Interleaving: Difference between revisions
| Line 112: | Line 112: | ||
=> 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 ( | Case (a): ('''V''', '''W''') = ('''X''', '''Y''') | ||
Case ( | Case (b): ('''V''', '''W''') = ('''X''', '''Z''') (('''Y''', '''Z''') is similar) | ||
Case ( | Case (c): ('''V''', '''W''') = ('''Z''', '''X''') (('''Z''', '''Y''') is similar) | ||
== Generalizations == | == Generalizations == | ||