手握173篇论文的学术新星被指数据造假，12篇论文被撤稿，博士论文也被召回 - 腾讯云开发者社区-腾讯云

Schwinger's mechanism for mass generation relies on topological structures of a 2-dimensional gauge theory. In the same manner, corresponding 4-dimensional topological entities give rise to topological mass generation in four dimensions.

We prove that for non-linear L = L(R), the Lagrangians L and \hat L give conformally equivalent fourth-order field equations being dual to each other. The proof represents a new application of the fact that the operator

The solutions of two-dimensional gravity following from a non-linear Lagrangian L = f(R) are classified, and their symmetry and singularity properties are described. Then a conformal transformation is applied to rewrite these solutions as analogous solutions of two-dimensional Einstein-dilaton gravity and vice versa.

清末民国传统文学连环画数量巨大、名作众多、内容丰富，其文献整理与研究意义重大，论文在对现存相关文献进行调查、论证基础上，分析其基本状况和特征，对其文献整理与研究提出初步设想，并阐述其意义。

Mechanics is developed over a differentiable manifold as space of possible positions. Time is considered to fill a one--dimensional Riemannian manifold, so having the metric as lapse. Then the system is quantized with covariant instead of partial derivatives in the Schrödinger operator. Consequences for quantum cosmology are shortly discussed.