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Regular version of the site
Of all publications in the section: 4 012
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Working paper
Alexeeva M., Bermúdez-Margaretto B., Myachykov A. et al. BioRxiv. http://dx.doi.org/. Cold Spring Harbor Laboratory, 2020
Both linguistic (e.g., words, syntax) and extralinguistic (e.g., voice quality) information needs to be considered by interlocutors during linguistic communication. The effects of extralinguistic information on neural sentence processing are particularly poorly understood. Here, we used EEG and passive non-attend design with visual distraction in order to investigate how extralinguistic information affects brain activity during syntactic processing. We collected ERPs while participants listened to Russian pronoun-verb phrases recorded in either male or female voice. We manipulated congruency between the grammatical gender signaled by the verb’s ending and the speaker’s apparent gender. We registered both early and late phrase processing signatures in the incongruent conditions including ELAN (peaking at ~150 ms) and N400. Our data suggest a high degree of automaticity in integrating extralinguistic information during syntactic processing indicating existence of a rapid automatic syntactic integration mechanism sensitive to both linguistic and extralinguistic information.
Added: Oct 12, 2020
Working paper
Prokhorov Y., Shramov K. math. arxive. Cornell University, 2017
We study automorphism groups and birational automorphism groups of compact complex surfaces. We show that the automorphism group of such surface X is always Jordan, and the birational automorphism group is Jordan unless X is birational to a product of an elliptic and a rational curve.
Added: Aug 22, 2017
Working paper
Prokhorov Y., Shramov K. math. arxive. Cornell University, 2018
We prove that automorphism groups of Inoue and primary Kodaira surfaces are Jordan.
Added: Jun 8, 2019
Working paper
Shramov K., Prokhorov Y. math. arxive. Cornell University, 2019
We show that automorphism groups of Moishezon threefolds are always Jordan.
Added: Jun 8, 2019
Working paper
Shramov K. math. arxive. Cornell University, 2020
We classify finite groups acting by birational transformations of a non-trivial Severi--Brauer surface over a field of characteristc zero that are not conjugate to subgroups of the automorphism group. Also, we show that the automorphism group of a smooth cubic surface over a field K of characteristic zero that has no K-points is abelian, and find a sharp bound for the Jordan constants of birational automorphism groups of such cubic surfaces.
Added: Aug 19, 2020
Working paper
Gayfullin S. math. arxive. Cornell University, 2018. No. arXiv:1709.09237.
In 2007, Dubouloz introduced Danielewski varieties. Such varieties general- ize Danielewski surfaces and provide counterexamples to generalized Zariski cancellation problem in arbitrary dimension. In the present work we describe the automorphism group of a Danielewski variety. This result is a generalization of a description of automorphisms of Danielewski surfaces due to Makar-Limanov. 
Added: Sep 1, 2018
Working paper
Kurnosov N., Ясинский Е. math. arxive. Cornell University, 2018
We study groups of bimeromorphic and biholomorphic automorphisms of projective hyperkähler manifolds. Using an action of these groups on some non-positively curved space, we deduce many of their properties, including finite presentation, strong form of Tits' alternative and some structural results about groups consisting of transformations with infinite order.
Added: Dec 2, 2018
Working paper
Shramov K., Vologodsky V. arxiv.org. math. Cornell University, 2018
For a geometrically rational surface X over a perfect field of characteristic different from 2 that contains all roots of 1, we show that either X is birational to a product of a projective line and a conic, or the group of birational automorphisms of X has bounded finite subgroups. As an auxiliary result, we show boundedness of finite subgroups in anisotropic linear algebraic groups of bounded rank and number of connected components. Also, we provide applications to Jordan property for groups of birational automorphisms.
Added: Oct 21, 2018
Working paper
Shramov K., Przyjalkowski V. math. arxive. Cornell University, 2019
We show that smooth well formed weighted complete intersections have finite automorphism groups, with several obvious exceptions.
Added: Nov 19, 2019
Working paper
Turovsky R. F., Луизидис Е. М. Political Science. PS. Высшая школа экономики, 2021
This research is based on theories of federalized party systems, second-order elections and nationalization of party system comparing long-established democratic federations in terms of actual autonomy of their subnational party systems. The study shows that despite obvious prerequisites for subnational autonomy (such as federal institutions, different timing of elections, freedom to establish regional parties and blocs) most federations have created solidly nationalized party systems. Nevertheless, we explore striking differences among the federations in terms of presence and strength of regional parties, while our thorough comparative analysis of electoral turnout and parties support at federal and regional levels of elections reveals that federations are very different and sometimes unique. Also, we see that the theory of second-order elections does not work consistently which in our point of view means the decisive role of regional agenda and emphasizes the presence of national parties consistently inclined to local politics. We conclude that the development of partially autonomous subnational party systems and biases of electoral outcomes in federal and regional elections depend on the historical evolution of political institutions in the state rather than create similar patterns across the federations.
