User Eric O. Korman - Mathematics Stack Exchange

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	7,540 reputation	bio	website		visits	member for	2 years, 10 months
1731 badges		location	New Jersey		seen	8 hours ago

3

11

votes

1

answer

104

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If $S^1 \hookrightarrow X$ induces an injection of $H_1$, then $X$ retracts onto $S^1$

algebraic-topology

may 13 at 15:36 Tyler Lawson 866

64

60

votes

6

answers

1

kviews

Best Sets of Lecture Notes and Articles

may 9 at 21:19 Andrew 1,643

1

4

votes

0

answers

62

views

The classifying space of a gauge group

algebraic-topology group-actions classifying-spaces gauge-theory

may 3 at 12:35 H. Shindoh 324

22

36

votes

3

answers

4

kviews

Norms Induced by Inner Products and the Parallelogram Law

functional-analysis inner-product-space norm

apr 23 at 21:09 somaye 1,943

7

12

votes

4

answers

2

kviews

Sum of two periodic functions

analysis

apr 18 at 4:10 Stahl 3,617

11

17

votes

5

answers

2

kviews

Using Gröbner bases for solving polynomial equations

algebraic-geometry commutative-algebra polynomials

mar 13 at 19:31 azimut 5,488

1

vote

1

answer

57

views

Simple Sphere Suspension Question

general-topology algebraic-topology geometric-topology

mar 10 at 3:29 Dylan Wilson 2,054

3

5

votes

1

answer

53

views

A proof of the Weyl Character formula via fixed point formula and

reference-request representation-theory

mar 5 at 16:50 Sven 289

3

7

votes

1

answer

134

views

Fundamental group of the Klein bottle, using action of a group?

algebraic-topology homotopy-theory

feb 28 at 15:34 Daniel Rust 2,412

7

8

votes

1

answer

280

views

Undergraduate roadmap for Langlands program and its geometric counterpart

number-theory reference-request algebraic-geometry representation-theory automorphic-forms

feb 19 at 2:45 Orest Xherija 425

5

16

votes

2

answers

254

views

When is the sheaf corresponding to a vector bundle on a smooth manifold coherent?

algebraic-geometry differential-geometry sheaf-theory complex-geometry

feb 17 at 4:58 Martin Brandenburg 22.9k

4

10

votes

2

answers

246

views

Where do Chern classes live? $c_1(L)\in \textrm{?}$

reference-request algebraic-geometry schemes characteristic-classes

jan 26 at 20:39 Javier Álvarez 4,794

2

7

votes

1

answer

106

views

What is reductive group intuitively?

abstract-algebra algebraic-geometry lie-groups

nov 3 at 23:03 Brad 1,381

1

vote

1

answer

46

views

Given a closed submanifold $Y$ of $X$ and a $C^{\infty}$ map $f$ on $Y$, can $f$ be extended to $X$?

differential-geometry

oct 31 at 23:05 uncookedfalcon 2,499

1

3

votes

1

answer

67

views

$Gr_2^+(\mathbb R^4) \cong S^2 \times S^2$

differential-geometry differential-topology

oct 23 at 1:04 Qiaochu Yuan 118k

1

4

votes

1

answer

201

views

The connection in terms of local trivialization

differential-geometry

sep 4 at 12:39 Byron Schmuland 15.4k

9

12

votes

2

answers

551

views

PDEs on Manifolds

analysis differential-geometry pde

aug 23 at 21:22 doraemonpaul 3,031

5

6

votes

1

answer

697

views

Existence of a local geodesic frame

differential-geometry riemannian-geometry

aug 16 at 21:58 Community♦ 1

11

41

votes

3

answers

1

kviews

Getting Students to Not Fear Confusion

real-analysis soft-question teaching

aug 16 at 2:49 PPJ 310

9

12

votes

2

answers

746

views

Atiyah-Macdonald Exercise 2.20 (tensor products commute with direct limits)

homework commutative-algebra tensor-products

aug 8 at 18:09 Matt N. 15.3k

6

10

votes

1

answer

219

views

How to properly use GAGA correspondence

algebraic-geometry riemann-surfaces algebraic-curves sheaf-theory complex-geometry

jul 26 at 14:23 Georges Elencwajg 44.9k

3

12

votes

2

answers

255

views

Riemannian metric making a given function harmonic

differential-geometry riemannian-geometry

jun 21 '12 at 3:02 Chris Gerig 677

12

28

votes

16

answers

3

kviews

Pen, pencils and paper to write math

soft-question big-list

may 23 '12 at 19:46 toypajme 285

1

2

votes

0

answers

77

views

Finding Lie Subgroups

lie-groups

may 13 '12 at 8:57 BigThumb 11

1

6

votes

0

answers

150

views

Orientability of the total space of a vector bundle over an oriented manifold

differential-geometry vector-bundles

may 7 '12 at 21:24 Zhen Lin 21k

9

15

votes

2

answers

1

kviews

Visualizing the fundamental group of SO(3)

algebraic-topology lie-groups

apr 24 '12 at 21:25 Ronnie Brown 2,974

6

16

votes

1

answer

216

views

How can I lift a path to $\mathrm{Spin}(n)$?

algebraic-topology differential-geometry lie-groups

apr 24 '12 at 2:12 Changwei Zhou 1,012

3

5

votes

2

answers

128

views

Reference for densities and pseudoforms and non-tensorial representations of $\operatorname{GL}(n)$ and associated vector bundles

linear-algebra reference-request differential-geometry representation-theory tensors

mar 25 '12 at 23:02 Joe Hannon 478

10

43

votes

1

answer

811

views

A fleshed-out version of the Noncommutative Geometry proof of the Gauss-Bonnet Theorem?

reference-request noncommutative-geometry

mar 20 '12 at 10:52 Iyengar 1,207

1

3

votes

1

answer

300

views

Continuously deform 2-torus with a line through one hole to make it go through both

algebraic-topology

feb 10 '12 at 22:47 Grumpy Parsnip 9,579

Eric O. Korman

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