Une -application non-immersive qui possède la propriété universelle des immersions
Tóm tắt
Từ khóa
Tài liệu tham khảo
R.Narasimhan, Analysis on Real and Complex Manifolds. Paris 1968.
J. Boman, Differentiability of a function and of its compositions with functions of one variable. Math. Scand.20, 249–268 (1967).
J.Riordan, An Introduction to Combinatorial Analysis. New York 1958.