James S. Cook

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213
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location Virgina USA
age 34
visits member for 10 months
seen 49 mins ago
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I'm interested in mathematics which is used to frame physical theory. I guess that means I'm at least a little interested in just about anything. Currently I'm trying to find a good open question to attack.


116 Answers

newest activity votes
-2
Representing sums of matrix algebras as group rings
2
Does this ODE have an exact or well-established approximate analytical solution?
1
Help with algebraic manipulation to prove that $\Omega (M)$ constructed from $\Omega^1 (M)$ forms an algebra over $C^\infty (M)$
0
Gradient of scalar potential
0
Regarding confusion of basis tensors and the usage of tensors.
0
conditions under which real-matrix exponential are equivalent
0
Wick Rotation Contour doesn't seem to be simply connected?
2
Star-shaped function
0
Matrix representation of a linear transformation between vector spaces
0
Can we solve the following differential equation using the method of substitution?
1
Wirtinger derivatives $\mathbb{C}$-linear
0
Using partial fractions and Laplace transform to solve a second order initial-value problem.
1
Laplacian(F) = (n-1/r)g'(r) + g''(r)
1
Given $(x^2 +3xy +y^2)dx - x^2 dy =0$ solve the DE.
0
Conformal Equivalance of Sets in $\mathbb C$
1
Multivariable Calculus books similar to “Advanced Calculus of Several Variables” by C.H. Edwards
0
Clairaut's Equation Singular and General Solutions
0
non-vanishing k-form on a k-manifold in $\mathbb{R}^n$ implies orientability
1
Linear Algebra finding a basis of the intersection of 2 vector spaces and its dimensions
8
What is the easiest way to integrate $\left(\frac{1-x}{1+x}\right)^{1/2}?$
1
Second order ODE with product of two functions on RHS
2
What is the general formula for calculating dot and cross products in spherical coordinates?
0
Geometric interpretation for complex eigenvectors of a 2x2 rotation matrix
1
Orthogonal complement and Legendre polynomial
0
Computing Limits of Multivariate Functions
2
Does taking $\nabla\times$ infinity times from an arbitrary vector exists?
0
Stokes' theorem - circle cross section in a sphere
0
Use the method variation of parameters to solve $4x^2y''+y=8x^{1/2}$
1
Give an example of a $3$-dimensional subspace of $P_4$ which contains the polynomials…
0
Triple integral for Volume of a region
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