Heinrich Friedrich Karl Ludwig Burkhardt (15 October 1861 – 2 November 1914) was a German mathematician.
He famously was one of the two examiners of Albert Einstein's PhD thesis Eine neue Bestimmung der Moleküldimensionen.
Of Einstein's thesis he stated: "The mode of treatment demonstrates fundamental mastery of the relevant mathematical methods" and "What I checked, I found to be correct without exception."
Author: Jahresbericht der Deutschen Mathematiker-Vereinigung 1915 Source: Jahresbericht der Deutschen Mathematiker-Vereinigung 1915 License: CC-PD-Mark PD Old