This is an academic webpage for me, Calliope Ryan-Smith.
Articles are presented in reverse order by initial release.
Fun fact: calliope.mx redirects to this page!

Research interests: the theory of forcing and symmetric extensions, the axiom of choice, cardinal characteristics, large cardinals, and intersections of model theory and set theory.

While I strive to keep the data on this website accurate, this is not guaranteed.

Papers

1. Eccentricity, extendable choice and descending distributive forcing.
   2025. arXiv:2506.11607 (pdf).
2. Local reflections of choice.
   Acta Math. Hung. 176 (2025), no. 1, 244–257.
   doi.org/10.1007/s10474-025-01533-3 (pdf).
   arXiv:2412.13785 (pdf). MR4936591.
3. Proper classes of maximal θ-independent families from large cardinals.
   2024. arXiv:2408.10137 (pdf).
4. Upwards homogeneity in iterated symmetric extensions.
   (with J. Schilhan and Y. Wei) J. Symb. Log. Online-first version (2025).
   doi.org/10.1017/jsl.2025.10148 (pdf).
   arXiv:2405.8639 (pdf).
5. String dimension: VC dimension for infinite shattering.
   2024. arXiv:2402.18250 (pdf).
6. The Hartogs–Lindenbaum spectrum of symmetric extensions.
   Math. Log. Quart. 70 (2024), no. 2, 210–223.
   doi.org/10.1002/malq.202300047 (pdf).
   arXiv:2309.12100 (pdf). MR4788363.
7. Which pairs of cardinals can be Hartogs and Lindenbaum numbers of a set?
   (with A. Karagila) Fund. Math. 267 (2024), no. 3, 231–241.
   doi.org/10.4064/fm231006-14-8 (pdf).
   arXiv:2309.11409 (pdf). MR4788363.
8. Stratifiable formulas are not context-free.
   Notre Dame J. Form. Log. 66 (2025), no. 3, 301–311.
   doi.org/10.1215/00294527-2024-0040 (pdf).
   arXiv:2304.10291 (pdf). MR4949932.

Thesis

• My thesis, Eccentric Sets, can be found in both print format and web format (i.e. centred).
  It is published under a CC BY-NC-SA 4.0 license.
  It is also deposited in the White Rose eTheses Online repository soon.

Other works

• A heavily abridged version of Maximal θ-independent families from large cardinals in one-page zine form is available here.
  For a printed version, print this file. Instructions for constructing the zine can be found at, say, https://mymodernmet.com/how-to-make-a-zine/.
• Posters presented at audiences can be found on my talks page.

Links

• My PhD student page at the University of Leeds can be found at https://eps.leeds.ac.uk/maths/pgr/9635/calliope-ryan-smith/
  
• My ORCID iD is 0000-0003-2835-4268
• My CV can be found here.
• My MathSciNet author ID is 1625058

Contact

I can be contacted at
cr638@fbi.com and so on and so forth@cantab.ac.uk

Any other business

• Minims calculator. Put in the number of minims and this will spit out all of the possible combinations of letters that those minims could represent.
• MathOverflow account. Where I dwell on MathOverflow.
• Why .mx?
• Set theory charades is here (work-in-progress).