Sharply and Super Sharply Focused Arcs

The Great River Bank

Secret Sharing Schemes

A Solution to the Bank Problem

A Solution

Sharply Focused Arcs

Sharply Focused Arcs

Sharply Focused Arcs

Constructions of SFA's

Super Sharply Focused Arcs

Super Sharply Focused Arcs

Construction of SSFA's

SSFA's and Conics

Drake and Keating

The small sfa's and ssfa's

Super Sharply Focused 8-arcs

Sharply Focused 8-arcs

Open Problems