论文标题
重力的辐射不稳定性
The radiation instability in modified gravity
论文作者
论文摘要
我们研究了二次拉格朗日重力理论中不均匀辐射世界不均匀辐射世界的不稳定性的问题，这些重力理论写为具有约束的进化方程系统。我们构建形式的系列扩展，并表明所得解决方案的任意功能比一般解决方案中所需的函数少。这些结果继续保持一般相对论的更通用的多项式扩展。
We study the problem of the instability of inhomogeneous radiation universes in quadratic lagrangian theories of gravity written as a system of evolution equations with constraints. We construct formal series expansions and show that the resulting solutions have a smaller number of arbitrary functions than that required in a general solution. These results continue to hold for more general polynomial extensions of general relativity.
