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March 17, 2021 Limit shape of partitions via bijections Igor Pak, UCLA

Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent

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Page 1: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent

March 17, 2021

Limit shape of partitions via bijections

Igor Pak, UCLA

Page 2: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent
Page 3: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent
Page 4: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent
Page 5: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent
Page 6: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent
Page 7: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent
Page 8: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent

Limit shapes

Page 9: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent

(P., 2004)

Page 10: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent

(P., 2004)

Page 11: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent

(P., 2004)

Page 12: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent

Is Sylvester’s bijection a good bijection?

Page 13: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent

Pak-Postnikov version of Sylvester’s bijection (1998)

Page 14: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent
Page 15: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent

(Vershik, 1996)

Page 16: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent

(Vershik, 1996)

Page 17: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent
Page 18: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent
Page 19: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent

New results (some special cases)

Page 20: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent

New results (some special cases)

Page 21: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent
Page 22: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent
Page 23: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent

Limit shape of Lebesgue partitions

Page 24: Limit shape of partitions via bijectionspak/lectures/Slides/Part-talk... · 2021. 3. 17. · Let An denote the set of partitions of size n into distinct parts which are congruent