论文信息 - Nested sets and Jeffrey-Kirwan residues

Nested sets and Jeffrey-Kirwan residues

For the complement of a hyperplane arrangement we construct a dual homology basis to the no-broken-circuit basis of cohomology. This is based on the theory of wonderful embeddings and nested sets developed in [4]. Our result allows us to express the so-called Jeffrey-Kirwan residues in terms of integration on some explicit geometric cycles.

Corrado De Concini | Claudio Procesi | C. Procesi | C. Concini

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