Map germs are the local models of mappings between algebraic varieties or manifolds, studied in arbitrarily small neighbourhoods of a point. Algebraic geometry provides powerful tools for ...
Harmonic map theory investigates smooth mappings between Riemannian manifolds that minimise or extremise an energy functional. Originating in the mid-twentieth century, it unites techniques from ...
Henry Segerman and Saul Schleimer paint beautiful shadows based on the maths of stereographic projection, a method originally used by cartographers to map the Earth Like a Halloween pumpkin, the ...
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