depend on an accompanying qualitative representation. The work described is aimed at for-malising some topological aspects of qualitative spatial description and reasoning. The paper continue...
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ژورنال
عنوان ژورنال: Nature
سال: 1994
ISSN: 0028-0836,1476-4687
DOI: 10.1038/371557a0