*Discrete Mathematics Seminar*

Sharply focused and Hyperfocused Arcs

The Great River Bank

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

Constructions of SFA's

The Tangent Condition

The Tangent Condition

The Tangent Condition

Hyperfocused Arcs

Hyperfocused Arcs

Construction of HFA's

HFA's and Conics

No odd q

HFA's and Conics

The small SFA's

The small HFA's

SF 9-Arcs

SF 9-Arcs

SF 10-Arcs

Odd q Conic Conjecture

The even q Conjecture

The Even Conjecture