Concept
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Related publications (5)
Automorphisms of even unimodular lattices and equivariant Witt groups
We characterize the irreducible polynomials that occur as the characteristic polynomial of an automorphism of an even unimodular lattice of a given signature, generalizing a theorem of Gross and McMullen. As part of the proof, we give a general criterion i ...
EUROPEAN MATHEMATICAL SOC2020Breaking `128-bit Secure' Supersingular Binary Curves
The discrete logarithm problem (DLP) in finite fields of small characteristic recently enjoyed a dramatic series of breakthrough results and computational records, with its (heuristic) complexity dropping from subexponential to quasi-polynomial. While thes ...
2014