Volume 25, Issue 3 Michal Bathory Sharp nonlinear estimates for multiplying derivatives of positive definite tensor fields Downloads Abstract PDF Full article PDF DOI { copied = true; setTimeout(() => copied = false, 2000) })" :aria-label="copied ? 'DOI copied' : 'Copy DOI'" :title="copied ? 'Copied' : 'Copy DOI'" > Find all available articles from these authors Michal Bathory Find more articles with the same keywords non-linear gradient estimate symmetric positive definite tensor field logarithmic convexity matrix calculus Find more articles with the same subject classes 35A23 15A69 15A16 76A10