For each of $m$ and $n$ a positive integer denote by $S(m ,i)$ the space of all real-valued symmetric $i$-linear functions on $E_m, i = 1, 2,\ldots,n$. Denote by $L ...
This paper studies the question of the resolvent existence, as well as, the smoothness of elements from the definition domain (separability) of a class of hyperbolic differential operators defined in ...
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