Interleaving: Difference between revisions
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=> 2'''δ''' + '''W''' = ‖''s''‖ + '''V'''. If this linear relation is trivial, the third letter '''U''' occurs an even number of times in ''s'' | => 2'''δ''' + '''W''' = ‖''s''‖ + '''V'''. If this linear relation is trivial, the third letter '''U''' occurs an even number of times in ''s'' | ||
Case (1): ('''V''', '''W''') = ('''X''', '''Y''') | |||
Case (1): ('''V''', '''W''') = ('''X''', '''Z''') (('''Y''', '''Z''') is similar) | |||
Case (1): ('''V''', '''W''') = ('''Z''', '''X''') (('''Z''', '''Y''') is similar) | |||
== Generalizations == | == Generalizations == | ||