The math god's user avatar
The math god's user avatar
The math god's user avatar
The math god
  • Member for 6 years, 10 months
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7 votes
1 answer
1k views

Show composition mapping is continuous with compact-open topology

6 votes
2 answers
441 views

Prove that $\pi$ is irrational help

5 votes
1 answer
2k views

Product of Two Functions is Riemann Integrable (Multivariable Calculus)

5 votes
1 answer
119 views

Dimension of solution space and adjoint solution space are equal

3 votes
1 answer
2k views

Prove Riemann Integral is Zero

3 votes
3 answers
773 views

Local Injectivity Given Rank of Jacobian

3 votes
2 answers
295 views

Matrix Representation of Tranpose of Operator with Respect to Dual Basis

3 votes
1 answer
68 views

If $(u(x,y))^2+u(x,y)v(x,y)$ has a local maximum or minimum in $D$, then $f$ must be constant?

2 votes
1 answer
390 views

Prove supremum of real part is an increasing function

2 votes
2 answers
978 views

Show the real projective plane is an n-dimensional topological manifold

2 votes
2 answers
1k views

Show that the real projective line is homemorphic to the unit circle

2 votes
2 answers
75 views

Extremum of Continuously Partially Differentiable Function

2 votes
2 answers
136 views

Show that the non-zero reals are connected in every dimension other than $N=1$

2 votes
1 answer
598 views

Counter Example to Minimal Norm Theorem for Hilbert Spaces

1 vote
1 answer
71 views

Stability Condition of System of ODE's and its Adjoint

1 vote
1 answer
2k views

Average of Normally Distributed Variables (Probability)

1 vote
1 answer
4k views

Change of Basis (Transformation Matrix)

1 vote
2 answers
1k views

Eigenvector of matrix with all positive entries

1 vote
1 answer
128 views

Minimal Polynomial of Induced Mapping

1 vote
1 answer
297 views

Jordan Content/Measure Zero of Interval in $\mathbb{R}^n$

1 vote
1 answer
394 views

Commutivity of Diagonal and Nilpotent Operator (Jordan Decomposition).

1 vote
1 answer
68 views

Commutivity of Endomorphism with Jordan Decomposition

1 vote
2 answers
772 views

$C^1$ Parameter Transformation. Show function and it's inverse are continuously differentiable.

1 vote
1 answer
2k views

Find Dual Basis of Finite Vector Space of Polynomials

1 vote
2 answers
482 views

Complex Anti-derivative of tan(z)

1 vote
1 answer
66 views

Find the equivalence class of $X\coprod Y$

1 vote
1 answer
237 views

Composition of compact convergent sequence is compact convergent

1 vote
1 answer
335 views

Show if a function has a local maximum, then $f$ is constant

1 vote
2 answers
717 views

Simple function iff Lebesgue measurable and has finite range.

0 votes
1 answer
157 views

Maximal Time of Existence for $u_t+uu_x+u=0$