Generalized chromatic functions and its applications

Zoom talk 

We define vertex-colourings for edge-coloured digraphs, which unify the theory of $P$-partitions and proper vertex-colourings of graphs. Furthermore, we use our vertex-colourings to define generalized chromatic functions, which merge the chromatic symmetric and quasisymmetric functions and generating functions of $P$-partitions. We also discuss the relations between generalized chromatic functions, Schur functions in noncommuting variables, and the well-known Stanley-Stembridge $(3+1)$-free conjecture. 

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https://ubc.zoom.us/j/68116853959?pwd=cHU5dUpZTGpDeUh2aS9teDVycW9nZz09

Meeting ID: 681 1685 3959
Passcode: 310805