Researchers from Cienciasfísicas, Nacionalautónomademéxico and Centro International de Ciencias AC have determined the unique market status in the S & P 500 index of the COVID-19. This study was led by Dr. Man Vyas and conducted a command with her team, including Mijaílmartínez-Ramos, Parisa Majari and Thomas Seligman. state. Their discovery was published in the journal Plo One, a peer review.
Researchers analyzed the correlation of returns and observed a market state. The market is a historical data that spans 15 years in historical data. After the first economic panic, this “interconnected country” appeared and showed the unique features that had not been seen in the market before. This study uses the relative correlation of Pilson related matrix and relative correlation with the Standard 500 Index to identify this abnormalities.
“After the major epidemic, but after a few months, the common state will not appear immediately. This period corresponds to the collapse of panic selling.” Dr. Vis said. The lagging between the emergence of the epidemic and the emergence of the common state was attributed to the original market panic, which covered the subtle correlation that appeared later.
The analysis of the team shows that the characteristics of the common state are low average correlations and unique clusters in related matrix spaces. This country lasted more than a year, indicating that the market dynamics had undergone major changes during the popular period. Researchers use the K-average polyclass to classify market countries, and confirm that in different quantities of clustering and common state of robustness.
Dr. Vyas explained: “We found that the state of market state that did not exist before was within a time range that was closely related to COVID’s popularity. This shows that during the period, the economic consequences and population mentality of the population have been far -reaching to market behavior. Impact.
Further analysis shows that the transition matrix during the common state is almost triangular, thereby enhancing the uniqueness of this market conditions. Balanced distribution shows different market behaviors that have not been observed in other times.
The discovery of the study is of great significance to understanding the market dynamics in extreme events. Researchers emphasized the importance of considering the relative correlation. This provides more in -depth opinions for market countries by filtering up the main impact of the average correlation.
All in all, the emergence of common countries emphasizes that advanced analysis tools are required to detect and understand new market conditions. As Dr. Vyas pointed out, “this example will help us find related parameters in the stock market, rather than the highest feature value of the Pelson related matrix.”
Journal reference
Martínez-Ramos, MM, Vyas, M., Majari, P. With Seligman, “Standard 500 Standard S & P 500 market -state related analysis of COVID abnormalities.” PLOS One (2024): 19 (4): E0301238. https://doi.org/10.1371/journal.pone.0301238
About the author
I am ManuelmijaílmartínezramosThe graduates who are about to become a doctorate degree are quietly immersed in music. In the world of swimming and Capoeira, they have found comfort in the elegance and complexity of mathematics and physics. I obtained a bachelor’s degree in physics and MSC degrees from the National Autonomous University of Mexico (UNAM) in 2015 and 2018. My doctoral investigation focuses on the dynamics of the financial market starting from the relevant model. Since 2010, I have been teaching in high school with undergraduate students. My academic journey is full of challenges and fulfilling. It has spent a quiet time in learning, teaching, and research. They have an honor I am honored to share with the community.
Although I may not be the louder sound in the room or the smartest existence, I have strictly, not so strict in understanding and application of complex system physics. Publication. This work is located at the intersection of theoretical and practicality, which not only represents a personal milestone, but also represents the contribution I hope. This will prove the potential of the mathematical framework in understanding the social and economic phenomenon.
When I approached a doctorate degree, I was eagerly looking forward to the new challenges and opportunities waiting in the broad knowledge I have not discovered. My motivation surpasses daily learning; I long for the gap between research and practical applications to improve society.
Manan vyas 在印度印度印第安纳州印度印第安纳州的Devi Ahilya Vishwavidyalaya的Holkar科学学院获得了理学学士学位，她在印度艾哈迈达巴德的物理研究实验室的Devi Ahilya Vishwavidyalaya的物理学硕士学位，印度印度印度， India, India and doctoral degrees. She had a post -doctoral accommodation at Washington State University in Prileman; Yeshiva University in New York, USA, at the Institute of Physics of the National Autonomous University of Cuernavaca, Mexico. She is the first level of SNI, proud B and Mexican sports society.
