ABSTRACT

Chapter 3

The Curvature-Eikonal

Flow for Convex Curves

In this chapter, we shall study the anisotropic curvature-eikonal ow

(ACEF) for closed convex curves. Three cases|contracting to a

point, converging to a stationary shape, and expanding to innity{

will be studied in detail in Sections 4, 5 and 6. In Section 3, we

present a self-contained treatment of an important special case|

the curve shortening ow. Some suÆcient conditions which ensure

shrinking to a point are established in Section 2. They apply to ows

more general than the ACEF and will be used in later chapters.