On Glassey’s conjecture for semilinear wave equations in Friedmann–Lemaître–Robertson–Walker spacetime
Sign Up to like & getrecommendations! Published in 2021 at "Boundary Value Problems"
DOI: 10.1186/s13661-021-01571-0
Abstract: Consider nonlinear wave equations in the spatially flat Friedmann–Lemaître–Robertson–Walker (FLRW) spacetimes. We show blow-up in finite time of solutions and upper bounds of the lifespan of blow-up solutions to give the FLRW spacetime version of… read more here.
Keywords: tre robertson; friedmann lema; robertson walker; glassey conjecture ... See more keywords
Singularities of Fuzzy Friedmann-Lemaître-Robertson-Walker Space
Sign Up to like & getrecommendations! Published in 2025 at "Axioms"
DOI: 10.3390/axioms14080591
Abstract: We obtain different categories of singularities of fuzzy retracts, fuzzy deformation retracts, and fuzzy foldings on fuzzy fundamental groups of the fuzzy Friedmann–Lemaître–Robertson–Walker Space W˜4. The fuzzy fundamental groups of fuzzy submanifolds in W˜4 are… read more here.
Keywords: friedmann lema; fuzzy friedmann; robertson walker; tre robertson ... See more keywords