Recent content by Tianluo_Qi

Preserving to the third order in V, you will get some conclusion like v2-2v2b2+2v3b4=0. But by construction, we know that all the variables are of no relevance of the velocity, thus the formula before will give the zero and the half answer at the same time.

yey, it is and the page number is the same too

4.About the exact meaning of truncation for the calculation of ##g_{l}^{m}## and ##h_{l}^{m}##.(P47) I see the truncation at the maximum index ##T## here as we ordering ##g_{l}^{m}=0(l>T)##(all the same for ##h_{l}^{m}##, so I just discuss ##g_{l}^{m}## below), so all the equations for the same...

3.The coefficient before the sum-like integral expression is not correct even we assume that the orthogonal coefficient in the former page is correct. (P47) If we refer to the orthogonal coefficient without Kronecker delta part as ##OC_{lm}##, then the coefficient before the sum-like integral...

2.The orthogonal coefficient the writer shows for the spherical harmonics function is not consistent with what I learn. (P46) Of course the orthogonal coefficient will not affect the result for different ##l,l^{'}## or different ##m,m^{'}##, so let’s focus on the equal ones. And as far as I...

1.While changing the order of the summation of index ##l## and ##m## when dealing with the line-of-sight component of the photospheric field, the writer omit the minus part of m.(P45) as we know, the index m range from ##-l## through zero to ##l## for one certian ##l## in the spherical...

Hey guys, I am a Chinese student who is now reading the doctoral dissertation written by Mr. Heoksema, Structure and Evolution of the Large-Scale Solar and Heliospheric Magnetic Fields, for the preparation of my bachelor thesis. But some puzzles arise while reading the mathematic development of...