| Dedicated to Professor Constantin Fetecau on the occasion of his 80th anniversary
Dumitru Motreanu† Abstract: The paper investigates an initial-boundary value problem involving the competing (p, q)-Laplacian −Δp + Δq. Under some conditions, which are different from the usual ellipticity and monotonicity conditions, the existence of a generalized solution is proven through a special Galerkin approach. An example illustrates the applicability of our result. Keywords: initial-boundary value problem, time depending competing operators, p-Laplacian, generalized solution. MSC: 35K92, 47J35, 35K20. DOI 10.56082/annalsarscimath.2026.4.289 Read full article *Accepted for publication on October 07, 2026 |
PUBLISHED in Annals Academy of Romanian Scientists Series on Mathematics and Its Application, ISSN ONLINE 2066 – 6594 |

