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We survey existence and regularity results for semi-linear wave equations. In particular, we review the recent regularity results for the u 5 {u^5} -Klein Gordon equation by Grillakis and this author and give a self-contained, slightly simplified proof.
regularity, Research exposition (monographs, survey articles) pertaining to partial differential equations, existence, Mathematics - Analysis of PDEs, FOS: Mathematics, Wave equation, General existence and uniqueness theorems (PDE), Klein-Gordon equation, initial value problems, Second-order nonlinear hyperbolic equations, PDEs in connection with quantum mechanics, Analysis of PDEs (math.AP)
regularity, Research exposition (monographs, survey articles) pertaining to partial differential equations, existence, Mathematics - Analysis of PDEs, FOS: Mathematics, Wave equation, General existence and uniqueness theorems (PDE), Klein-Gordon equation, initial value problems, Second-order nonlinear hyperbolic equations, PDEs in connection with quantum mechanics, Analysis of PDEs (math.AP)
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 58 | |
popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |