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Man-Duen Choi - Can an acute-angled cone be embedded in a right-angled cone?
| MAN-DUEN CHOI, Department of Mathematics, University of Toronto, Toronto, Ontario M5S 3G3, USA | |
| Can an acute-angled cone be embedded in a right-angled cone? |
The title question is non-trivial even in the low dimensional cases. Here comes the notion of sums of squares linking different branches of mathematics. In particular, we see into the structure of different sorts of positive operators.
eo@camel.math.ca
