Stringy invariants of normal surfaces
| dc.creator | Veys, Willem | |
| dc.date | 2002-05-28 | |
| dc.date.accessioned | 2026-07-07T04:48:45Z | |
| dc.date.available | 2026-07-07T04:48:45Z | |
| dc.description | The stringy Euler number and E-function of Batyrev for log terminal singularities can in dimension 2 also be considered for a normal surface singularity with all log discrepancies nonzero in its minimal log resolution. Here we obtain a structure theorem for resolution graphs with respect to log discrepancies, implying that these stringy invariants can be defined in a natural way, even when some log discrepancies are zero, and more precisely for all normal surface singularities which are not log canonical. We also show that the stringy E-functions of log terminal surface singularities are polynomials (with rational powers) with nonnegative coefficients, yielding well defined (rationally graded) stringy Hodge numbers. | |
| dc.description | 22 pages, to appear in J. Alg. Geom | |
| dc.identifier | https://arxiv.org/abs/math/0205293 | |
| dc.identifier | http://arxiv.org/abs/math/0205293 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/64172 | |
| dc.subject | Algebraic Geometry | |
| dc.subject | 14B05; 14J17; 32S50 | |
| dc.title | Stringy invariants of normal surfaces | |
| dc.type | text |