Liu, Wulong; Dai, Guowei; Winkert, Patrick Multiple sign-changing solutions for superlinear \((p,q)\)-equations in symmetrical expanding domains. (English) Zbl 1545.35060 Bull. Sci. Math. 191, Article ID 103393, 21 p. (2024). The authors study a \((p, q)\)-Laplacian elliptic equation defined on an symmetric expanding domain. The multiplicity result is proved on the base of the Lusternik-Schnirelmann category theory. Reviewer: Leszek Gasiński (Kraków) Cited in 1 Document MSC: 35J92 Quasilinear elliptic equations with \(p\)-Laplacian 35A01 Existence problems for PDEs: global existence, local existence, non-existence Keywords:\((p,q)\)-Laplacian; multiplicity; Lusternik-Schnirelmann category × Cite Format Result Cite Review PDF Full Text: DOI References: [1] Ackermann, N.; Clapp, M.; Pacella, F., Alternating sign multibump solutions of nonlinear elliptic equations in expanding tubular domains, Commun. Partial Differ. Equ., 38, 5, 751-779, 2013 · Zbl 1273.35132 [2] Alves, C. 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