TedG
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Questions Asked

TedG:
Group Title
can anyone help me construct some polynomials that satisfy f(1,1)=0=f(1,2).
 updated 8 months ago
 17 replies
 2 Medals
Mathematics

TedG:
Group Title
calculus of variation help needed. question in thread on invariant lagrangian.
 updated 10 months ago
 1 reply
 No Medals Yet
Mathematics

TedG:
Group Title
Let theta in lR and consider the rotational action
X = x cos  y sin ; Y = x sin + y cos :
Find the transformed derivatives Y' and …
 updated 10 months ago
 1 reply
 No Medals Yet
Mathematics

TedG:
Group Title
rayleighritz method. calculus of variations. question in thread.
 updated 10 months ago
 2 replies
 No Medals Yet
Mathematics

TedG:
Group Title
Anyone know anything about using rayleighritz method? calculus of variations.
 updated 10 months ago
 No Medals Yet
Mathematics

TedG:
Group Title
Prove cos(k theta) >= 0 for all k=1,2,3..., iff theta = 0, How do i prove this?
 updated one year ago
 No Medals Yet
Mathematics

TedG:
Group Title
Prove that if z ∈ C and Re(z^k) ≥ 0 for all k = 1, 2, 3, . . ., then z ∈ [0,∞).
 updated one year ago
 18 replies
 No Medals Yet
Mathematics

TedG:
Group Title
Let z = cos((2pi)/n) + i sin((2pi)/n) and n ≥ 2. Show that 1 + z + · · · + z^(n−1) = 0.
 updated one year ago
 7 replies
 2 Medals
Mathematics

TedG:
Group Title
group theory. Am I correct in saying (R,o) with x o y: lx . y has no identity element?
 updated one year ago
 21 replies
 No Medals Yet
Mathematics

TedG:
Group Title
Group Theory. Discuss whether or not the following binary operations are commutative, associative, have neutral elements and for which eleme…
 updated one year ago
 No Medals Yet
Mathematics

TedG:
Group Title
guys quick factorization question. can someone please explain how
m(m +1)−n(n+1) = (m −n)(m +n+1)??
 updated one year ago
 3 replies
 1 Medal
Mathematics

TedG:
Group Title
guys quick factorization question. can someone please explain how
m(m +1)−n(n+1) = (m −n)(m +n+1)?
 updated one year ago
 No Medals Yet
Mathematics

TedG:
Group Title
anyone good with group theory specifically finding new generators for a finitely generated abelian group, given a relation matrix. Question…
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

TedG:
Group Title
triple integration. urgent help! question in thread.
 updated one year ago
 14 replies
 No Medals Yet
Mathematics

TedG:
Group Title
vector calculus. I know how to calculate grad(phi), but what about phi(grad). Is this the same?
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

TedG:
Group Title
anyone know anything about critical points, (several variable calculus module). I have a quick question.
…
 updated one year ago
 6 replies
 No Medals Yet
Mathematics

TedG:
Group Title
Is anyone able to point me to a good page with the definition of differentiability for two variables?
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

TedG:
Group Title
W := {(x_1; x_2; x_3) in V l (x_2)=(x_1)(x_3)}
Is W a subspace of R^3 (subspace test)
 updated one year ago
 34 replies
 2 Medals
Mathematics

TedG:
Group Title
W := {(x_1; x_2; x_3) in V l (x_2)=(x_1)(x_3)}
Is W a subspace of R^3 (subspace test)
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

TedG:
Group Title
Let G be a group and let g,h in G with h(g^2)h = (h^2)gh. Show that g = h.
 updated one year ago
 17 replies
 2 Medals
Mathematics

TedG:
Group Title
hard question on attractive central force question in thread!
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

TedG:
Group Title
linear transformation question.*hard*
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

TedG:
Group Title
Linear transformation question. Question in thread. *hard*
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

TedG:
Group Title
Linear algebra question on linear transformations. ? in thread. *Hard*
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

TedG:
Group Title
any able to help with eigenvectors? question in thread.
 updated one year ago
 4 replies
 1 Medal
Mathematics

TedG:
Group Title
quick question on differentiablity of a function. ? in thread.
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

TedG:
Group Title
I need some help with multivariable calculus. Stuck, and would like some clarification. Question in thread.
 updated one year ago
 19 replies
 2 Medals
Mathematics

TedG:
Group Title
quick question on differential calculus. ? in thread.
 updated one year ago
 33 replies
 2 Medals
Mathematics

TedG:
Group Title
Group theory
Let G be a finite group with subgroups A,B<= G. Show that
[G:AnB]=[G:B].[A:AnB]<=[G:A].[G:B]
 updated one year ago
 No Medals Yet
Mathematics

TedG:
Group Title
anyone familiar with the logistic model with constant harvesting? need some clarification. given dN/dt =f(x) Where f(x) = rN(1(N/K)h. And…
 updated one year ago
 13 replies
 1 Medal
Mathematics
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