Efficient Euclidean division algorithms in some degree 8 number rings The arithmetic of number rings is a difficult topic in computational number theory. In particular, one simple question is hard to answer: can one perform Euclidean division in a given
A tale of groups and rabbits: efficient 4-dimensional isogeny computations for cryptographic group actions In the transition to post-quantum cryptography, cryptographic group actions can offer a modularity close to pre-quantum discrete logarithm problems. Not only can this modularity be used
We establish a convergence result for the approximation of low-regularity solutions to time-dependent PDE systems that have an involution structure similar to Maxwell's equations and the linear wave equations. The approximation is based on an explicit Runge--Kutta (ERK) time-stepping and