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On catching a moving particle by narrow strips. (English) Zbl 0586.51017
For a particle moving in a Euclidean plane the following theorem is proved and commented: For any real positive numbers d and k there exists a d-strip such that the time the particle spend there is at least k. (A d-strip is the set of points at a distance not greater than d/2 from a straight line.)
Reviewer: Dan Brânzei
MSC:
51M05Euclidean geometries (general) and generalizations
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