Mathematica Slovaca Milan Matejdes The projective properties of the extreme path derivatives Mathematica Slovaca, Vol. 42 (1992), No. 4, 451--464 Persistent URL: http://dml.cz/dmlcz/133060 Terms of use: © Mathematical Institute of the Slovak Academy of Sciences, 1992 Institute of Mathematics of the Academy of Sciences of the Czech Republic provides access to digitized documents strictly for personal use. Each copy of any part of this document must contain these Terms of use. This paper has been digitized, optimized for electronic delivery and stamped with digital signature within the project DML-CZ: The Czech Digital Mathematics Library http://project.dml.cz