On wall-crossing invariance of certain sums of Welschinger numbers
arXiv:2203.10503 · doi:10.1007/s00029-023-00838-x
Abstract
We continue our quest for real enumerative invariants not sensitive to changing the real structure and extend the construction we uncovered previously for counting curves of anti-canonical degree on del Pezzo surfaces with to curves of any anti-canonical degree and on any del Pezzo surfaces of degree .
25 pages, 1 figure. Updated: a numerical error in Table to Proposition 6.2.1 is corrected and commented in a footnote. The same error exists in the journal version: DOI https://doi.org/10.1007/s00029-023-00838-x