David Hobby

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20112025

most citedClassification of Multidimensional Darboux Transformations: First Order and Continued Type

18 citations · 19 across the 8 of their papers we have counts for

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math.NT2017

Sums of finitely many distinct rationals

Donald Silberger, Sylvia Silberger, David Hobby

$E$ denotes the family of all finite nonempty $S \subseteq N := {1, 2, \dots}$ , and $E (X) := E \cap {S : S \subseteq X}$ when $X \subseteq N$ . Simila…

math.NT2015★ 1 cited

Roots with common tails

Alexandra Hobby, David Hobby

Some cubic polynomials over the integers have three distinct real roots with continued fractions that all have the same common tail. We characterize the polynomials for which this…