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October 6, 2026
International N5 Symposium ‘Neural Networks and Nonlinearity in Nizhny Novgorod Brings Together Scientists from Russia and Serbia
The International N5 Symposium ‘Neural Networks and Nonlinearity in Nizhny Novgorod’ was held at the Nizhny Novgorod House of Scientists from September 23 to 26. The event was organised by HSE University–Nizhny Novgorod and the Nizhny Novgorod House of Scientists, with the participation of Sberbank and the Institute of Physics Belgrade. The symposium was held for the second time: the first conference took place in 2025 and attracted considerable interest from the academic community.
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‘The Climate Transition Is Not Necessarily a Limitation for Business
Linara Khadimullina works in the field of low-carbon development. In an interview with the Young Scientists of HSE project, she spoke about why nature is not just a beautiful backdrop, her research on the role of sustainable corporate governance in reducing greenhouse gas emissions, and growing plants as a source of inspiration.
October 5, 2026
Africa, Youth, and Civic Dialogue: Public Diplomacy Discussed at HSE University
In late September, HSE University hosted a roundtable discussion titled Civil Society in African Countries and Youth Participation in Public Diplomacy. Representatives of non-governmental organisations from Ghana, Ethiopia, and Russia, along with students from HSE University’s Bachelor’s Programme in Public Administration, discussed how young people without official diplomatic status can influence relations between countries and how the nonprofit sector can remain sustainable amid declining grant funding.

 

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Следы пространств Соболева на кусочно регулярных по Альфорсу–Давиду множествах

Математические заметки. 2023. Т. 114. № 3. С. 404–434.
Tyulenev A.
Language: Russian
Keywords: пространства Соболева
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The Sobolev space W_2^{1/2}: Simultaneous improvement of functions by a homeomorphism of the circle
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It is known that for every continuous real-valued  function $f$ on the circle $\mathbb T=\mathbb R/2\pi\mathbb Z$ there exists a  change of variable, i.e., a self-homeomorphism $h$ of $\mathbb T$, such that  the superposition $f\circ h$ is in the Sobolev space $W_2^{1/2}(\mathbb T)$.  We obtain new results on simultaneous improvement of functions by a single  change of variable in relation ...
Added: May 14, 2026
Пространства Соболева $W_{p}^{1}(\mathbb{R}^{n})$ на $d$-толстых замкнутых подмножествах $\mathbb{R}^{n}$
Tyulenev A., Водопьянов С. К., Математический сборник 2020 Т. 211 № 6 С. 40–94
Пусть $S \subset \mathbb{R}^{n}$ -- замкнутое непустое множество такое, что для некоторых $d \in [0,n]$ и $\varepsilon > 0$ $d$-вместимость по Хаусдорфу $\mathcal{H}^{d}_{\infty}(S \cap Q(x,r)) \geq \varepsilon r^{d}$ для всех кубов $Q(x,r)$ с центрами в $x \in S$ и длинами ребер $2r \in (0,2]$. Для каждого $p>\max{1,n−d}$ мы даем внутреннюю характеризацию пространства следов $W_{p}^{1}(\mathbb{R}^{n})|_{S}$ на множестве ...
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При $p \in (1,\infty)$ пусть $(X,d,\mu)$ – метрическое пространство с равномерно локально удваивающей мерой μ, допускающее слабое локальное $(1,p)$-неравенство Пуанкаре. При каждом $\theta \in [0,p)$ мы характеризуем след пространства Соболева $W_{p}^{1}(X)$ на замкнутых множествах $S \subset X$, удовлетворяющих условию регулярности $\theta$-коразмерностного обхвата снизу. В частности, если пространство $(X,d,\mu)$ является $Q$-регулярным по Альфорсу при некоторых $Q ...
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The Bohr--Pal Theorem and the Sobolev Space W_2^{1/2}
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The well-known Bohr--Pal theorem asserts that for every continuous real-valued function f on the circle T there exists a change of variable, i.e., a homeomorphism h of T onto itself, such that the Fourier series of the superposition foh converges uniformly. Subsequent improvements of this result imply that actually there exists a homeomorphism that brings f into the Sobolev space W_2^{1/2}(T). This ...
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The Bohr--Pal Theorem and the Sobolev Space W_2^{1/2}
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The well-known Bohr--Pal theorem asserts that for every continuous real-valued function f on the circle T there exists a change of variable, i.e., a homeomorphism h of T onto itself, such that the Fourier series of the superposition f o h converges uniformly. Subsequent improvements of this result imply that actually there exists a homeomorphism ...
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Эта книга адресуется математикам, которые занимаются уравнениями в частных производных и функциональным анализом. Первые две главы содержат вводные курсы. В главе I это теория пространств H s бесселевых потенциалов (s ∈ ; при s 0 это пространства W2  С. Л. Соболева––Л. Н. Слободецкого). В главе II –– теория общих эллиптических уравнений и задач в этих пространствах ...
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Hessian metrics, CD(K,N)-spaces, and optimal transportation of log-concave measures
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Работа связана с изучением соболевской регулярности отображений оптимальной транспортировки в бесконечномерных пространствах, наделенных гауссовской мерой. Найдены условия принадлежности соболевскому  классу для таких отображений. Доказана формула замены переменных. ...
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