Open Access
1928 Differential geometry of conics in the projective space of three dimensions.—III. Differential invariant forms in the theory of a two-parameter family of conics (second report)
Akitsugu Kawaguchi
Proc. Imp. Acad. 4(7): 341-344 (1928). DOI: 10.3792/pia/1195581690
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Vol.4 • No. 7 • 1928
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