193 citations · 363 across the 59 of their papers we have counts for
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cs.CG2015
Lower bounds on the dilation of plane spanners
Adrian Dumitrescu, Anirban Ghosh
(I) We exhibit a set of 23 points in the plane that has dilation at least , improving the previously best lower bound of for the worst-case dilation of plane spann…
math.CO2015
Problems on Track Runners
Adrian Dumitrescu, Csaba D. Tóth
Consider the circle of length 1 and a circular arc of length . It is shown that there exists , and a schedule for runners along…
cs.CG2015
Constant-Factor Approximation for TSP with Disks
Adrian Dumitrescu, Csaba D. Tóth
We revisit the traveling salesman problem with neighborhoods (TSPN) and present the first constant-ratio approximation for disks in the plane: Given a set of disks in the plane…