For subschemes in projective space liaison arises from the geometric notion of linkage. Roughly speaking, two subschemes are directly linked if their union is a complete intersection. The equivalence relation generated by linkage is called liaison. One can also define a finer equivalence relation called biliaison (or even liaison): two subschemes are in the same biliaison class if they are related to each other by an even number of direct links. Thus, in some sense, a biliaison class is "half" of a liaison class. It turns out that biliaison classes are the right object to study in the context of liaison.
Biliaison Classes of Reflexive Sheaves(1995 Nov 24).
Autori: | Buraggina, Antonella |
Titolo: | Biliaison Classes of Reflexive Sheaves |
Relatore/i esterni: | Ellia, Philippe; Walter, Charles |
Data di pubblicazione: | 24-nov-1995 |
Appare nelle tipologie: | 8.1 PhD thesis |
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File | Descrizione | Tipologia | Licenza | |
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1963_5649_PhD_Buraggina_Antonella.pdf | Tesi | Non specificato | Open Access Visualizza/Apri |