I remain affiliated with the University of Sydney as an honorary associate in the School of Mathematics and Statistics.
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I am a member of the Computational Algebra research group.
Tommy Hofmann, Yinan Zhang. Valuations of p-adic regulators of cyclic cubic fields, to appear in Journal of Number Theory (pdf)
Claus Fieker, Yinan Zhang. An application of the p-adic analytic class number formula, LMS Journal of Computation and Mathematics, volume 19, issue 01, pp. 217-228 (pdf)
p-adic verification of class number computations, PhD thesis, 2013 (pdf)
An algorithm for verifying the p-part of the class group (poster), 10th Algorithmic Number Theory Symposium, University of California San Diego, July 2012 (pdf)
p-adic Computation/Verification of the class group, 56th Australian Mathematics Society Annual Meeting, University of Ballarat, September 2012 (pdf)
Verifying p-valuation of class numbers, Magma seminar, The University of Sydney, June 2013 (blackboard talk, very similar to the one below)
Verifying p-valuation of class numbers, seminar, Peking University, July 2013 (pdf)
p-adic Computation of the class group: results and analysis, 57th Australian Mathematics Society Annual Meeting, The University of Sydney, October 2013 (pdf)
Number Theory Seminar, Technische Universitat Kaisersläutern, June 2015
I was the lecturer for the Summer School course Mathematical Modelling from 2011 to 2013.
Computation time of p-adic zeta functions for selected number fields (xlsx)
Batch code used to generate the above data (you'll have to supply your own set of fields) (m)