?

Log in

No account? Create an account
artsg [entries|archive|friends|userinfo]
artsg

[ userinfo | livejournal userinfo ]
[ archive | journal archive ]

Pauli matrix dot product [Apr. 16th, 2018|07:47 pm]
artsg
[Tags|]

https://physics.stackexchange.com/questions/300423/need-help-with-solution-of-the-dirac-equation/300472#300472

Problem 8.4.17 из книги "Basic training in mathematics".

Pauli matrix exponential
https://en.m.wikipedia.org/wiki/Pauli_matrices#Exponential_of_a_Pauli_vector

Problem 8.4.18 из книги "Basic training in mathematics".
linkpost comment

Determinant of unitary matrix is 1 proof [Apr. 15th, 2018|08:00 pm]
artsg
[Tags|]

https://math.stackexchange.com/questions/239281/unitary-matrix-proof

Problem 8.4.14 из книги "Basic training in mathematics".
linkpost comment

Product of hermitian and unitary matrices [Apr. 14th, 2018|10:02 pm]
artsg
[Tags|]

https://math.stackexchange.com/questions/516707/the-transform-of-a-hermitian-matrix-by-a-unitary-matrix-is-hermitian

Problem 8.4.13 из книги "Basic training in mathematics".
linkpost comment

Integral of sin x cos x [Apr. 6th, 2018|01:22 pm]
artsg
[Tags|]

https://mindyourdecisions.com/blog/2015/08/09/the-perplexing-integral-of-sin-xcos-x-sunday-puzzle/
linkpost comment

complex residue semicircle exponential site:math.stackexchange.com [Feb. 28th, 2018|09:38 pm]
artsg
[Tags|, ]

https://math.stackexchange.com/questions/82642/improper-integral-exponential-divided-by-polynomial
linkpost comment

x^4+1=0 site:math.stackexchange.com [Feb. 28th, 2018|09:22 pm]
artsg
[Tags|, ]

https://math.stackexchange.com/questions/247312/what-are-the-solutions-to-z41-0

https://math.stackexchange.com/questions/3315/what-is-sqrti
linkpost comment

complex contour integral sine cosine sin(x)/(x^2+1) jordan's lemma [Feb. 26th, 2018|08:15 pm]
artsg
[Tags|, ]

https://math.stackexchange.com/questions/491439/how-would-one-evaluate-int-fracx-sinxx21-over-the-real-line
https://math.stackexchange.com/questions/140580/computing-int-infty-infty-frac-cos-xx2-a2dx-using-residue

Problem 6.4.3 из книги "Basic training in mathematics".
linkpost comment

Complex sine zero [Feb. 17th, 2018|09:52 pm]
artsg
[Tags|, ]

https://math.stackexchange.com/questions/1424803/when-hyperbolic-function-is-zero

https://math.stackexchange.com/questions/2430537/what-are-the-zeros-of-cos-z

Problem 6.2.4 из книги "Basic training in mathematics".
linkpost comment

Euler's formula, sum of cosines series [Feb. 8th, 2018|09:53 pm]
artsg
[Tags|, ]

https://math.stackexchange.com/questions/157143/sum-of-cosine-exponential

Problem 5.2.5 из книги "Basic training in mathematics".
linkpost comment

Коэффициенты Ламе (масштабные коэффициенты) [Jan. 29th, 2018|09:50 pm]
artsg
[Tags|, ]

http://portal.tpu.ru:7777/SHARED/k/KONVAL/Sites/Russian_sites/T_field/manual/38.htm

Problem 3.2.7 из книги "Basic training in mathematics".
linkpost comment

navigation
[ viewing | most recent entries ]
[ go | earlier ]