In this paper it is proved that all distributional solutions of the non-degenerate, al-most hypoelliptic (hypoelliptic by the one of variables) equation푃(퐷)푢=푃(퐷1,퐷2)푢=0are infinitely differentiable in the certain strip in퐸2under a priori assumption thatthey and its certain derivatives are square integrable with a certain exponential weight.
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Mathematics
, 2025, Issue 1, pp. 1–10
ISSN Online: 0000-0000
DOI:
10.xxxx/example-doi