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math.NT2013★ 2 cited
Estimating constellations among primes - I. Uniformity
Fred B. Holt, Helgi Rudd
A few years ago we identified a recursion that works directly with the gaps among the generators in each stage of Eratosthenes sieve. This recursion provides explicit enumerations…
math.CO2013
Observations on the Perturbed Wedge
Fred B. Holt
Santos' construction of the first known counterexample to the Hirsch conjecture, for bounded polytopes, follows the strategy of first finding a counterexample to the nonrevisiting…
math.CO2013
Two Observations on the Perturbed Wedge
Fred B. Holt
Francisco Santos has described a new construction, per- turbing apart a non-simple face, to offer a counterexample to the Hirsch Conjecture. We offer two observations about this pe…