布朗運(yùn)動(dòng)及其應(yīng)用(編輯修改稿)
2024-07-25 09:41 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 sion of the pollen. The motion of suspended particles and later called the Brown movement. Not only the pollen and small carbon particles, suspended particles for liquid in different, we can observe the movement of Brown.Brown39。s discovery is a new phenomenon, what is it? It is very much puzzled. After Brown, this problem has been put forward, so many scholars have conducted longterm research. Some early researchers simply put it down to heat or electricity and other external factors caused the most. A reasonable explanation is early to Wiener (1826 1896), in 1863 he proposed the Brown vibration movement originated in the molecule, he published observations on the particle velocity and size relations for the first time. But his molecular models are not modern models, he saw was actually the particle displacement, and no vibration.In 70 80 years, some scholars consider Brown explicitly attributed to liquid molecular collision particle results, these scholars have Capon Neil Delsol and rayon and ladder, Negri. Negri (1879) botanist from fungi, bacteria spread through the air, that these particles even in still air or not heavy. Linked to the gas molecular physics movement in all directions at a high speed of the conclusion, he speculated that the flying dust is gas molecules from the direction of impact results seen in the sun. He said: being thrown around these tiny dust like elastic ball, the molecule itself as Can keep a long suspension. But this may Negri and give up the way to the correct interpretation, he calculated the individual gas molecules and dust particles velocity particle elastic collision, much smaller than the actual magnitude results observed, so he believes that because of the irregularity of the movement of gas molecules, they the result of the interaction can make the particles reach observation value of velocity in liquid due to friction and adhesion between particles and medium molecular, molecular motion assumption can not be the appropriate interpretation.Irregular random (walk)Definition: the random walk is a random walk. The concept is close to the Brown movement, which is the ideal state of Brown39。s motion.The core concept: the conserved quantities of any irregular walkers are corresponding to a diffusive transport law.It is important to establish the mathematical model of the Wiener process, which is an important financial innovation in modern financial mathematics. So far, the stock market is the most fundamental characteristic of the stock market.Brown39。s hypothesis is the core of modern capital market theory. The modern capital market theory holds that stock futures price is random, which means that the data is non
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