activity
20102023
most citedNon-Archimedean and tropical theta functions

11 citations · 20 across the 9 of their papers we have counts for

collaborators

14 papers

math.AG2023★ 1 cited

Adic tropicalizations and cofinality of Gubler models

Tyler Foster, Sam Payne

We introduce adic tropicalizations for subschemes of toric varieties as limits of Gubler models associated to polyhedral covers of the ordinary tropicalization. Our main result sho…

math.NT2017★ 1 cited

Correlations between primes in short intervals on curves over finite fields

Efrat Bank, Tyler Foster

We prove an analogue of the Hardy-Littlewood conjecture on the asymptotic distribution of prime constellations in the setting of short intervals in function fields of smooth projec…

math.AG2017★ 11 cited

Non-Archimedean and tropical theta functions

Tyler Foster, Joseph Rabinoff, Farbod Shokrieh +1

We define a tropicalization procedure for theta functions on abelian varieties over a non-Archimedean field. We show that the tropicalization of a non-Archimedean theta function is…

math.AG2017

Galois actions on analytifications and tropicalizations

Tyler Foster

This paper initiates a research program that seeks to recover algebro-geometric Galois representations from combinatorial data. We study tropicalizations equipped with symmetries c…

math.NT2017

Primes in short intervals on curves over finite fields

Efrat Bank, Tyler Foster

We prove an analogue of the Prime Number Theorem for short intervals on a smooth projective geometrically irreducible curve of arbitrary genus over a finite field. A short interval…

math.AG2016

Logarithmic Picard groups, chip firing, and the combinatorial rank

Tyler Foster, Dhruv Ranganathan, Mattia Talpo +1

Illusie has suggested that one should think of the classifying group of -torsors on a logarithmically smooth curve over a standard logarithmic point as a logarithmic…

math.AG2015★ 6 cited

Degenerations of toric varieties over valuation rings

Tyler Foster, Dhruv Ranganathan

We develop a theory of multi-stage degenerations of toric varieties over finite rank valuation rings, extending the Mumford--Gubler theory in rank one. Such degenerations are const…

math.KT2015

D-structures and derived Koszul duality for unital operad algebras

Tyler Foster, Po Hu, Igor Kriz

Generalizing a concept of Lipshitz, Ozsváth and Thurs-ton from Bordered Floer homology, we define -structures on algebras of unital operads, which can also be interpreted as a g…

math.AG2015

Introduction to adic tropicalization

Tyler Foster

This is an expository article on the adic tropicalization of algebraic varieties. We outline joint work with Sam Payne in which we put a topology and structure sheaf of local topol…

math.AG2015

Hahn analytification and connectivity of higher rank tropical varieties

Tyler Foster, Dhruv Ranganathan

We show that the tropicalization of a connected variety over a higher rank valued field is a path connected topological space. This establishes an affirmative answer to a question…

math.AG2014

Rational Connectivity and Analytic Contractibility

Morgan Brown, Tyler Foster

Let k be an algebraically closed field of characteristic 0, and let f be a morphism of smooth projective varieties from X to Y over the ring k((t)) of formal Laurent series. We pro…

math.AG2012

Higher configuration operads by way of quiver Grassmannians

Tyler Foster

We introduce a construction that associates, to each finite dimensional k-vector space V, a family of projective k-varieties that comes equipped with the structure of a operad in t…

math.AG2012★ 1 cited

Limits of tropicalizations

Tyler Foster, Philipp Gross, Sam Payne

We give general criteria under which the limit of a system of tropicalizations of a scheme over a nonarchimedean field is homeomorphic to the analytification of the scheme. As an a…

math.QA2010

A Noncommutative Version of the Natural Numbers

Tyler Foster

In this note, we construct and study an algebraic system similar to the natural numbers, but with noncommutative addition. The addition we introduce is a binary operation that comm…