Since 2015, she has served as a full -time researcher at the Institute of Physics of UNAM. In the institute, her research work is in random matrix theory, complex multi -body systems, quantum chaos, ecological physics and diversified analysis. The field was built. She published more than 30 research articles in the international peer review journal. She was a chief investigator of the two Papiit projects and a joint researcher at the Conahcyt Frontras project.
She actively participates in teaching and human resources training. She guided a bachelor’s degree thesis and co -guided the master’s dissertation. She has three undergraduates working with her and is a common visitor of doctoral dissertations. She is constantly teaching basic courses and elective courses for professors and graduate degrees in the field of uniM’s sports sciences. She was a member of several jury committees of undergraduate, master and doctoral students. She participated in the editorial committee of international journals. In addition, she also participated in the Papiit and ConAhcyt Project Evaluation Committee. She actively participated in the organization of several CIC AC activities (meetings, schools, and seminars), Cuernavaca was related to her research. She won the EPL Cash Award at the Nuclei and Mesoscopic Physics Conference at Michigan State University at Michigan University in 2017. Complexity ‘in journal entropy.
Parisa Majari Recently, the post -doctoral research at the Actultaddeququímica at the University of NaCionalautónomademéxico (UNAM) in Mexico City completed postdoctoral research.
Dr. Majari’s main research interest is the transportation behavior and electronic characteristics of two -dimensional quasi -quasi -quasi -quasi -material materials. She has studied how factors such as the potential and spin -orbit coupling affect the transmission coefficient and dynamic characteristics, and the impact of nano structure on innovative application electronics and optical properties.
During her academic journey, Dr. Majari received a bachelor’s degree in physics from the University of BU Ali Sina and obtained a master’s degree in gravity from the same university. Her doctorate research is concentrated in the simulation of quantum mechanical effects in nano -optical structure and graphene, including exploring the nature of graphene electrons and the study of relativity electrons in the theory of relativity in non -linear resonance oscillations.
Since obtaining a doctorate degree, Dr. Majari has held several postdoctoral positions in Cienciasfísicas College in Cuernavaca, Mexican. Her work covers a variety of themes, from the transfer of goose valley in the two -dimensional materials to the use of related matrix to promote the analysis of the financial market. It is worth noting that in her postdoctoral research, she also used the Kwant software for advanced computing simulation to study the electronic transmission characteristics of several layers of graphene systems, clarifying the frequency band structure, state density, and these 2D current voltage Feature materials.
In addition, during her postdoctoral term, Dr. Majari participated in a project focusing on design and analysis of photon waveguide arrays to simulate non -traffic space dynamics to prove their experimental potential.
Dr. Majari is proficient in various computing tools, including MAPLE, MATLAB, Python. She is also familiar with the theory of Gauss and Dental Function (DFT). Dr. Majari is the candidate of the Mexican researcher Sistema NaCional de Investigadores (SNI).
Thomas H. Seligman Born in 1944 in 1944, born in Basel Switzerland in 1944, later Switzerland, and finally Mexican nationality.
Undergraduate research: theoretical physics at the University of Basel. Doctor Tübingen University and Mexico, Tübingen and Cologne’s POSDOCS.
He returned to Mexico in 1976 as a researcher at the University of Mexico’s Naramaoma University. He was the first Mexico City and later in Cuernavaca. He is still active at the age of 80.
Marcos Moshinsky and Hansweidenmüller form a personality in his career; the former is decisive to the decisiveness of his movement to Mexico in Mexico.
His research began in the application of group theory in nuclear material science, and expanded to including random matrix theory, scattering theory, molecular physics, and recent ecological botanicals. After the earthquake in Mexico City was destroyed in 1985, exploring earthquake science caused an influential article in the magazine of Nature.
International cooperation includes the United States, Canada, Brazil, and recent India.
The most important awards are the National Science Award of Mexico and the Humboldt Award for Germany Te Alexander.
He is the chairman of the International Sciences Center and the founding president of the Morreos Institute of Science.
There are more than 200 papers in the famous international journal, of which more than 7,000 are cited, and there are more than 50 papers between the level of doctoral levels guided or guided between undergraduate and master’s and doctoral levels. Switzerland, Russia and Germany also emphasized his educational activities.
