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Eric O. Korman

New Jersey

Age: 27

Graduate student in mathematics.

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Top Questions
Top Answers
25
Conjectures that have been disproved with extremely large counterexamples?
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15
Are $x \cdot 0 = 0$, $x \cdot 1 = x$, and $-(-x) = x$ axioms?
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14
Surprising Generalizations
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11
What should be in every grad student's library?
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10
Good Physical Demonstrations of Abstract Mathematics
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10
How do I measure distance on a globe?
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10
$\Omega=x\;dy \wedge dz+y\;dz\wedge dx+z\;dx \wedge dy$ is never zero when restricted to $\mathbb{S^2}$
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10
Do all representations of finite groups have one-dimensional subrepresentations?
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9
Intuitive explanation of covariant, contravariant and Lie derivatives
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9
Why is the orthogonal group $\operatorname{O}(2n,\mathbb R)$ not the direct product of $\operatorname{SO}(2n, \mathbb R)$ and $\mathbb Z_2$?
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8
If $A$ is a subobject of $B$, and $B$ a subobject of $A$, are they isomorphic?
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8
Intuition behind $dx \wedge dy=-dy \wedge dx$
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8
What sort of mathematical methods and models are used to model the brain
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8
Best Algebraic Topology book/Alternative to Allen Hatcher free book?
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8
Why is $\operatorname{Spin}(3) \cong \operatorname{SU}(2)$?
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7
Why are $3D$ transformation matrices $4 \times 4$ instead of $3 \times 3$?
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7
isomorphism and $id$
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7
How to prove that a conditionally convergent series can be rearranged to sum to any real number?
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7
every map can be replaced by a weakly equivalent fibration
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6
Card doubling paradox
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6
Varying definitions of cohomology
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6
What's so “natural” about the base of natural logarithms?
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6
Why should we care about groups at all?
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6
What is the second stiefel whitney class of SO(n)?
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6
Fundamental group of the special orthogonal group SO(n)
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6
Does the group of Diffeomorphisms act transitively on the space of Riemannian metrics?
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6
Approach to Learning Co/Homology
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6
Lie algebras from differentiation
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6
Show the existence of a polynomial $f$ such that $T^{-1} = f(T)$ for an invertible linear operator $T.$
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6
Is the vector cross product only defined for 3D?
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