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Subject
News
July 9, 2026
HSE Economists Use Search Queries to Forecast Birth Rates
Researchers from the HSE Faculty of Economic Sciences have shown that the accuracy of birth rate forecasts for Russia can be improved by almost 50% by incorporating the dynamics of online search queries related to pregnancy and childbirth into forecasting models. In the best-performing models, the forecasting error fell from 4.6% to 3.2%. The findings have been published in Populations and Economics.
July 8, 2026
HSE Researchers Discover Who Eats Out in Russia-And Why
Around one-third of Russians (31.3%) rarely eat out or buy ready-made meals. The core group of active consumers—those who eat out or purchase prepared food almost every day or several times a week—accounts for only about 9% of the population. These are the findings of a study conducted by the HSE Institute for Social Policy. According to the researchers eating out is no longer a marker of high social status in Russia.
July 8, 2026
HSE University and RREDA Join Forces to Support 2026 Renewable Energy of the Planet Competition
HSE University and the Russia Renewable Energy Development Association (RREDA) have signed a partnership and information cooperation agreement to support Renewable Energy of the Planet—2026, a national competition with international participation for students and early-career researchers. Applications are open on the competition's website until September 20, 2026.

 

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О пространственной дискретизации одномерной квазигазодинамической системы уравнений с общими уравнениями состояния и балансе энтропии

Журнал вычислительной математики и математической физики. 2015. Т. 55. № 2. С. 267–284.
Gavrilin V. A., Zlotnik A.
Priority areas: IT and mathematics
Language: Russian
Full text
DOI
Keywords: газовая динамикаквазигазодинамическая система уравненийдискретизация по пространствууравнение баланса энтропииgeneral state equationsобщие уравнения состоянияgas dynamicsspatial discretizationentropy balance equationquasi-gasdynamic system of equations
Publication based on the results of:
Разработка и совершенствование квазигазодинамических методов и их приложения (2013)
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Применение регуляризованных уравнений динамики гетерогенных бинарных смесей для моделирования фазовых переходов вода-пар
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For an aggregated quasi-gasdynamic system of equations for a homogeneous gas mixture, we give an entropy balance equation with a nonnegative entropy production in the presence of diffusion fluxes. We also derive the existence, uniqueness, and L^2 -dissipativity of weak solutions to an initial-boundary value problem for the system linearized at a constant solution. Additionally, the Petrovskii parabolicity ...
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Added: November 11, 2021
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We study an explicit two-level symmetric in space finite-difference scheme for the multi\-di\-men\-si\-onal barotropic gas dynamics system of equations with quasi-gasdynamic regulari\-za\-tion linearized at a constant solution (with arbitrary velocity). A criterion and both necessary and sufficient conditions for the $L^2$-dissipativity of the solutions to the Cauchy problem for the scheme are derived by the spectral ...
Added: March 4, 2020
Критерии $L^2$-устойчивости линеаризованных явных разностных схем с регуляризацией для 1D уравнений газовой динамики
Lomonosov T., В кн.: Межвузовская научно-техническая конференция студентов, аспирантов и молодых специалистов им. Е.В. Арменского.: М.: МИЭМ НИУ ВШЭ, 2019.
В работе приводятся критерии (необходимые и достаточные условия) $L^2$-устойчивости для линеаризованных на постоянном решении разностных схем, основанных на некоторой регуляризации 1D баротропных и полных уравнений газовой динамики. Техника вывода основана на спектральном подходе. ...
Added: December 11, 2019
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