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Stochastic local volatility models and the Wei-Norman factorization method
Discrete and Continuous Dynamical Systems - Series S. 2022. Vol. 15. No. 12. P. 3699–3722.
Guerrero J., Orlando G.
In this paper, we show that a time-dependent local stochastic volatility (SLV) model can be reduced to a system of autonomous PDEs that can be solved using the heat kernel, by means of the Wei-Norman factorization method and Lie algebraic techniques. Then, we compare the results of traditional Monte Carlo simulations with the explicit solutions obtained by said techniques. This approach is new in the literature and, in addition to reducing a non-autonomous problem into an autonomous one, allows for shorter time in numerical computations.
СПб.: Скифия-принт, 2024.
В сборник включены материалы по результатам работы международных научных и научно-практических конференций, состоявшихся в Санкт-Петербургском государственном университете в апреле 2024 года в рамках VIII Международного экономического Симпозиума - 2024. В конференциях приняли участие представители ведущих российских и зарубежных вузов, научных учреждений и бизнес-сообщества. Сборник материалов предназначен для бакалавриантов, магистрантов, аспирантов и преподавателей экономических специальностей вузов, ...
Added: May 29, 2026
СПб.: Скифия-принт, 2023.
В сборник включены материалы по результатам работы международных научных и научно-практических конференций, состоявшихся в Санкт-Петербургском государственном университете в апреле 2023 года в рамках VII Международного экономического Симпозиума - 2023. В конференциях приняли участие представители ведущих российских и зарубежных вузов, научных учреждений и бизнес-сообщества. Сборник материалов предназначен для бакалавриантов, магистрантов, аспирантов и преподавателей экономических специальностей вузов, ...
Added: May 29, 2026
М.: ООО «Адвансед солюшнз», 2026.
Данный выпуск сборника студенческих статей .Восточная перспектива. включает в себя статьи победителей и призеров XI Международной научной студенческой конференции "Восточная перспектива", состоявшейся 18 мая 2024 года. В 2024 году на конференцию было подано 115 заявок, офлайн и онлайн в конференции приняли участие докладчики и слушатели из различных вузов России и ближнего и дальнего Зарубежья. ...
Added: May 29, 2026
М.: ООО «Адвансед солюшнз», 2026.
Данный выпуск сборника студенческих статей «Восточная перспектива» включает в себя статьи победителей и призеров X Международной научной студенческой конференции «Восточная перспектива», состоявшейся 15 апреля 2023 года. Юбилейная конференция стала знаковым событием для студентов различных подразделений НИУ ВШЭ и других вузов России, занимающихся подготовкой востоковедческих кадров. ...
Added: May 29, 2026
СПб.: Скифия-принт, 2025.
В сборник включены материалы по результатам работы международных научных и научно-практических конференций, состоявшихся в Санкт-Петербургском государственном университете в апреле 2025 года в рамках IX Международного экономического Симпозиума - 2025. В конференциях приняли участие представители ведущих российских и зарубежных вузов, научных учреждений и бизнес-сообщества. Сборник материалов предназначен для бакалавриантов, магистрантов, аспирантов и преподавателей экономических специальностей вузов, ...
Added: May 29, 2026
Севастополь: Федеральное государственное автономное образовательное учреждение высшего образования "Севастопольский государственный университет", 2025.
В настоящий сборник вошли материалы участников VI Всероссийской научнопрактической конференции студентов, аспирантов, молодых ученых «Эффективное государственное и муниципальное управление как фактор социально-экономического развития территорий», которая состоялась 20-21 ноября 2025 г., в г. Севастополь. Авторы рассматривают актуальные вопросы совершенствования системы государственного и муниципального управления регионом, аспекты социальноэкономического развития территорий. Сборник предназначен для преподавателей, аспирантов, соискателей, магистрантов, ...
