scholarly journals Every $3$-manifold admits a structurally stable nonsingular flow with three basic sets

2016 ◽  
Vol 144 (11) ◽  
pp. 4949-4957
Author(s):  
Bin Yu
2000 ◽  
Vol 55 (6) ◽  
pp. 1135-1136
Author(s):  
S Kh Aranson ◽  
E V Zhuzhoma ◽  
V S Medvedev ◽  
I A Tel'nykh

Nonlinearity ◽  
2015 ◽  
Vol 28 (11) ◽  
pp. 4081-4102 ◽  
Author(s):  
V Grines ◽  
Yu Levchenko ◽  
V Medvedev ◽  
O Pochinka

1981 ◽  
Vol 4 (3) ◽  
pp. 675-760
Author(s):  
Grażyna Mirkowska

The aim of propositional algorithmic logic is to investigate the properties of program connectives. Complete axiomatic systems for deterministic as well as for nondeterministic interpretations of program variables are presented. They constitute basic sets of tools useful in the practice of proving the properties of program schemes. Propositional theories of data structures, e.g. the arithmetic of natural numbers and stacks, are constructed. This shows that in many aspects PAL is close to first-order algorithmic logic. Tautologies of PAL become tautologies of algorithmic logic after replacing program variables by programs and propositional variables by formulas. Another corollary to the completeness theorem asserts that it is possible to eliminate nondeterministic program variables and replace them by schemes with deterministic atoms.


2013 ◽  
Vol 807-809 ◽  
pp. 2366-2370
Author(s):  
Hua Ping Yang ◽  
Ming Li ◽  
Zheng Xin Yan ◽  
Dong Zhi Yan

The coal molecule model and the absorption model of coal and methane were established according to Van der Walls force. The coal molecule model and the absorption model of coal and methane were optimized and obtained absorption energy and equilibrium structure with the DFT method with 6-311G++ basic sets. The effects of coal molecule on the absorption position, absorption energy and absorption distance of CH4 were presented by analyzing the Mulliken atomic charges of coal molecules.


2016 ◽  
Vol 29 (6) ◽  
pp. 483-491
Author(s):  
T. I. Arsenyan ◽  
E. A. Babanin ◽  
O. M. Vokhnik ◽  
A. M. Zotov ◽  
A. F. Mardanov ◽  
...  

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