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- Mark L. Bauer, Safuat Hamdy
- ASIACRYPT
- 2003

The best practical algorithm for class group computations in imaginary quadratic number fields (such as group structure, class number, discrete logarithm computations) is a variant of the quadratic sieve factoring algorithm. Paradoxical as it sounds, the principles of the number field sieve, in a strict sense, could not be applied to number field… (More)

- Mark L. Bauer
- Math. Comput.
- 2004

In this paper, we discuss the properties of curves of the form y3 = f(x) over a given field K of characteristic different from 3. If f(x) satisfies certain properties, then the Jacobian of such a curve is isomorphic to the ideal class group of the maximal order in the corresponding function field. We seek to make this connection concrete and then use it to… (More)

- Mark L. Bauer, Werner Wöckel, Walter J. Hofmann
- Pneumologie
- 1990

Twenty-three patients with a thymoma diagnosed in the period between 1967 and 1987, were investigated retrospectively. In all the patients, the major therapeutic procedure performed had been surgery. The most important factor for the prognosis proved to be the tumour stage established at surgery. In locally non-invasive thymomas, the long-term prognosis is… (More)

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