Added: May 29, 2026
Gorbounov Vassily, Kazakov A., Data Analytics and Topology 2025 Vol. 1 No. 1 P. 33–45
A classic problem in data analysis is studying the systems of subsets defined by either a similarity or a dissimilarity function on X which is either observed directly or derived from a data set.
For an electrical network there are two functions on the set of the nodes defined by the resistance matrix and the response ...
Added: May 28, 2026
Vorchik A., Вопросы экономики 2026
This work is devoted to a theoretical explanation of the Easterlin paradox, according to which long-term economic growth does not make average level of people's happiness increasing. By happiness, we mean the intensity of emotions people experience while comparing their new income with its expected value, or the target income with its original value. In the first case, ...
Added: May 28, 2026
Mikhail V. Sokolov, Engineering Economist 2026 Vol. 71 No. 2 P. 159–173
The payback period is unambiguously defined for conventional investment projects—projects in which a series of cash outflows is followed by a series of cash inflows. Its definition for nonconventional projects is more challenging, since their balances (cumulative cash flow streams) may have multiple break-even points. Academics and practitioners offer a few contradictory recipes to manage ...
Added: May 28, 2026
Давидович А. С., Shestakova A., Arzumanyan N. et al., Frontiers in Psychology 2026 Vol. 17 - 2026 P. 1–18
Background:
Delay discounting refers to the tendency to choose sooner, smaller rewards over larger, later rewards. Many previous studies link this tendency positively to reward sensitivity, yet the specific mechanisms behind this association remain poorly understood. Reward sensitivity may relate to delay discounting through at least three possible pathways: increased sensitivity to reward size, increased sensitivity ...
Added: May 27, 2026
Tatarinov A., Вопросы статистики 2026 Т. 33 № 2 С. 5–22
The relevance of the article stems from the ongoing transition of national statistical offices to the implementation of the new international macroeconomic accounting standard, SNA 2025. This standard defines modern approaches to measuring economic activity in the context of globalization and digitalization and incorporates assessments of well‑being and sustainability. The subject of the paper is the ...
Added: May 27, 2026
Degtyarev A., Bakhurin S., Yudin N., DSPA 2026 P. 1–6
This paper investigates one possible solution to the problem of self-interference cancellation (SIC) arising in the design of in-band full-duplex (IBFD) communication systems. Self-interference cancellation is performed in the digital domain using multilayer nonlinear models adapted via gradient-based optimization. The presence of local minima and saddle points during the adaptation of multilayer models limits the ...
Added: May 26, 2026
Kalinin A. M., Проблемы прогнозирования 2026 № 1 С. 45–55
Rosstat's publication of basic input–output tables for 2021, given the five-year periodicity of such materials, represents a significant event for Russian economic science. The article provides an overview of some of the features and properties of the published tables and the results of their use for the analysis of technological changes and import dependence. It ...
Added: May 26, 2026
Романова В. В., Tkachuk A., Экономические науки 2026 № 2 С. 561–565
Актуальность статьи обусловлена трансформацией мирохозяйственных связей под влиянием
Китая. Степень разработанности отражена в полярных оценках экспансии КНР. Объект — экономическая экспансия Китая, предмет — модели взаимодействия со странами Глобального Юга.
Методология базируется на геоэкономическом подходе и концепции асимметричной взаимозависимости. Практическая значимость заключается в выявлении рисков долговой и технологической
зависимости и рекомендациях для стран-партнеров по выстраиванию сбалансированного сотрудничества. ...
Added: May 26, 2026
Kalinin A. M., Вопросы экономики 2025 № 8 С. 26–43
The study of the consequences of the application of individual sanctions instruments at the level of industries or segments of the economy allows us to assess the components and factors of overall sustainability, the effectiveness of the state policy. The paper provides an econometric assessment of the impact of US SDN list sanctions on Russian ...
