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On the structure of minimum surfaces at the boundary

ScholarsArchive at Oregon State University

Field Value
Title On the structure of minimum surfaces at the boundary
Names Tjoelker, Cornelius Henry (creator)
Date Issued 1963-04-08 (iso8601)
Note Graduation date: 1963
Abstract In this paper we consider the behavior of certain surfaces at
certain boundary points. The surfaces under consideration satisfy
a topological definition and are of 2-dimension in 3-dimensional
Euclidean space with the boundary a finite set of straight line
segments. It is shown that the surface of minimum area with a given
boundary is locally Euclidean at all non-vertex. boundary points.
The key to the proof is a theorem in 1 which itself concerns the
behavior of a set of points under very restricted conditions. It
is shown in 1 that for almost all interior points the conditions
of the lemma are satisfied.
This paper first shows that the part of the given surface
interior to some sphere centered at any non-vertex boundary point
lies near a plane passing through the point in question. Secondly
it is shown that for any point of the surface lying in the sphere
the surface interior to any smaller neighborhood of that point lies
near a plane. "Near" here refers to nearness with respect to the
radius of the sphere or neighborhood in consideration.
From these conditions we may construct a bounded point set
satisfying the hypothesis of the aforementioned theorem. The
theorem of this paper follows immediately.
Genre Thesis/Dissertation
Topic Surfaces
Identifier http://hdl.handle.net/1957/48817

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