52 citations · 217 across the 45 of their papers we have counts for
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math.RA2015★ 5 cited
Adjoining a universal inner inverse to a ring element
George M. Bergman
Let be an associative unital algebra over a field let be an element of and let We obtain normal forms for elements of and…
math.CO2015★ 3 cited
On Vaughan Pratt's crossword problem
George M. Bergman, Pace P. Nielsen
Vaughan Pratt has introduced objects consisting of pairs where is a set and a set of subsets of such that (i) contains and (ii) if is…