例句與造句

1. In a series of papers he explored propagation of singularities of symmetric hyperbolic systems inside of the domain and near the boundary.
2. Thus, if we are only interested in the propagation of singularities of the initial data, it is sufficient to consider such operators.
3. His work in propagation of singularities logically guided him to the theory of asymptotic distribution of eigenvalues ( a subject he has been studying ever since ).
4. He analyzed the propagation of singularities for solutions of wave equations on manifolds with corners or more complicated boundary structures, partially in joint work with Smale's conjecture for Anosov flows by Semyon Dyatlov and Maciej Zworski.
5. In 1981 he published important results on paradifferential operators, extending the theory of pseudifferential operators published by Ronald Coifman and Yves Meyer in 1979 . Bony applied his theory to the propagation of singularities in solutions of semilinear wave equations.
6. It's difficult to find propagation of singularities in a sentence. 用propagation of singularities造句挺難的
7. In fact, if we allow the sound speed c in the wave equation to vary with position we can still find a Fourier integral operator that provides a solution modulo smooth functions, and Fourier integral operators thus provide a useful tool for studying the propagation of singularities of solutions to variable speed wave equations, and more generally for other hyperbolic equations.