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YouTube

Omer Bobrowski - Random Simplicial Complexes

Hausdorff Center for Mathematics via YouTube

Overview

Explore the fascinating world of random simplicial complexes in this third lecture of a minicourse series. Delve into the random Cech complex, a higher-dimensional generalization of the random geometric graph. Learn about connectivity, formation of cycles, and emergence of "giant" connected components in this context. Compare these higher-dimensional phenomena to their lower-dimensional graph counterparts using algebraic topology and homology theory. Gain insights into the Chair Complex, D Complex, Curly Age, and Mode Theory. Examine the differences between connectivity and homological connectivity, and understand the concepts of giant components and giant cycles. Discover the duality theorem and its implications. No prior knowledge is required for this comprehensive exploration of random simplicial complexes and their applications in modern data and network analysis.

Syllabus

Introduction
Models
Chair Complex vs D Complex
Curly Age
Mode Theory
Proof
Connectivity vs homological connectivity
Giant components
Giant cycles
Theorem
Duality
Conclusion

Taught by

Hausdorff Center for Mathematics

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