User user9352 - Mathematics Stack Exchange

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	653 reputation	bio	website		visits	member for	2 years, 1 month
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1

8

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527

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Derivative of a function is odd prove the function is even.

real-analysis

jan 11 '12 at 2:36 Mariano Suárez-Alvarez♦ 53.4k

1

8

votes

1

answer

606

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function that is its own inverse

real-analysis elementary-set-theory

aug 22 '11 at 18:21 Arturo Magidin 158k

2

8

votes

1

answer

227

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Weierstrass approximation does not hold on the entire Real Line

real-analysis

jul 8 '11 at 13:43 user9352 653

1

7

votes

1

answer

799

views

Steinhaus theorem (sums version)

real-analysis measure-theory

nov 30 '11 at 14:56 Davide Giraudo 56.3k

2

6

votes

1

answer

411

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Convergence of Integral Implies Uniform convergence of Equicontinuous Family

real-analysis analysis integral convergence

jan 11 '12 at 4:26 t.b. 43.2k

6

votes

5

answers

772

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If an Abelian group $G$ has order $n$ and at most one subgroup of order $d$ for all $d$ dividing $n$ then $G$ is cyclic

abstract-algebra

jan 4 '12 at 10:24 Davide Giraudo 56.3k

1

5

votes

6

answers

424

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$\sum \limits_{n=1}^{\infty}n(\frac{2}{3})^n$ Evalute Sum [duplicate]

real-analysis sequences-and-series limit

mar 1 at 23:20 Arjang 2,447

1

5

votes

3

answers

401

views

How to prove the implicit function theorem fails

analysis

jun 24 '11 at 14:38 user9352 653

2

4

votes

2

answers

150

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$\mathbb{Z}_m \oplus \mathbb{Z}_n$ isomorphic to $\mathbb{Z}_{mn}$ as $\mathbb{Z}_{mn}$ modules

abstract-algebra modules

sep 21 '11 at 16:13 Arturo Magidin 158k

1

4

votes

1

answer

174

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Cauchy-Schwarz application

real-analysis

sep 1 '11 at 22:51 Byron Schmuland 15.4k

3

votes

3

answers

161

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Normal and Lower triangular matrix implies diagonal matrix

linear-algebra

dec 23 '11 at 6:05 Jonas Meyer 35.1k

3

votes

1

answer

262

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Normal sylow subgroup of a finite group is characteristic

abstract-algebra

dec 22 '11 at 16:42 Community♦ 1

3

votes

2

answers

800

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ring of polynomials over a field has infinitely many primes

abstract-algebra

nov 9 '11 at 1:15 Lubin 6,041

1

3

votes

1

answer

130

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continuously differentiable function with small derivative

real-analysis

aug 12 '11 at 19:34 user9352 653

2

votes

1

answer

130

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derivative bounded by a constant multiple of the function

real-analysis

feb 10 '12 at 21:12 Community♦ 1

2

votes

1

answer

88

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Group of order 15 acting on a set of order 22

abstract-algebra

jan 8 '12 at 20:40 Dylan Moreland 13.4k

2

votes

5

answers

199

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How to show that $p(x)$ divided by $x-c$ has remainder $p(c)$

abstract-algebra polynomials

dec 30 '11 at 14:14 Community♦ 1

2

votes

1

answer

160

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Describe the ker and image of $\phi$

abstract-algebra

oct 13 '11 at 20:05 Jyrki Lahtonen 31k

2

votes

2

answers

104

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Sub-module over the Fraction field of a PID

abstract-algebra modules principal-ideal-domains

sep 16 '11 at 19:59 Community♦ 1

2

votes

1

answer

132

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Weierstrass approximation to a differentiable function

real-analysis

aug 18 '11 at 16:37 Davide Giraudo 56.3k

2

votes

1

answer

74

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Application of the Inverse Function Theorem to polar co-ordinate transformation

analysis

jun 17 '11 at 1:39 Jim Belk 13.7k

1

vote

1

answer

295

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Eigenvalues of a Real Symmetric Bilinear Form Independent of Basis

linear-algebra matrices

jan 8 '12 at 5:43 Pierre-Yves Gaillard 8,487

1

vote

1

answer

180

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basis for the unit sphere?

linear-algebra

jan 7 '12 at 22:34 cardinal 4,422

1

vote

1

answer

92

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Partition a connected metric space

real-analysis

dec 20 '11 at 1:42 Jonas Meyer 35.1k

1

vote

2

answers

427

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Number of elements of order $p$ is a multiple of $p-1$ (finite group).

abstract-algebra

dec 18 '11 at 21:46 M Turgeon 4,581

1

vote

2

answers

148

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A function that converges monotonically?

analysis

nov 17 '11 at 21:26 Davide Giraudo 56.3k

1

vote

2

answers

155

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multiplying a uniformly convergent sequence of functions by $x^{-1/2}$

real-analysis

oct 21 '11 at 7:18 robjohn♦ 60.1k

1

vote

2

answers

40

views

Existence of a Linear transformations that sends three lines to three lines

linear-algebra

sep 16 '11 at 1:01 Daniel 26

1

vote

1

answer

366

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sub-module of a direct sum of modules that is not the direct sum of submodules

abstract-algebra ring-theory modules

sep 11 '11 at 0:17 Zev Chonoles 54.2k

1

vote

1

answer

391

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derivative must be bounded on interior for a differentiable function on a closed interval

real-analysis

aug 11 '11 at 18:08 Shai Covo 17k

user9352

32 Questions