hello guys , i have a metric and i want to find its non-zero components of ricci tensor but i have problem with writing the metric and maple gave me error.

non_zero_components_of_ricci_tensor.mw

hello , i have a metric that i know its ricci scalar (R=2m^2-2w^2), but maple obtains zero. i dont know where is my problem.

metric.mw

Best regards

Hello guys , i have a matrix that i want to find its eigenvalues , i have its answer but maple calculations didnt give its anwer.

answer:3(1+q),{-3m+sqrt(m*(256m^3+160m^2-31m-16)}/4m(m+1),{-3m-sqrt(m*(256m^3+160m^2-31m-16)}/43(m+1)

m and q can bu any number

maple calculation :

eigen.mw

thank you guys

Hello guys ,

I found critical points for a 3-D dynamical system (x,y,z) and m which in general is not constant (m(z/y) is a function of z.y, when i calculate eigenvalue for every critical point ,the maple assume m constant . how i find eigenvalues for general m which is not constant and is a function of z/y .

Thank You

ww.mw