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News
October 1, 2026
HSE Researchers Show How Congenital Motor Disorders Affect Brain Development
Researchers from HSE University’s Institute for Cognitive Neuroscience have synthesised the findings of their previous studies on brain development in children with obstetric brachial plexus palsy and arthrogryposis. Their analysis shows that impaired motor function in early childhood not only limits children’s motor experience but also affects memory, categorical thinking, and information processing. The study has been published in Frontiers in Psychology.
October 1, 2026
Window into the Body: Scientists Develop Neural Network to Detect Risk of 15 Diseases from Retinal Images
Russian universities, with the participation of HSE University, Sber, and Z-union, have developed a neural network that can simultaneously assess the risk of 15 types of pathology from retinal photographs, including not only eye diseases but also cardiovascular conditions. The AI system can help clinicians detect potentially concerning changes at an early stage, identify signs reflecting the condition of retinal blood vessels, and determine whether a patient may need further examination. The paper has been published in Frontiers in Medicine.
September 30, 2026
'We Did Not Limit the Time for Questions'
The International Laboratory for Supercomputer Atomistic Modelling and Multi-Scale Analysis at HSE University held a major conference on molecular dynamics. Participants had the opportunity to attend all the presentations, while speakers were given as much time as they needed to answer questions. The HSE News Service interviewed Grigory Smirnov, Head of the Laboratory, and Genri Norman, Chief Research Fellow, about the conference preparations and the discussions it generated.

 

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Циклы из игрушечных обезьянок и игральных кубиков

Наука и жизнь. 2022. № 11. С. 104–105.
Poddiakov A.
Research target: Mathematics Physics
Language: Russian
Text on another site
Keywords: механиканетранзитивность превосходстваигрушки
Similar publications
Search for the Decay B+ -> K+ tau+ tau- Using Data from the Belle and Belle II Experiments
Bodrov D., Pakhlov P., Pakhlova G. et al., Physical Review Letters 2026 Vol. 137 Article 051805
We report a search for the rare decay B+ -> K+ tau+ tau- using 1.2 x 10^9 Upsilon(4S) mesons produced near threshold in electron-positron collisions and collected by the Belle and Belle II experiments. We fully reconstruct the hadronic decay of one B meson produced in the Upsilon(4S) -> B+ B- decay, and search for ...
Added: October 1, 2026
Observation of the Radiative Decay D*_s0(2317)+ -> D*+_s gamma
Bodrov D., Aushev Т., Abumusabh М., Physical Review A: Atomic, Molecular, and Optical physics 2026 No. 136 Article 241901
We report the first observation of the radiative decay D*_s0(2317)+ -> D*+_s gamma with a statistical significance exceeding 10 standard deviations. The signal is observed in the continuum e+ e- -> c c-bar process, using combined data samples of 980.4 fb^-1 from Belle and 427.9 fb^-1 from Belle II, collected at the KEKB and SuperKEKB ...
Added: October 1, 2026
First measurements of the branching fractions for the decay modes Ξ0𝑐 →Λ⁢𝜂 and Ξ0𝑐 →Λ⁢𝜂′ and search for the decay Ξ0𝑐 →Λ⁢𝜋0 using Belle and Belle II data
Bodrov D., Pakhlova G., Aushev Т. et al., Physical Review A: Atomic, Molecular, and Optical physics 2026 Vol. D 113 Article 032015
Using data samples of 988.4 fb^-1 and 427.9 fb^-1 collected with the Belle and Belle II detectors, we present a study of the singly Cabibbo-suppressed decays Xi0_c -> Lambda eta, Lambda eta', and Lambda pi0. We observe the decay Xi0_c -> Lambda eta and find evidence for the decay Xi0_c -> Lambda eta', with corresponding ...
Added: October 1, 2026
Study of e+e− → π +π −Υ(1D) at Belle II
Pakhlov P., Pakhlova G., Bodrov D. et al., Journal of High Energy Physics 2026 Article 278
The bottomonium spectrum, consisting of bound states of a b quark and an anti-b quark, provides an excellent laboratory for probing quantum chromodynamics in the non-perturbative regime. While S and P-wave bottomonium states are well studied experimentally, information on D-wave states remains scarce. We search for the D-wave bottomonium states Upsilon_2(1D) and Upsilon_3(1D) via the ...
