The degrees of categoricity above 0’’
Consider the ordering \(\omega\) of the natural numbers \(0\leq 1\leq 2\leq 3\leq\dots\). We can build an isomorphic order \(\mathcal B\) (for bad) as follow...
Consider the ordering \(\omega\) of the natural numbers \(0\leq 1\leq 2\leq 3\leq\dots\). We can build an isomorphic order \(\mathcal B\) (for bad) as follow...
Update 30.07.2025: There was a mistake in the main theorem claiming that for a degree \(\mathbf d >HYP\), \(\mathbf d\) computes a copy of \(\omega_1^{\ma...
My newest preprint Degree spectra of analytic complete equivalence relations just appeared on arXiv.
I just created this new homepage with all my professional information. I hope that you find it interesting and useful. I appreciate feedback, just write me a...