2 papers
math.AG2026
K-rings of smooth toric varieties via piecewise-exponential functions
Melody Chan, Emily Clader, Caroline Klivans +1
We describe an explicit presentation of the ring of integral piecewise-exponential functions on a unimodular fan as a quotient of the Stanley-Reisner ring of the fan. This gives ri…
math.CO2025
Piecewise-exponential functions and Ehrhart fans
Melody Chan, Emily Clader, Caroline Klivans +1
This paper studies rings of integral piecewise-exponential functions on rational fans. Motivated by lattice-point counting in polytopes, we introduce a special class of unimodular…