Agnes Scott College

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19992026

most citedDistributed star formation throughout the Galactic Center cloud Sgr B2

105 citations

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3 papers · 1 filter

math.NT2025

Local data of elliptic curves under quadratic twist

Alexander J. Barrios, Manami Roy, Nandita Sahajpal +3

Let $K$ be the field of fractions of a complete discrete valuation ring with a perfect residue field. In this article, we investigate how the Tamagawa number of $E / K$ changes under…

math.NT2017★ 4 cited

The Structure of Hopf Algebras Acting on Dihedral Extensions

Alan Koch, Timothy Kohl, Paul J. Truman +1

We discuss isomorphism questions concerning the Hopf algebras that yield Hopf-Galois structures for a fixed separable field extension $L / K$ . We study in detail the case where $L / K$ …

math.NT2015

Primitively generated Hopf orders in characteristic $p$

Alan Koch

Let $R$ be a characteristic $p$ discrete valuation ring with field of fractions $K$ . Let $H$ be a commutative, cocommutative $K$ -Hopf algebra of $p$ -power rank which is generated a…

Local data of elliptic curves under quadratic twist

The Structure of Hopf Algebras Acting on Dihedral Extensions

Primitively generated Hopf orders in characteristic p

Primitively generated Hopf orders in characteristic $p$