Reference : Universal families of extensions of coherent systems
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Physical, chemical, mathematical & earth Sciences : Mathematics
http://hdl.handle.net/10993/11488
Universal families of extensions of coherent systems
English
Tommasini, Matteo mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Mathematics Research Unit >]
2013
1
29
No
[en] universal families ; extensions ; coherent systems ; cohomology and base change for families of coherent system
[en] We prove a result of cohomology and base change for families of
coherent systems over a curve. We use that in order to prove the existence
of (non-split, non-degenerate) universal families of extensions for families of
coherent systems (in the spirit of the paper "Universal families of extensions"
by H. Lange). Such results will be applied in subsequent papers in order to
describe the wallcrossing for some moduli spaces of coherent systems.
Researchers
http://hdl.handle.net/10993/11488
http://arxiv.org/abs/1212.0125

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