Added: May 26, 2026
Kalinin A. M., Проблемы прогнозирования 2024 № 1(202) С. 35–53
The dynamics of the Russian economy in 2022 did not develop along the trajectories expected in most forecasts. Investments in fixed assets, contrary to expectations, decreased slightly; some industries have seen growth. The article offers an analysis of the 2022 results from the point of view of justification of views on the factors determining investment ...
Added: May 26, 2026
A. A. Ponomarev, N. L. Aleksandrov, Physics of Plasmas 2024 Vol. 31 No. 4 Article 043517
The kinetics of O2- ions was numerically studied in He and Ar with a small admixture of O2 in a strong electric field through a Monte Carlo simulation. Cross-sections for elastic scattering between O2- ions and He and Ar atoms were determined by adjusting cross-section values to obtain good agreement between calculated and measured ion ...
Added: August 26, 2024
Kolokoltsov V., Lin F., Mijatovic A., Fractional Calculus and Applied Analysis 2021 Vol. 24 No. 1 P. 278–306
The paper is devoted to the numerical solutions of fractional PDEs
based on its probabilistic interpretation, that is, we construct approximate
solutions via certain Monte Carlo simulations. The main results represent
the upper bound of errors between the exact solution and the Monte Carlo
approximation, the estimate of the fluctuation via the appropriate central
limit theorem (CLT) and the construction ...
Added: October 29, 2021
Shchur L., / Series arXiv "math". 2021. No. 2107.02406.
In the late 80s and 90s, theoretical physicists of
the Landau Institute for Theoretical Physics designed and
developed several specialized computers for challenging
computational problems in the physics of phase transitions.
These computers did not have a central processing unit. They
optimize algorithms to handle elementary operations on
integers - read, write, compare, and count. The approach
allowed them to achieve recording ...
Added: July 26, 2021
Belomestny D., Schoenmakers J., Spokoiny V. et al., Communications in Mathematical Sciences 2020 Vol. 18 No. 1 P. 109–121
In this note we propose a new approach towards solving numerically optimal stopping problems via reinforced regression-based Monte Carlo algorithms. The main idea of the method is to reinforce standard linear regression algorithms in each backward induction step by adding new basis functions based on the previously estimated continuation values. The proposed methodology is illustrated ...
Added: November 18, 2020
Bayer C., Belomestny D., Redmann M. et al., Journal of Mathematical Analysis and Applications 2020 Vol. 490 No. 1 Article 124236
We study linear rough partial differential equations in the setting of [Friz and Hairer, Springer, 2014, Chapter 12]. More precisely, we consider a linear parabolic partial differential equation driven by a deterministic rough path W of Hölder regularity α with 1/3 < α ≤ 1/2. Based on a stochastic representation of the solution of the rough partial differential equation, we propose a ...
Added: May 22, 2020
Dumanski I., Feigin E., Finkelberg M. V., / Series math "arxiv.org". 2020. No. 2003.12930.
We compute the spaces of sections of powers of the determinant line bundle on the spherical Schubert subvarieties of the Beilinson- Drinfeld affine Grassmannians. The answer is given in terms of global Demazure modules of the current Lie algebra. ...
Added: April 2, 2020
Прудников В. В., Прудников П. В., Маляренко П. Н. et al., Журнал экспериментальной и теоретической физики 2020 Т. 157 № 2 С. 308–326
SImulations of the relaxation of the diluted Ising model from initial states with different magnetization have been done. We measure two-time autocorrelation function and dynamical susceptibility. We found the influence of the percolation threshold dominates the crossover behavior. ...
Added: February 20, 2020
Ponomarev A., Aleksandrov N. L., Journal of Physics D: Applied Physics 2020 Vol. 53 No. 5 Article 055203
The kinetics of and O− ions was addressed in air plasma in a rapidly time-varying electric field that is typical for nanosecond pulsed surface dielectric barrier discharges. Self-consistent sets of cross-sections for these ions in collisions with O2 and N2 molecules were developed. The Monte Carlo technique was used to calculate ion energy distribution, mean ion energy and reaction ...
Added: February 9, 2020