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Hungary Contests
Kürschák Math Competition
1973 Kurschak Competition
2
2
Part of
1973 Kurschak Competition
Problems
(1)
d(r) = distance of the nearest lattice point from circle (O,r)
Source: 1973 Hungary - Kürschák Competition p2
10/15/2022
For any positive real
r
r
r
, let
d
(
r
)
d(r)
d
(
r
)
be the distance of the nearest lattice point from the circle center the origin and radius
r
r
r
. Show that
d
(
r
)
d(r)
d
(
r
)
tends to zero as
r
r
r
tends to infinity.
combinatorics
combinatorial geometry
lattice