In the lecture we will study a particular pair of 4 - dimensional X and Y and review the current state of art.
Of course we can continue this line of thought: 4 - dimensional space, for a Like geometry, topology is a branch of mathematics which studies.
Program ==November 21 (Fri)== Akio Kawauchi (Osaka City University) Smooth unknotting of a ribbon surface-knot.
March: 4-dimensional topology
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|4-dimensional topology||4-carboxymethyl-4-hydroxyisocrotonolactone lyase (decyclizing)|