9: Geometry of the Gauss Map Flashcards

1
Q

The Weingarten map is ___

A

symmetric

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2
Q

x(u,v) is ___ if F=0 (fff)

A

orthogonal

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3
Q

x(u,v) is ___ if F=0 (fff) AND M=0 (sff)

A

principal

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4
Q

if S is compact regular then there exists an ___ point in S

A

elliptic

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5
Q

if S is a regular minimal surface then S is ___

A

non-compact

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6
Q

if all points in a connected regular surface then S is contained in some ___ plane

A

affine

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7
Q

if S is convex regular diffeomorphic to a sphere then S has at least 2 ___ points

A

umbilic

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8
Q

the Willmore functional does not change under ___

A

rescaling

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9
Q

for S compact orientable regular diffeomorphic to a ___ then W(s)>2pi^2

A

torus

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