User JTian - Mathematics Stack Exchange

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	614 reputation	bio	website		visits	member for	1 year, 1 month
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2

9

votes

0

answers

91

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Learning Aid for Basic Theorems of Topological Vector Spaces in Functional Analysis

mar 13 at 9:32 Davide Giraudo 57.3k

4

votes

2

answers

129

views

Schwarz Reflection Prinnciple for (Real) Harmonic Functions

real-analysis pde

mar 18 at 15:17 Hao Yun 66

3

votes

2

answers

48

views

Showing Solution to Some Random PDE Tends to Zero Uniformly

analysis pde

feb 24 at 9:05 Robert Israel 88.4k

1

3

votes

2

answers

68

views

Cauchy Problem for Heat Equation with Holder Continuous Data

analysis pde

feb 24 at 6:02 Community♦ 1

1

3

votes

1

answer

201

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Weakly Harmonic Functions (Weak Solutions to Laplace's Equation $\Delta u=0$) and Logic of Test Function Techniques.

analysis pde

feb 6 at 16:21 JTian 614

3

votes

2

answers

121

views

Paradox as to Measure of Countable Dense Subsets?

real-analysis general-topology measure-theory

oct 14 at 21:01 Michael Greinecker♦ 12.6k

1

3

votes

1

answer

139

views

Lebesgue Integration Question

analysis integration

jun 16 '12 at 19:56 Lierre 2,882

2

votes

1

answer

92

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Uniqueness of PDE BVP/IVP Modified Wave Equation

analysis pde

mar 6 at 2:16 timur 6,331

2

votes

0

answers

66

views

Boundedness for Reaction Diffusion BVP with Arbitrary Exponent $\alpha$

analysis pde

feb 28 at 5:19 JTian 614

2

votes

0

answers

55

views

Matrix Inequality

linear-algebra

feb 28 at 2:11 JTian 614

2

votes

2

answers

123

views

Uniqueness of Bounded Solutions to Dirichlet's Problem in the Half-Space

analysis pde

feb 1 at 13:09 Byron Schmuland 15.6k

2

votes

4

answers

57

views

Question on Notation w/ Transposes/Multiplication

linear-algebra

jan 27 at 13:54 David Wheeler 1,200

2

votes

1

answer

51

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Dominated Convergence Theorem for Sets

analysis measure-theory

oct 23 at 9:43 JTian 614

2

votes

0

answers

338

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Closure, Interior, and Boundary of Jordan Measurable Sets.

real-analysis measure-theory

oct 15 at 8:27 JTian 614

2

votes

1

answer

106

views

Why does the Lebesgue outer measure on $\mathbb{R}^{d}$ always exist for any set $A$?

real-analysis

oct 12 at 21:48 Yury 3,358

2

votes

0

answers

80

views

IVP Perturbation With Small Non-Linear Term

differential-equations perturbation-theory

aug 10 at 18:31 JTian 614

2

votes

1

answer

120

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Quick Question About Dynamical Systems

differential-equations dynamical-systems

jul 30 at 11:21 Ｊ. M. 39.9k

2

votes

1

answer

121

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1 Dimensional System Bifurcation - Classification Question

differential-equations

jul 9 '12 at 3:45 john mangual 1,864

2

votes

1

answer

509

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Measurable Functions as a Limit of Continuous Functions

real-analysis

may 11 '12 at 5:31 JTian 614

1

vote

2

answers

83

views

Taking Graduate Quals as an Undergrad to prepare for Grad School Applications

education career-development

apr 12 at 14:57 amWhy 62k

1

vote

1

answer

31

views

Necessary Condition for $C^{2}$ Regularity of this Function

analysis pde

mar 6 at 4:33 timur 6,331

1

vote

0

answers

40

views

Counter-example to homogeneity of unsigned lower Lebesgue integral.

measure-theory integration

dec 9 at 17:31 JTian 614

1

vote

1

answer

65

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Continuously Differentiable Curves in $\mathbb{R}^{d}$ and their Lebesgue Measure

analysis measure-theory

oct 22 at 10:09 Sam 7,204

1

vote

1

answer

48

views

Expressing a Countable Union of Sets as the Countable Union of Disjoint Sets (e.g. Eliminating Duplicate Intersections)

analysis measure-theory

oct 22 at 8:39 JTian 614

2

1

vote

1

answer

118

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Comparable Graduate ODE Text Suggestions

differential-equations

oct 18 at 1:44 Christopher A. Wong 6,846

1

vote

1

answer

119

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Extending the Hardy Littlewood Maximal Function Estimate to the Case $1<p<\infty$

analysis integration

jun 17 '12 at 15:00 Community♦ 1

1

vote

1

answer

145

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Continuous Monotonic Increasing Function $F$ s.t. $F'=0$ a.e. $x$ on an Arbitrary Compact $K$ with Measure Zero and no Isolated Points

analysis measure-theory

jun 17 '12 at 4:13 Nate Eldredge 23.3k

0

votes

0

answers

59

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Derive Global Error Expression (e.g. Prove Convergence) of Trapezoidal Method (ODE)

differential-equations numerical-methods

dec 2 at 2:51 JTian 614

0

votes

0

answers

73

views

Choosing Stepsize $h$ in Accordance with Absolute Stability Requirements in Non-Linear ODE Systems

differential-equations numerical-methods

nov 29 at 23:59 JTian 614

0

votes

1

answer

64

views

Show that $x(t)=\bar{x}(t)+O(\epsilon)$

analysis differential-equations perturbation-theory

aug 11 at 21:55 JTian 614

JTian

31 Questions