Added: October 1, 2026
Measurement of time-dependent CP violation parameters in B 0 → KS0π 0γ decays at Belle and Belle II
Bodrov D., Pakhlova G., Uglov T. et al., Journal of High Energy Physics 2026 Vol. 09 No. 216
We perform a measurement of time-dependent CP violation parameters in B0 -> KS0 pi0 gamma decays using a dataset of approximately 772 x 10^6 and 521 x 10^6 Upsilon(4S) decays collected by the Belle and Belle II experiments, respectively. The measured parameters for the combined dataset in the K0(892) dominated region (M_KS0pi0 in [0.8, 1.0] ...
Added: October 1, 2026
Searches for Charged-Lepton-Flavor Violation in χbJð1PÞ Decays
Pakhlov P., Pakhlova G., Bodrov D. et al., Physical Review Letters 2026 No. 137 Article 071803
We report the first searches for charged-lepton-flavor violation in decays of chi_bJ(1P) (J = 0, 1, and 2) to a pair of charged leptons using 158 million Y(2S) decays collected with the Belle detector in e+ e- collisions at the KEKB collider. No significant signal is observed, and we set upper limits on the branching ...
Added: October 1, 2026
Консервативные энтропийно и энергетически корректные разностные методы для одномерных квазигазодинамических систем уравнений
Zlotnik A., Математические заметки 2026 Т. 120 № 6 С. 1005–1009
Численным методам решения систем газодинамических уравнений посвящена обширная литература. Ранее было разработано и успешно апробировано специальное семейство симметричных по пространству  консервативных разностных методов, основанных на предварительной кинетической, точнее, квазигазодинамической (КГД), регуляризации этих уравнений. Актуальной задачей является построение численных методов, которые обладают не только свойством консервативности по массе, импульсу и полной энергии, но и удовлетворяют условиям энтропийной ...
Added: October 1, 2026
On some arithmetic conditions of recurrent sequences modulo prime p
Vyugin I. V., Sashadhar D., Algebra and Number Theory 2026 P. 1–10
We study the K-Fibonacci sequence Fp modulo prime p. Cardinalities of sets |Fp+Fp| and |Fp⋅Fp| are estimated. We present the method of estimating doubling constant of some m-dimensional recurrent sets in Fp. ...
Added: October 1, 2026
Fractional Macroscopic Fluctuation Theory for a Superdiffusive Ginzburg-Landau dynamics
Bernardin C., João P. M., Gonçalves P., PROBABILITY AND MATHEMATICAL PHYSICS 2026 P. 59–59
We investigate a boundary-driven Ginzburg-Landau dynamics with long-range interactions. In the hydrodynamic limit, the macroscopic evolution is governed by a fractional heat equation with Dirichlet boundary conditions, while the corresponding stationary profile is characterized by a fractional Laplace equation. We establish a dynamical large deviations principle for the empirical measure and derive the associated stationary ...
Added: October 1, 2026
Long-time behaviour of dynamical systems driven by bounded mixing noises
Kuksin S., Dynamical Systems 2026
We study the mixing properties of discrete-time and continuous-time dissipative dynamical systems driven by bounded mixing random forces. The continuous-time systems are reduced to discrete-time random dynamical systems generated by time-one maps, so that the main analysis is carried out in the discrete setting. We introduce a class of mixing random forcings whose regular conditional distributions with ...
Added: October 1, 2026
Markovian reduction and exponential mixing in total variation for random dynamical systems
Kuksin S., Shirikyan A., Journal of Dynamics and Differential Equations 2026 P. 1098–1100
The paper deals with the problem of large-time behaviour of trajectories for discrete-time dynamical systems driven by a random noise. Assuming that the phase space is finite-dimensional and compact, and the noise is a Markov process with a transition probability satisfying some regularity hypotheses, we prove that all the trajectories converge to a unique measure ...
