I am a Lecturer in Pure Mathematics in the School of Mathematical Sciences at Queen Mary University of London.

Office: B53, Mathematics Building, Mile End campus (number 4 on
this
map)

Telephone:
020 7882 5520

Email: `a.fink@qmul.ac.uk`

Office hours: see my entry on the School's pages. Or email for an appointment.

Here is my CV.

Skip to: Teaching Administration Activities Group Research Publications

In Semester B, I am teaching
**MTH4104, Introduction to Algebra**.

I am also running two tutorials for
*MTH5103, Complex Variables*:

- Thursday 3pm, BR 3.01
- Thursday 4pm, GO Jones UG 1

I am the Communications Coordinator for the School of Mathematics, responsible for gathering news of academic relevance for the Maths website and School newsletter among other fora. Please let me know if you have noteworthy publications, public appearances, new collaborations, long-term visitors whom others might want to talk to, …

I am organising the Queen Mary algebra seminar this semester. (Last semester the organiser was Matt Fayers.)

FPSAC will be held at Queen Mary in 2017.

I have one current PhD student:

- Amanda Cameron (started January 2014)

I have also hired a postdoctoral research assistant, to work on problems including parameter spaces of varieties and tropical scheme theory, who will begin in July 2015.

I belong to Queen Mary's algebra, combinatorics, and geometry and analysis research groups.

My research interests are principally in
algebraic combinatorics, especially where commutative algebra
or algebraic geometry apply; matroid theory and tropical geometry
have been recent themes.
I have been awarded EPSRC grant EP/M01245X/1
*Algebra and geometry of matroids*, to commence in the fall of 2015.

Here is a research statement from a couple years ago.

**Journal articles, conference papers, preprints**-
- with Luca Moci,
*Structure of matroids over a valuation ring*, in preparation. Slides. - with Jenna Rajchgot and Seth Sullivant,
*Matrix Schubert varieties and Gaussian graphical models*, in preparation. *A generating function method for impartial games*, in preparation. Slides.- Andrew Berget and Alex Fink,
*Equivariant K-classes of matrix orbit closures*, arXiv:1306.1810 (pdf). - Alex Fink and Felipe Rincón,
*Stiefel tropical linear spaces*, arXiv:1305.6329 (pdf). - Alex Fink and Luca Moci,
*Matroids over a ring*, to appear in Journal of the European Mathematical Society. arXiv:1209.6571 (pdf). Slides: motivation, some details. - Alex Fink,
*Boij-Söderberg expansions of matroid Stanley-Reisner rings*, unpublished note. - Alex Fink, Aviezri Fraenkel, Carlos Santos,
*Lim is not slim*, International Journal of Game Theory**43**issue 2 (2014), 269–281. doi:10.1007/s00182-013-0380-z. Online at IJGT. - Alex Fink,
*Lattice games without rational strategies*, Journal of Combinatorial Theory, Series A**119**(2012), 450–459. doi:10.1016/j.jcta.2011.10.005. arXiv:1106.1883 (pdf). Slides. - Alex Fink and David E Speyer,
, Duke Math. J.*K*-classes of matroids and equivariant localization**161**no. 14 (2012), 2699–2723. arXiv:1004.2403 (pdf). Slides. - Alex Fink,
*Tropical cycles and Chow polytopes*, Beiträge zur Algebra und Geometrie**54**no. 1 (2013), 13–40. Online at Beiträge. arXiv:1001.4784 (pdf). Slides. Video of the talk, MSRI, 16 October 2009. - Harm Derksen and Alex Fink,
*Valuative invariants for polymatroids*, Advances in Mathematics**225**no. 4 (2010), 1840–1892. doi:10.1016/j.aim.2010.04.016. arXiv:0908.2988 (pdf). Slides. - Alex Fink,
*The binomial ideal of the intersection axiom for conditional probabilities*, J. of Algebraic Combinatorics**33**issue 3 (2011), 455–463. doi:10.1007/s10801-010-0253-5. arXiv:0902.1495 (pdf). Slides. - Alex Fink, Richard Nowakowski, Aaron Siegel, David Wolfe,
*Toppling conjectures*, to appear in Games of No Chance 4, MSRI Publications volume 63. - Alex Fink and Benjamin Iriarte Giraldo,
*Bijections between noncrossing and nonnesting partitions for classical reflection groups*, Portugaliae Mathematicae**67**fasc. 3 (2010), 369–401. arXiv:0810.2613 (pdf). - Alex Fink, Richard Guy and Mark Krusemeyer,
*Partitions with parts appearing at most thrice*, Contributions to Discrete Math.**3**(2008), #79. - Federico Ardila, Alex Fink and Felipe Rincón,
*Valuations for matroid polytope subdivisions*, Canadian Journal of Mathematics, published electronically on July 29, 2010. doi:10.4153/CJM-2010-064-9. arXiv:0710.4424 (pdf). - Alex Fink, Jörg Denzinger, and John Aycock,
*Extracting NPC behavior from Computer Games using Computer Vision and Machine Learning Techniques*, IEEE Symposium on Computational Intelligence and Games, 2007, 24–31. - Alex Fink and Richard Guy,
*The number-pad game*, Coll. Math. J.**38**(2007), 260–264. - Alex Fink,
*A generalization of an IMO problem*, Integers, Electronic Journal of Combinatorial Number Theory**6**(2006), #A17. - Alex Fink and Bill Sands,
*Rationals whose sum equals the reciprocal of their product*, Crux Math.**30**(2004), 292–295.

- with Luca Moci,
**Doctoral thesis**- My thesis was titled
*Matroid polytope subdivisions and valuations*. Aside from an introduction all its content appears in the papers above. **Expository writing, manuscripts**-
- Alex Fink and Richard Guy,
*Rick's Tricky Six Puzzle: S*, Math. Magazine_{5}sits specially in S_{6}**82**no. 2 (April, 2009). See also Doug Ensley's interactive supplement with implementations of the puzzle. *If two were three, what would Hex be?*, 2008, for Gathering for Gardner 8. See also my other page on this game, with an implementation.*Patulous pegboard polygons*, with Derek Kisman and Richard Guy, 2006, for Gathering for Gardner 7, in*Mathematical wizardry for a Gardner*, AK Peters, 2009.

- Alex Fink and Richard Guy,