Index of nonlocal problems associated with a bundle of such operators. For elliptic elements of the algebra, we prove the finiteness theorem and derive an
index formula
Index of Sobolev problems on manifolds with many-dimensional singularities property of such problems and derive the corresponding
index formula. The results are based on the theory
The variation of the index of refraction in a vortex tube inhomogeneities. Expressions relating the
index of refraction to the coordinate are obtained. The possibility