×

zbMATH — the first resource for mathematics

Found 3 Documents (Results 1–3)

Ukr. Math. J. 51, No. 11, 1733-1748 (1999); translation from Ukr. Mat. Zh. 51, No. 11, 1534-1548 (1999).
MSC:  35K35 35A05 35B45
BibTeX Cite
Full Text: DOI

Filter Results by …

Year of Publication
Classification