Lloyd West {page under construction}
lwest [at] gc.cuny.edu
I am a Ph.D candidate in mathematics, working under the supervision of Lucien Szpiro at the CUNY Graduate Center.  
I study number theory and algebraic geometry. My current research work is in the area of arithmetic dynamics – a field at the intersection of number theory, algebraic geometry and complex dynamics.  
I have taught mathematics, at different levels, in the USA, China and England. I maintain a blog of my jottings – on mathematics and education – here. 
Lloyd West
Teaching
Current  This year I have a
Dissertation Fellowship, so I shall not be teaching. Check
out my blog, though, for some education related
articles. 

Past Teaching  
201314  Quantitative Reasoning Fellow at Guttman College. I worked on developing curricula and teaching materials to support the teaching of quantitative literacy and statistics. You can read some reflections on the experience here.  
201113 
Precalculus with Elements of Calculus at Baruch College.
Course materials on BlackBoard. Syllabus here.  
2012  Summer  Minicourse on Class Field Theory
in the GC Graduate Mathematics Summer
School.
Lecture notes: here (caveat lector!). 
201011  Spring  Precalculus with Elements of Calculus at Medgar Evers College. 
Fall  Statistics at Medgar Evers College. Precalculus with Elements of Calculus at Medgar Evers College. 

2009  Summer  Minicourse on Galois Theory
at Linyi Normal University, Shandong,
China.
Blogpost: here. Report: here. 
Lloyd West
Research
August 2014  The Moduli Space of Cubic Rational Maps  pdf arxiv:1408.3247 
We construct the moduli space, M_d, of degree d rational maps on \mathbb{P}^1 in terms of invariants of binary forms. We apply this construction to give explicit invariants and equations for M_3. Using classical invariant theory, we give solutions to the following problems: (1) explicitly construct, from a moduli point P \in M_d(k), a rational map \phi with the given moduli; (2) find a model for \phi over the field of definition (i.e. explicit descent). We work out the method in detail for the cases d=2,3. 