8 citations · 71 across the 35 of their papers we have counts for
11 papers · 1 filter
Social Synergetics, Social Physics and Research of Fundamental Laws in Social Complex Systems
Yi-Fang Chang
We proposed social synergetics and the four basic theorems, in which theorem of perfect correlation on humanity is researched mathematically. Generally, we discuss the four variabl…
Moderate Degree of Input Negative Entropy Flow and Decrease of Entropy in Astrophysics, Biology, Psychology and Social Systems
Yi-Fang Chang
Thermodynamics have been applied to astronomy, biology, psychology, some social systems and so on. But, various evolutions from astronomy to biology and social systems cannot be on…
Unified Equations of Boson and Fermion at High Energy and Some Unifications in Particle Physics
Yi-Fang Chang
We suggest some possible approaches of the unified equations of boson and fermion, which correspond to the unified statistics at high energy. A. The spin terms of equations can be…
Ten Puzzles in Particle Theory and Quarks as Only Possible Magic Particles with Some Symmetries
Yi-Fang Chang
We propose ten puzzles in particle theory: quark, asymmetries of quantum numbers in the Standard Model, point particle and interaction-distance, mystic Higgs mechanism, possible vi…
Y-Q and I-U Symmetries, and New Unified Lifetime Formulas of Hadrons
Yi-Fang Chang
Based on the Y-Q and I-U symmetries between mass and lifetime on the general SU(3) theory, we can derive the lifetime formulas of hyperons and mesons, which agree better with exper…
New Developed Pattern on Number System, New Number Field and Their Applications in Physics
Yi-Fang Chang
Based on a brief review on developments of number system, a new developed pattern is proposed. The quaternion is extended to a matrix form aI+bC+cB+dA, in which the unit matrix I a…
Quantitative Calculations of Decrease of Entropy in Thermodynamics of Microstructure and Sufficient-Necessary Condition of Decrease of Entropy in Isolated System
Yi-Fang Chang
Firstly, we calculate quantitatively decrease of entropy by the known formulas in the ordering phenomena and nucleation of thermodynamics of microstructure. They show again that a…
Nonlinear Quantum Theory, Development of the Superposition Principle and Possible Tests
Yi-Fang Chang
First, we point out that the present applied superposition principle is linear, it must be developed into a generality. Next, the linear operators and equations should be developed…
Nonlinear Density Wave Theory and Evolutionary Direction of Spiral Galaxies
Yi-Fang Chang
Based on the nonlinear equations of the density wave theory, the evolutionary direction and the observable conditions on spiral galaxies may be derived by the qualitative analysis…
New Type of Soliton Equation Described Some Statistical Distributions and Nonlinear Equations Unified Quantum Statistics
Yi-Fang Chang
We proposed a new type of soliton equation, whose solutions may describe some statistical distributions, for example, Cauchy distribution, normal distribution and student distribut…
Unification of Gravitational and Electromagnetic Fields in Riemannian Geometry
Yi-Fang Chang
The gravitational field and the source-free electromagnetic field can be unified preliminarily by the equations in the Riemannian geometry, both are contractions of im and ik, resp…