DRAFT A CNF Transformation for Multidimensional Grammars (2009)
David Brown, Ian Kelly, Colin Kern, Alex Lemann, Greg S
This paper explores a transformation for factoring arbitrary branching multidimensional local trees into sets of strictly 2-branching local trees, resembling the conversion to Chomsky Normal Form for...
Representing Multidimensional Trees (2008)
David Brown, Ian Kelly, Colin Kern, Alex Lemann, Greg S
This paper develops a formal definition of multidimensional trees as abstract structures in “left-child, right-sibling ” form. After developing this abstract definition, we show how it can be...
DRAFT Counting Twin Primes in Residue Classes (2006)
It is unknown whether there is an infinite number of twin primes, which are primes differing by two. Another question for which an answer is known for primes, but not for the twin primes, is how they...