随机利率下股票价格服从指数O-U过程的期权定价

文章建立了股票价格服从指数O-U过程的随机微分方程,在风险中性的假设下利用Girsanov定理找到了该模型的唯一等价鞅测度;利用期权定价的鞅方法,得到了随机利率情形下股票价格服从指数O-U过程,并且影响利率的因素与影响股票价格的因素相关时欧式期权的定价.     

分数跳-扩散O-U过程下幂型期权定价

假设股票价格遵循分数跳-扩散O-U过程,且无风险利率和股票波动率均为时间的确定性函数,利用保险精算的方法,建立了分数跳扩散O-U过程下的幂型期权定价模型,获得了幂型期权的看涨和看跌定价公式.     

股票价格遵循Ornstein-Uhlenbeck过程的复合期权定价

讨论了股票价格遵循指数O-U（Ornstein-Uhlenbeck）过程,收益率和利率为时间 t的函数的欧式复合期权定价问题,用保险精算方法,给出了复合期权定价公式。     

基于指数O-U过程的幂型欧式期权定价

为了使股票价格更加符合市场实际情况,采用了能够反映股票预期收益率波动变化的指数O-U(Ornstein-Uhlenback)过程来刻画股票价格的变化规律,利用保险精算方法,获得了幂型欧式期权的定价公式。     

分数Vasicek利率模型下几种新型期权定价

假定股票价格过程服从分数跳-扩散过程,利率满足分数Vasicek利率模型,利用分数跳-扩散过程理论以及保险精算方法,讨论几种新型期权-欧式看涨幂型期权、欧式上封顶及下保底看涨幂型期权定价问题,获得了此类期权定价公式,将期权定价模型做了进一步推广.     

双分数Ornstein-Uhlenbeck过程下欧式幂型期权定价模型

讨论股票价格遵循双分数Ornstein-Uhlenbeck过程下的欧式幂型期权定价问题.假设股票价格遵循双分数Ornstein-Uhlenbeck过程且在预期收益率、无风险利率和波动率均为常数的情况下,建立双分数Ornstein-Uhlenbeck过程下金融市场模型.利用保险精算方法,推导双分数Ornstein-Uhlenbeck过程下欧式幂型期权和欧式上封顶及下保底幂型期权定价公式.     

基于Hull-White利率下O-U过程的复合期权定价

采用Hull-White模型和指数O-U过程来刻画利率和股票价格的变化规律,考虑到标的资产价格和利率的随机性与均值回复性,利用鞅理论和Girsanov定理,研究了股票价格在随机利率下遵循指数O-U过程的复合期权定价问题,得到了复合期权的定价公式.     

基于O-U过程具有随机寿命的奇异期权定价

假设股票价格遵循能反映股票预期收益率波动变化的指数O-U过程,利用期权定价的鞅方法和具有随机寿命的欧式期权的定价公式,得到了指数O-U过程随机模型下具有随机寿命的2种奇异期权的定价公式。     

利率和股票价格遵循O-U过程的幂型期权定价

在利率和股票价格均遵循O-U过程的假设下,利用无套利原理和偏微分方程方法得到了三类幂型期权的定价公式,并用数值模拟的方法考虑了随机利率对避险功能的影响.     

基于O-U过程具有不确定执行价格的期权保险精算定价

利用保险精算方法,给出股票价格遵循广义O-U (Ornstein-Uhlenback)过程模型具有不确定执行价格的欧式期权的精确定价公式以及买权和卖权之间的平价关系,进而推出有红利率的欧式看涨看跌期权的保险精算定价公式.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has