In this paper the notion of embedding for family of quasi metric spaces in Menger spaces is introduced and its properties are investigated. A common fixed point theorem for sequence of continuous mappings in Menger sp...In this paper the notion of embedding for family of quasi metric spaces in Menger spaces is introduced and its properties are investigated. A common fixed point theorem for sequence of continuous mappings in Menger spaces is proved. These mappings are assumed to satisfy some generalizations of the contraction condition. The proving technique herein seems to be new even for mappings in Menger spaces.展开更多
The analysis of the historical and theoretical origins of the dual identity of Chinese women based on the Marxist view of family-society enables a more scientific and reasonable explanation to the unity of history and...The analysis of the historical and theoretical origins of the dual identity of Chinese women based on the Marxist view of family-society enables a more scientific and reasonable explanation to the unity of history and logic of Chinese women’s dual identity.Under the guidance of the Marxist concept of family-society,Chinese women will achieve development in both family space and social space;meanwhile,Chinese women in the dual identity development carry the home-state emotion different from that of western women’s;cultivating women’s awareness of family identity is of great significance to the construction of family style or national style in the new era of socialism with Chinese characteristics.展开更多
The planet Earth is an integrated system, in which its multi-spheres are coupled, from the space to the inner core. Whether the space environment in short to long terms has been controlled by the earth's interior ...The planet Earth is an integrated system, in which its multi-spheres are coupled, from the space to the inner core. Whether the space environment in short to long terms has been controlled by the earth's interior process is contentious. In the past several decades,space weather and space climate have been extensively studied based on either observation data measured directly by man-made instruments or ancient data inferred indirectly from some historical medium of past thousands of years. The acquired knowledge greatly helps us to understand the dynamic processes in the space environment of modern Earth, which has a strong magnetic dipole and an oxygen-rich atmosphere. However, no data is available for ancient space weather and climate(>5 ka). Here, we propose to take the advantage of " space-diversity" to build a " generalized planetary space family", to reconcile the ancient space environment evolution of planet Earth from modern observations of other planets in our solar system. Such a method could also in turn give us a valuable insight into other planets' evolution.展开更多
There are two kinds of isometric isomorphism in probabilistic metric space theory. The first is that a PM space (E, F) is isometrically isomorphic to another PM space (E', F'), and the second is that a PM spac...There are two kinds of isometric isomorphism in probabilistic metric space theory. The first is that a PM space (E, F) is isometrically isomorphic to another PM space (E', F'), and the second is that a PM space (E, F) is isometrically isomorphic to a generating space of quasi-metric family (E', d(r), r is an element of (0, 1)). This paper establishes the connection between the two kinds of isometric isomorphism.展开更多
IN our family album, there is a picture of my grandfather, Fang Xiaoyue, and grandmother, Ma Junwan. The picture was taken in the 1920s when my grandparents were a newly married couple. It seemed to be in the afternoo...IN our family album, there is a picture of my grandfather, Fang Xiaoyue, and grandmother, Ma Junwan. The picture was taken in the 1920s when my grandparents were a newly married couple. It seemed to be in the afternoon in the photo, and in the background was an elegant garden, pale clouds in the sky, a rockery close by and a pavilion展开更多
文摘In this paper the notion of embedding for family of quasi metric spaces in Menger spaces is introduced and its properties are investigated. A common fixed point theorem for sequence of continuous mappings in Menger spaces is proved. These mappings are assumed to satisfy some generalizations of the contraction condition. The proving technique herein seems to be new even for mappings in Menger spaces.
文摘The analysis of the historical and theoretical origins of the dual identity of Chinese women based on the Marxist view of family-society enables a more scientific and reasonable explanation to the unity of history and logic of Chinese women’s dual identity.Under the guidance of the Marxist concept of family-society,Chinese women will achieve development in both family space and social space;meanwhile,Chinese women in the dual identity development carry the home-state emotion different from that of western women’s;cultivating women’s awareness of family identity is of great significance to the construction of family style or national style in the new era of socialism with Chinese characteristics.
基金supported by the National Science Foundation of China (41525016,41474155,41661164034,41621004)Macao FDCT grant 001/2016/AFJsupported by the Thousand Young Talents Program of China
文摘The planet Earth is an integrated system, in which its multi-spheres are coupled, from the space to the inner core. Whether the space environment in short to long terms has been controlled by the earth's interior process is contentious. In the past several decades,space weather and space climate have been extensively studied based on either observation data measured directly by man-made instruments or ancient data inferred indirectly from some historical medium of past thousands of years. The acquired knowledge greatly helps us to understand the dynamic processes in the space environment of modern Earth, which has a strong magnetic dipole and an oxygen-rich atmosphere. However, no data is available for ancient space weather and climate(>5 ka). Here, we propose to take the advantage of " space-diversity" to build a " generalized planetary space family", to reconcile the ancient space environment evolution of planet Earth from modern observations of other planets in our solar system. Such a method could also in turn give us a valuable insight into other planets' evolution.
文摘There are two kinds of isometric isomorphism in probabilistic metric space theory. The first is that a PM space (E, F) is isometrically isomorphic to another PM space (E', F'), and the second is that a PM space (E, F) is isometrically isomorphic to a generating space of quasi-metric family (E', d(r), r is an element of (0, 1)). This paper establishes the connection between the two kinds of isometric isomorphism.
文摘IN our family album, there is a picture of my grandfather, Fang Xiaoyue, and grandmother, Ma Junwan. The picture was taken in the 1920s when my grandparents were a newly married couple. It seemed to be in the afternoon in the photo, and in the background was an elegant garden, pale clouds in the sky, a rockery close by and a pavilion
