In the paper, we apply the weak gravity conjecture to the holographic quintessence model of dark energy. Three different holographic dark energy models are considered： without the interaction in the non-fiat universe...In the paper, we apply the weak gravity conjecture to the holographic quintessence model of dark energy. Three different holographic dark energy models are considered： without the interaction in the non-fiat universe; with interaction in the fiat universe; with interaction in the non-fiat universe. We tlnd that only in the models with the spatial curvature and interaction term proportional to the energy density of matter, it is possible for the weak gravity conjecture to be satisfied. And it seems that the weak gravity conjecture favors an open universe and the decaying of matter into dark energy.展开更多
本文的目标是在一般的p-线性空间和局部p-凸空间框架下建立针对单值和拟上半连续集值映射的不动点定理、最佳逼近定理、和对应的Leray-Schauder非线性(二择一)选择原理,这里p∈(0,1].我们建立的不动点定理是在p-线性空间和局部p-凸空间...本文的目标是在一般的p-线性空间和局部p-凸空间框架下建立针对单值和拟上半连续集值映射的不动点定理、最佳逼近定理、和对应的Leray-Schauder非线性(二择一)选择原理,这里p∈(0,1].我们建立的不动点定理是在p-线性空间和局部p-凸空间对Schauder猜想的肯定答复,对应的最佳逼近定理和Leray-Schauder选择原理也是非线性泛函分析的核心工具.这些新结果统一和推广了目前在数学文献中存在的理论成果,也是对作者最近工作([Fixed Point Theory Algorithms Sci.Eng.,2022,2022:Paper Nos.20,26])的继续和深度发展.展开更多
In this paper, the sharp estimates of all homogeneous expansions for a subclass of starlike mappings on the unit ball in complex Banach spaces are first established. Meanwhile, the sharp estimates of all homogeneous e...In this paper, the sharp estimates of all homogeneous expansions for a subclass of starlike mappings on the unit ball in complex Banach spaces are first established. Meanwhile, the sharp estimates of all homogeneous expansions for the above generalized mappings on the unit polydisk in Cnare also obtained. Our results show that a weak version of the Bieberbach conjecture in several complex variables is proved, and the obtained conclusions reduce to the classical results in one complex variable.展开更多
We conjecture a formula for the generating function of genus one Gromov-Witten invariants of the local Calabi-Yau manifolds which are the total spaces of splitting bundles over projective spaces. We prove this conject...We conjecture a formula for the generating function of genus one Gromov-Witten invariants of the local Calabi-Yau manifolds which are the total spaces of splitting bundles over projective spaces. We prove this conjecture in several special cases, and assuming the validity of our conjecture we check the integrality of genus one Bogomol'nyi-Prasad-Sommerfield(BPS) numbers of local Calabi-Yau 5-folds defined by Klemm and Pandharipande.展开更多
基金Supported by the Natural Science Foundation of the Northwest University of China under Grant No. NS0927
文摘In the paper, we apply the weak gravity conjecture to the holographic quintessence model of dark energy. Three different holographic dark energy models are considered： without the interaction in the non-fiat universe; with interaction in the fiat universe; with interaction in the non-fiat universe. We tlnd that only in the models with the spatial curvature and interaction term proportional to the energy density of matter, it is possible for the weak gravity conjecture to be satisfied. And it seems that the weak gravity conjecture favors an open universe and the decaying of matter into dark energy.
文摘本文的目标是在一般的p-线性空间和局部p-凸空间框架下建立针对单值和拟上半连续集值映射的不动点定理、最佳逼近定理、和对应的Leray-Schauder非线性(二择一)选择原理,这里p∈(0,1].我们建立的不动点定理是在p-线性空间和局部p-凸空间对Schauder猜想的肯定答复,对应的最佳逼近定理和Leray-Schauder选择原理也是非线性泛函分析的核心工具.这些新结果统一和推广了目前在数学文献中存在的理论成果,也是对作者最近工作([Fixed Point Theory Algorithms Sci.Eng.,2022,2022:Paper Nos.20,26])的继续和深度发展.
基金supported by Key Program of National Natural Science Foundation of China(Grant No.11031008)National Natural Science Foundation of China(Grant No.11061015)
文摘In this paper, the sharp estimates of all homogeneous expansions for a subclass of starlike mappings on the unit ball in complex Banach spaces are first established. Meanwhile, the sharp estimates of all homogeneous expansions for the above generalized mappings on the unit polydisk in Cnare also obtained. Our results show that a weak version of the Bieberbach conjecture in several complex variables is proved, and the obtained conclusions reduce to the classical results in one complex variable.
文摘We conjecture a formula for the generating function of genus one Gromov-Witten invariants of the local Calabi-Yau manifolds which are the total spaces of splitting bundles over projective spaces. We prove this conjecture in several special cases, and assuming the validity of our conjecture we check the integrality of genus one Bogomol'nyi-Prasad-Sommerfield(BPS) numbers of local Calabi-Yau 5-folds defined by Klemm and Pandharipande.