Added: October 1, 2026
Bounds on the derivatives of the log-cumulative distribution function of the multivariate normal distribution
Potanin B., Dolgikh S., Statistics and Probability Letters 2026 Article 110984
We derive bounds on the gradient and Hessian of the log-CDF, ln F(x), of the multivariate normal distribution. These bounds scale linearly and quadratically in ‖x‖ , respectively, with constants depending only on the covariance matrix. We demonstrate the usefulness of these bounds by proving asymptotic normality of the maximum-likelihood estimator of the multivariate probit ...
Added: October 1, 2026
Asymptotics of Spectrum and Quantum Averages of the Hydrogen Atom in a Magnetic Field Near the Upper Boundaries of Spectral Clusters
A. V. Pereskokov, Journal of Mathematical Sciences 2026 Vol. 302 No. 4 P. 531–545
We consider the Zeeman effect problem for the hydrogen atom in a magnetic field using irreducible representations of the Karasev–Novikova algebra with quadratic commutation relations. We find the asymptotics of a series of eigenvalues and the corresponding asymptotic eigenfunctions near the upper boundaries of spectral clusters. ...
Added: October 1, 2026
Simultaneous approximation of the score function and its derivatives by deep neural networks
Yakovlev K., Puchkin N., Journal of Complexity 2026 Vol. 97
We present a theory for simultaneous approximation of the score function and its derivatives, enabling the handling of data distributions with low-dimensional structure and unbounded support. Our approximation error bounds match those in the literature while relying on assumptions that relax the usual bounded support requirement. Crucially, our bounds are free from the curse of ...
Added: September 30, 2026
Conservative Entropy and Energy Correct Difference Methods for One-Dimensional Quasi-Gasdynamic Systems of Equations
Zlotnik A., Mathematical notes 2026 Vol. 120 No. 6 P. 1174–1178
Numerical methods for solving systems of gas dynamic equations are the subject of a vast literature. A special family of spatially symmetric conservative difference methods based on preliminary kinetic, or quasi-gasdynamic (QGD), regularization of these equations was constructed and successfully tested. A pressing issue is the construction of numerical methods that are not only conservative ...
Added: September 30, 2026
Small area quantum-dot stripe lasers with focused-ion-beam-etched mirrors
Obraztsova Anna, Fominykh Nikita, Komarov Sergey et al., Applied Physics Letters 2026 Vol. 129 Article 132110
Miniaturization of edge-emitting quantum-dot lasers is hampered by increased mirror losses in ultra-short Fabry–Perot cavities and limited modal gain of quantum dots (QDs). Here, we demonstrate electrically injected InGaAs/GaAs quantum-dot stripe lasers with an 8-lm stripe width and focused-ion-beam (FIB)-etched mirrors defining cavity lengths from 300 to 77 lm. The laser cavities were fabricated using ...
Added: September 30, 2026
О числе Пикара и размерности алгебраических однородных пространств
Beldiev I., Тимашёв Д. А., Алгебра и анализ 2026 Т. 38 № 5 С. 1–10
An algebraic variety X is called a homogeneous space if there exists a transitive regular action of an algebraic group on X. We prove inequalities between the dimension of a homogeneous space of a linear algebraic group and its Picard number. ...
Added: September 30, 2026
An archaic reference-free method to jointly infer Neanderthal and Denisovan introgressed segments in modern human genomes,
Planche L., Ilina A., Jay F. et al., Molecular Biology and Evolution 2026 Article 235
Admixture between populations is a common feature of human history. Admixture events introduce new genetic variation that can fuel evolution. Characterizing the significance of admixture events on the evolution of populations across various species is of great interest to evolutionary geneticists. Local Ancestry Inference (LAI) methods infer genetic ancestry of an individual at a particular ...
Added: September 30, 2026
Uniqueness theorem for completely non-degenerate B-groups
Glutsyuk A., Ilyashenko Y., Izvestiya. Mathematics 2026 Vol. 90 No. 1 P. 73–89
We show that a completely non-degenerate B-group is uniquely determined by its factor: two such groups with conformally equivalent factors are Möbius conjugate. A similar property is inherent to the quasi-Fuchsian groups but not to degenerate B-groups. We also study the factor of a B-group as a triple: the main factor, the marked characteristic complex, and a homotopy class of ...
