Results 221 to 230 of about 4,879,805 (235)
Some of the next articles are maybe not open access.
Observation of a phononic quadrupole topological insulator
Nature, 2017The modern theory of charge polarization in solids is based on a generalization of Berry’s phase. The possibility of the quantization of this phase arising from parallel transport in momentum space is essential to our understanding of systems with ...
M. Serra-Garcia+6 more
semanticscholar +1 more source
Общенациональный интерактивный энциклопедический портал "Знания", 2022
Alexei Yurievich Zoubov
semanticscholar +1 more source
Alexei Yurievich Zoubov
semanticscholar +1 more source
1966
Publisher Summary This chapter defines topological spaces and the related theorems. The condition for a set A to be open in a metric space is that each point of A belongs to an open ball contained in A. A space that contains no other closed-open subset is called connected. The union of two closed sets is a closed set.
openaire +3 more sources
Publisher Summary This chapter defines topological spaces and the related theorems. The condition for a set A to be open in a metric space is that each point of A belongs to an open ball contained in A. A space that contains no other closed-open subset is called connected. The union of two closed sets is a closed set.
openaire +3 more sources
Topological complex-energy braiding of non-Hermitian bands
Nature, 2021Kai Wang+3 more
semanticscholar +1 more source
Multiset mixed topological space
Soft Computing - A Fusion of Foundations, Methodologies and Applications, 2019Karishma Shravan, B. Tripathy
semanticscholar +1 more source
Introduction to neutrosophic soft topological space
, 2017Tuhin Bera, N. K. Mahapatra
semanticscholar +1 more source
Higher-order topological semimetal in acoustic crystals
Nature Materials, 2021Qiang Wei+8 more
semanticscholar +1 more source
Topological properties and dynamics of magnetic skyrmions.
Nature Nanotechnology, 2013N. Nagaosa, Y. Tokura
semanticscholar +1 more source