Counting the number of bounded domains separated by hyperplanes

Hiroshima journal of mathematics education Volume 7 Page 55-62 published_at 1999-03
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Title ( eng )
Counting the number of bounded domains separated by hyperplanes
Creator
Source Title
Hiroshima journal of mathematics education
Volume 7
Start Page 55
End Page 62
Abstract
When some hyperplanes H_1, ..., H_m of the n-dimensional Euclidean space R^n are given in general position, Schläfli has determined the number of the bounded connected components in R^n - ∪^m_i = _1H_i, the complementary set of the union of the hyperplanes. It is equal to the binomial coefficient ((m-1)/n), which is also equal to the number of vertices which are the intersections of n hyperplanes in H_1, ..., H_<m-1>. Although Schläfli's proof is implicit and intuitive, the fact reflects an interesting aspect concerning configurations of hyperplanes. We clarify how the condition of general position works, and re-prove the fact in all of its details.
NDC
Education [ 370 ]
Language
eng
Resource Type departmental bulletin paper
Publisher
Department of Mathematics Education, Faculty of Education, Hiroshima University
Date of Issued 1999-03
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 0919-1720
[NCID] AN10444573