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math.NT2021
Pfister Numbers over Rigid Fields
Nico Lorenz
For certain types of quadratic forms lying in the n-th power of the fundamental ideal, we compute upper bounds and where possible exact values for the minimal number of general n-f…
math.NT2021
On the Symbol Length of Fields with finite Square Class Number
Detlev Hoffmann, Nico Lorenz
Let be a field of characteristic not with finitely many square classes. Using combinatorial arguments applied to objects related to vector spaces over finite fields, we ded…