Ryan Budney

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13,326 reputation

32356

bio	website	rybu.org
	location	Victoria, Canada
	age	39
visits	member for	2 years, 9 months
	seen	1 hour ago
stats	profile views	3,317

I am a professor of mathematics at the University of Victoria, in Canada.

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9 Earned bounties for 1,325 reputation

earned offered active

6

votes

2

answers

207

views

+50

This set is a manifold

algebraic-topology manifolds

mar 7 at 0:22 Ryan Budney 13.3k

1

vote

2

answers

103

views

+50

How to obtain a Morse function on a submanifold of Euclidean space

differential-geometry differential-topology geometric-topology morse-theory

nov 15 at 6:07 Ryan Budney 13.3k

3

7

votes

2

answers

194

views

+500

$D^m\cup_h D^m$, joining $D^m \amalg D^m$ along the boundary $\partial D^m$

differential-geometry differential-topology

nov 3 at 19:16 Ryan Budney 13.3k

4

9

votes

1

answer

182

views

+500

Are these equivalent characterizations of closed manifolds?

differential-topology manifolds

sep 24 at 23:52 Ryan Budney 13.3k

3

6

votes

1

answer

153

views

+50

Possibilities of an action of $S^1$ on a disk.

reference-request differential-geometry lie-groups

aug 20 at 0:39 Ryan Budney 13.3k

2

11

votes

1

answer

321

views

+25

Gluing a solid torus to a solid torus with annulus inside.

algebraic-topology homology geometric-topology

may 3 '12 at 0:37 Aaron Mazel-Gee 3,531

3

3

votes

1

answer

181

views

+50

Singular manifold of the Jacobian

polynomials multivariable-calculus

nov 24 '11 at 4:25 Ryan Budney 13.3k

2

3

votes

1

answer

149

views

+50

Fiber bundle M x M - diagonal

general-topology fiber-bundles

nov 6 '11 at 20:09 Ryan Budney 13.3k

1

7

votes

2

answers

173

views

+50

Do we know this homogeneous space by another name?

differential-geometry lie-groups manifolds

mar 11 '11 at 2:25 Ryan Budney 13.3k

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