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JOURNALS // Zapiski Nauchnykh Seminarov POMI // Archive

Zap. Nauchn. Sem. POMI, 2003 Volume 299, Pages 162–168 (Mi znsl1121)

On equi-angular points

M. D. Kovalev

M. V. Lomonosov Moscow State University

Abstract: A point $T$ is an equi-angular point of a collection of localized vectors if all of them are seen from $T$ at an equal oriented angle. It is proved that almost all triples of vectors in the plane with fixed origins (not all of which coincide) have an euqi-angular point. As a consequence, it is proved that if a triple of vectors in the plane has no equi-angular point, then their projections to a certain axis are equal.

UDC: 514+531.8

Received: 13.01.2003


 English version:
Journal of Mathematical Sciences (New York), 2005, 131:1, 5351–5353

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© Steklov Math. Inst. of RAS, 2025