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Gjergji Zaimi
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And what are it's applications? A conceptual explanation would be great! Is there an expository note about this somewhere?

Some references have already appeared in the answers and comments below. To make the question more specific, classical RSK has combinatorial interpretations in terms of symmetric functions, for example. If RSK gives the Cauchy identity: $$\sum_{\lambda} s _{\lambda}(x)s _{\lambda}(y)=\prod _{i,j} \frac{1}{1-x_iy_j}$$ what is an analogous interpretation for tropical RSK? (From some buzzwords I've heard in a few talks recently, it probably has something to do with shifted or elliptic Schur functions.)

And what are it's applications? A conceptual explanation would be great! Is there an expository note about this somewhere?

And what are it's applications? A conceptual explanation would be great! Is there an expository note about this somewhere?

Some references have already appeared in the answers and comments below. To make the question more specific, classical RSK has combinatorial interpretations in terms of symmetric functions, for example. If RSK gives the Cauchy identity: $$\sum_{\lambda} s _{\lambda}(x)s _{\lambda}(y)=\prod _{i,j} \frac{1}{1-x_iy_j}$$ what is an analogous interpretation for tropical RSK? (From some buzzwords I've heard in a few talks recently, it probably has something to do with shifted or elliptic Schur functions.)

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Gjergji Zaimi
  • 85.6k
  • 4
  • 236
  • 402

What is the tropical Robinson-Schensted-Knuth correspondence?

And what are it's applications? A conceptual explanation would be great! Is there an expository note about this somewhere?