Terms for subject Mathematics containing eigenfunctions

English	Russian
it is easy to establish that the eigenfunctions 3 are orthogonal with the weight P	ортогональны с весом (x, y)
it is easy to establish that the eigenfunctions are orthogonal with the weight W	взаимно ортогональны (x, y)
it is required to construct the above set of eigenfunctions while the error estimates must be uniform with respect to n	причём оценка погрешности должна быть равномерной по n
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)