activity
20122021
most citedTransversals in Latin arrays with many distinct symbols

4 citations · 12 across the 9 of their papers we have counts for

collaborators

11 papers

cs.DS2021

A Faster Algorithm for Maximum Independent Set on Interval Filament Graphs

Darcy Best, Max Ward

We provide an algorithm requiring only time to compute the maximum weight independent set of interval filament graphs. This also implies an algorithm to compute t…

math.CO2019

Parity of transversals of Latin squares

Darcy Best, Ian M. Wanless

We introduce a notion of parity for transversals, and use it to show that in Latin squares of order , the number of transversals is a multiple of 4. We also demonstrate…

math.CO2019

Small Latin arrays have a near transversal

Darcy Best, Kyle Pula, Ian M. Wanless

A Latin array is a matrix of symbols in which no symbol occurs more than once within a row or within a column. A diagonal of an array is a selection of cells taken…

math.CO2018★ 4 cited

What did Ryser Conjecture?

Darcy Best, Ian M. Wanless

Two prominent conjectures by Herbert J. Ryser have been falsely attributed to a somewhat obscure conference proceedings that he wrote in German. Here we provide a translation of th…

math.CO2017

Covers and partial transversals of Latin squares

Darcy Best, Trent Marbach, Rebecca J. Stones +1

We define a cover of a Latin square to be a set of entries that includes at least one representative of each row, column and symbol. A cover is minimal if it does not contain any s…

math.CO2016★ 4 cited

Transversals in Latin arrays with many distinct symbols

Darcy Best, Kevin Hendrey, Ian M. Wanless +2

An array is row-Latin if no symbol is repeated within any row. An array is Latin if it and its transpose are both row-Latin. A transversal in an array is a selection of…

math.CO2013★ 2 cited

Mutually Unbiased Weighing Matrices

Darcy Best, Hadi Kharaghani, Hugh Ramp

Inspired by the many applications of mutually unbiased Hadamard matrices, we study mutually unbiased weighing matrices. These matrices are studied for small orders and weights in b…

math.CO2012

Unbiased complex Hadamard matrices and bases

Darcy Best, Hadi Kharaghani

We introduce mutually unbiased complex Hadamard (MUCH) matrices and show that the number of MUCH matrices of order 2n, n odd, is at most 2 and the bound is attained for n = 1,5,9.…

math.CO2012

On unit weighing matrices with small weight

Darcy Best, Hadi Kharaghani, Hugh Ramp

We study the structure of unit weighing matrices of order n and weights 2, 3 and 4. We show that the number of inequivalent unit weighing matrices UW(n,4) depends on the number of…

math.NT2012★ 1 cited

Linear relations of zeroes of the zeta-function

Darcy Best, Tim Trudgian

This article considers linear relations between the non-trivial zeroes of the Riemann zeta-function. The main application is an alternative disproof to Mertens' conjecture. We show…

math.CO2012★ 1 cited

Turyn-type sequences: Classification, Enumeration and Construction

D. Best, D. Z. Djokovic, H. Kharaghani +1

Turyn-type sequences, TT(n), are quadruples of {+,-1}-sequences (A;B;C;D), with lengths n,n,n,n-1 respectively, where the sum of the nonperiodic autocorrelation functions of A,B an…