Vaskevich, Vladimir L. Spherical polyharmonic equation. (English) Zbl 1474.31004 Funct. Differ. Equ. 24, No. 3-4, 157-166 (2017). MSC: 31B30 33C55 58J05 × Cite Format Result Cite Review PDF Full Text: Link
Srinivasu, Pichika D. N.; Misganaw, B. Existence and stability of a periodic solution for an equation governing dynamics of a renewable resource subjected to additive Allee effects. (English) Zbl 1474.34270 Funct. Differ. Equ. 24, No. 1-2, 67-82 (2017). MSC: 34C25 92D25 37C60 47N20 34D20 × Cite Format Result Cite Review PDF Full Text: Link