Robuta

https://portal.mardi4nfdi.de/wiki/Publication:2119380 Sums of squares and quadratic persistence on real projective varieties - MaRDI portal sums of squares projective varieties quadratic persistence real https://ecommons.cornell.edu/entities/publication/c7d89d35-ed33-4c1d-8c27-8a3df4fe78e5 Notes on Calculating Sums of Squares in Analyses of Variance of Unbalanced Data sums of squares unbalanced data notes calculating analyses https://arxiv.org/abs/2202.13729 [2202.13729] Second order conditions to decompose smooth functions as sums of squares Abstract page for arXiv paper 2202.13729: Second order conditions to decompose smooth functions as sums of squares sums of squares second order smooth functions conditions decompose