Added: September 30, 2026
Изобретение парадоксальных математических объектов в отношениях «камень, ножницы, бумага»: разнообразие мотиваций, целей, результатов
Poddiakov A., В кн.: Психология познания: материалы Всероссийской научной конференции. ЯрГУ, 6–8 декабря 2024 г. Материалы Всероссийской научной конференции памяти Дж. С. Брунера.: Яр.: ЯрГУ им. П. Г. Демидова, 2024. С. 245–249.
Нетранзитивные отношения превосходства (доминирования) по принципу «камень-ножницы-бумага» представляют, по мнению некоторых авторов, вызов человеческому разуму. Следуя «страсти к парадоксам» и отвечая на вызов, исследователи изобретают всё новые нетранзитивные математические объекты и их типы, а также методично исследуют возможности некоторых уже известных. Обсуждается внешняя и внутренняя мотивация этой деятельности, разнообразие целей по мере продвижения в теме ...
Added: December 24, 2024
Методика «Почему большинство ошиблось?»: мнения решателей о причинах правильных и ошибочных ответов в задачах на нетранзитивность превосходства
Poddiakov A., Вопросы психологии 2024 № 1 С. 84–95
Впервые разработана методика и проведен эксперимент, в котором участникам (n=135) помимо решения задач на логическое следование применительно к ситуациям нетранзитивности превосходства (отношений по принципу игры «камень, ножницы, бумага»: А превосходит В, В превосходит С, С превосходит А) задавалась еще одна задача. Это задача на рефлексию – о причинах правильных и ошибочных решений этих задач другими ...
Added: August 20, 2024
Мнения решателей о причинах правильных и ошибочных ответов в задачах на нетранзитивность превосходства
Poddiakov A., В кн.: Международная конференция «Математика в созвездии наук». К юбилею ректора МГУ академика Виктора Антоновича Садовничего. Тезисы докладов.: М.: Издательство Московского университета, 2024. С. 679–681.
Нетранзитивные отношения превосходства (по принципу «камень, ножницы, бумага») активно изучаются в различных науках: биологии, математике, теории принятия решений, поведенческой экономике, психологии, философии. В настоящее время научно-популярные тексты о нетранзитивности превосходства (например, о нетранзитивных игральных костях, числа на гранях которых таковы, что кости бьют друг друга по кругу) представлены во многих изданиях (начало популяризации этой темы ...
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Метанетранзитивные отношения превосходства между выборками и внутри их подвыборок
Poddiakov A., В кн.: Математическая психология: современное состояние и перспективы. Материалы международной научной конференции, посвященной 90‑летию со дня рождения В.Ю. Крылова. 26–27 октября 2023 г.: М.: Институт психологии РАН, 2023. С. 50–53.
Нетранзитивные отношения превосходства (по принципу игры «камень, ножницы, бумага») встречаются в самых разных областях. Разрабатываются математические модели этих отношений. Интерес здесь могут представлять некоторые теоретические возможности, пока не подтвержденные реальными данными. Вводится понятие метанетранзитивности – нетранзитивных циклов превосходства, внутри которых имеются вложенные циклы превосходства – и т.д. Приведен числовой пример метанетранзитивности 1-го порядка на гипотетическом ...
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Актуальные проблемы математики, механики и информатики 2022: Сборник статей по материалам студенческой конференции (г. Пермь, ПГНИУ, 25 мая – 10 июня 2022 г.)
Пермь: ПГНИУ, 2022.
В сборнике представлены материалы студенческой конференции «Актуальные проблемы математики, механики и информатики 2022», которая проводилась 25 мая – 10 июня 2022 г. в г. Перми. В состав сборника вошли работы студентов, выполненные под руководством ученых Пермского государственного национально исследовательского университета. Работы обладают актуальностью и научной новизной, часто они имеют междисциплинарный характер. Большой блок публикаций связан ...
Added: February 29, 2024
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