Prefer a chat interface with context about you and your work?
On the tractability of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e164" altimg="si11.svg"><mml:mrow><mml:mo>(</mml:mo><mml:mi>k</mml:mi><mml:mo>,</mml:mo><mml:mi>i</mml:mi><mml:mo>)</mml:mo></mml:mrow></mml:math>-coloring