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10 Mar 2020: ȧ. a= ḃ. b= S sin θ cos θ, θ̇ =. S(b2 cos2 θ a2 sin2 θ)a2 b2. Combine these effects to obtain. ... ȧ. a= ḃ. b= S sin θ cos θ,. θ̇ =S(b2 cos2 θ a2 sin2 θ).

27 Feb 2020: 2 S)zByBz. Bx. Bz. K cos(Kz). sin(Kz+) 1. z+. ,. vy = v2az2. ... BxBz. K cos(Kz). sin(Kz+). The meridional (x and z) components of B are called the poloidal magnetic field, while the azimuthal(y) component is called the toroidal magnetic field.

26 Oct 2020: Substituting y,a,b and f by theirFourier series and using (3.3)-(3.5) we obtain an infinite dimensional system of linear equationsfor the Fourier coefficients ŷn:. ... For instance: choosinga(x) = f(x) = cos πx, b(x) = sin 2πx (which incidentally

23 Dec 2020: vr = rν cos φ[c(ν 1)Pν1 b(ν 1) cos θ Pν. ], ... 2.12a). vθ = rν cos φ[cP′ν1 2a csc θ Pν b.

15 Oct 2020: S =. α β. β α. β. β α.  ,are given by λk = α 2 iβ cos kx , and wk = (i. ... λk (A) =λk (C ). λk (B )=. 1 12 iµ cos kx.

4 Feb 2020: in Ow(l i)]B 1 •- ,. cos cos cos k2• sin 20.• -k} cos 20.,)A• iT.,•, 2k•, cos. ... d{ - 3a./.} cos X sin Or,( 1 i) - 2iR•vki, cos Ov] B•.

12 Oct 2020: Thus, the linear system Au = b can be written explicitlyin the block form. ... By Exercise 4, its eigenvalues and orthonormal eigenvectors aregiven as. B q = λq, λ = 4 2 cos πm1,.

28 Sep 2020: z = r cos θ. Then compute the Christoffel symbols by directly applying (1.8). ... l2(1 e cos φ) (4.16). where e is the eccentricity, a free parameter.

12 Feb 2020: Hence show that, for large Reynolds number, an energy amplification of(cos θ. ... ȧ. a= ḃ. b= S sin θ cos θ ,. θ̇ =S(b2 cos2 θ a2 sin2 θ).

7 Oct 2020: Thus, the linear system Au = b can be written explicitlyin the block form. ... By Exercise 4, its eigenvalues and orthonormal eigenvectors aregiven as. B q = λq, λ = 4 2 cos πm1,.