Lecture notes on trisections and cohomology

Two grumpy giants and a baby

Improved CRT algorithm for class polynomials in genus~$2$

Computing endomorphism rings of supersingular elliptic curves and connections to pathfinding in isogeny graphs

Fast computation of isomorphisms of hyperelliptic curves and explicit Galois descent

Faster computation of isogenies of large prime degree

A database of elliptic curves over ${\mathbb Q}(\sqrt{5})$: a first report

Two-cover descent on plane quartics with rational bitangents

Ranks, $2$-Selmer groups, and Tamagawa numbers of elliptic curves with $\mathbb{Z}/2\mathbb{Z} \times \mathbb{Z}/8\mathbb{Z}$-torsion

A friendly introduction to the bordered contact invariant

Morse foliated open books and right-veering monodromies

Branched covering simply-connected 4-manifolds

Dehn surgery and non-separating two-spheres

A remark on quantum Hochschild homology

Supersingular Curves With Small Non-integer Endomorphisms