Terms containing orthogonal eigenfunctions

Subject	English	Russian
math.	it is easy to establish that the eigenfunctions 3 are orthogonal with the weight P	ортогональны с весом (x, y)
math.	it is easy to establish that the eigenfunctions are orthogonal with the weight W	взаимно ортогональны (x, y)
math.	orthogonal eigenfunctions	ортогональная собственная функция
math.	the Chebyshev polynomials are orthogonal in the interval -1; 1 over a weight w x . it is easy to establish that these eigenfunctions are orthogonal with the weight p	ортогональны с весом (x, y)