闸门
发表于 2025-3-21 19:51:34
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贿赂
发表于 2025-3-21 22:08:52
,New Representation Spaces of the Poincaré Group and Functional Quantum Theory,ncaré group which were first investigated by Wigner and Barg-mann and which are used in ordinary quantum field theory lead in connection with the principle of microcausality and locality to divergent results. Out of the various attempts to remove these defects we discuss those which are close
悲痛
发表于 2025-3-22 00:52:14
M. Zhang,H. Q. Zhang,G. X. Ai,H. N. Wangr all .. We call them . for the system. It can indeed be easily verified, and it is left as an exercise to the Reader, from the properties a) and b), that these operators form a group in the abstract sense of the word, the symmetry group of the system under consideration. We denote this group by G..
条街道往前推
发表于 2025-3-22 05:54:11
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细胞学
发表于 2025-3-22 12:35:13
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Halfhearted
发表于 2025-3-22 13:05:01
On the (Internal) Symmetry Groups of Linear Dynamical Systems,f cource the discrete time case also makes sense over any field k, (instead of IR). The spaces X, U, Y are respectively called state space, input space and output space. The usual picture is a “black box”.
Halfhearted
发表于 2025-3-22 20:56:50
The Magnetic Connectivity of Moss Regions,n of the typical many body phenomena such as phase transitions and spontaneous symmetry breakdown the use of the thermodynamical limit is even necessary, since no existing theory for the finite systems shows these effects. As a general rule one can say that a quantum system behaves like a thermodynamical system only in the infinite-volume limit.
scrutiny
发表于 2025-3-22 22:07:09
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冬眠
发表于 2025-3-23 02:27:55
Gerald W. Pneuman,Frank Q. Orrallon 3. Section 4 is entirely devoted to the question raised by the very existence of crystals in a world where the fundamental interactions are believed to be covariant at least under the group of rigid motions in IR..
胆小鬼
发表于 2025-3-23 08:33:21
Simulation of fiber suspensions,f cource the discrete time case also makes sense over any field k, (instead of IR). The spaces X, U, Y are respectively called state space, input space and output space. The usual picture is a “black box”.