Added: Jan 26, 2021
Working paper
Agasisti T., Shibanova E. Economics. EC. Высшая школа экономики, 2020
This paper studies the relationship between university institutional autonomy (both formal and informal) and their performance and efficiency using multi-stage empirical methodology. First, we measure an “autonomy-in-use” index, and then we employ Data Envelopment Analysis in order to evaluate institutional efficiency. Lastly, we use a panel fixed effect regression and an instrumental variable approach to provide robust evidence for the relationship between institutional autonomy, performance and efficiency. We find that formal status of autonomy does not predict higher publication activity or efficiency. However, the findings also reveal that informal autonomy is positively associated with efficiency scores, and advanced practices in staff management can contribute to increases in publication activity and overall institutional efficiency.
Added: Sep 8, 2020
Working paper
Панюшева Т. Д., Efremova M. PSYCHOLOGY. WP BRP. Издательский дом НИУ ВШЭ, 2012. No. 4.
The aim of this study is to validate a Russian version of the Schwartz Value Survey using cognitive interviewing. This paper aims to explore the issue of whether respondents interpret the values proposed in the survey in the way intended by the author. An analysis of the results reveals problems with understanding the wording, which are due both to subtle differences in translation and the cultural context. The findings of the qualitative analysis allow for a better understanding of the quantitative data. A number of recommendations are given to the researchers applying this Russian-language SVS.
Added: Dec 13, 2012
Working paper
Carneiro P., Lokshin M., Ridao-Cano C. Policy Research Working Paper. WPS. World Bank Group, 2011. No. 5878.
This paper estimates average and marginal returns to schooling in Indonesia using a non-parametric selection model estimated by local instrumental variables, and data from the Indonesia Family Life Survey. The analysis finds that the return to upper secondary schooling varies widely across individual: it can be as high as 50 percent per year of schooling for those very likely to enroll in upper secondary schooling, or as low as -10 percent for those very unlikely to do so. Returns to the marginal student (14 percent) are well below those for the average student attending upper secondary schooling (27 percent).
Added: Oct 26, 2012
Working paper
Granin S., Maximov Y. math. arxive. Cornell University, 2015
Added: Oct 30, 2015
Working paper
Hassanpour N. Comparative Politics. PS. academia.edu, 2016
Why did the Russian experiment with electoral democracy fail in the early Twentieth century? I examine the results of the elections to the first Duma in 1906 on the province (Guberniya) level in conjunction with the socioeconomic data from the 1897 national census, in order to show that at the onset of the first Duma elections, economic class partitions, an emblem of the radical oppositional campaign, mapped only onto the Center Right party politics of the Octobrists, not the rest of the political spectrum. The Bolshevik vote distribution on the Guberniya level in the 1917 elections to the Constituent Assembly, on the other hand, reveals significant correlations with those of the Octobrists’ in 1906. For both parties, the industrial sector, in contrast to the agricultural workforce, provided a significant boost in the votes. The same reinforcing link between the electorate and the Duma was severed, following interventions in favor of the landed elite from 1907 onward.
Added: Dec 14, 2016
Working paper
Anton Afanasiev. Humanities. HUM. Basic Research Programme, 2017
This study aims to present that A.V. Mikhailov’s historical method is systematic. Special attention is given to historical-anthropological dimension of the A. V. Mikhailov's theory of baroque. The article shows that Mikhailov's historical anthropology should be viewed as a constitutive part of his “Kulturwissenschaft”, opposed both to the literary science and to the positivist historiography by means of commitment to historize human sciences (the notion of «new historiсism»).
Added: Oct 20, 2017
Working paper
Smyth R., Sobolev A. S., Soboleva I. V. Political Science. PS. Высшая школа экономики, 2012. No. WP BRP 05/PS/2012.
The paper illustrates the governement’s agility in response to opposition protests and the debacle of parliamentary elections. We explore the evolution of Kremlin strategies from a reliance on cooptation to more coercive strategies—a trend that continued after Putin’s election in March. These strategies were successful in mobilizing core voters, creating common identity among participants, and containing the electoral effects of the opposition protests. However, the governement’s’s strategy also embodied significant costs that are likely to have longer-term influences and did little to build a true movement of regime loyalists. The Kremlin’s rigid definition of both the symbols and rhetoric of Putinism left little room for participants to participate in the production of symbols and language. While the narratives imposed from above help Putin’s supporters to participate in political life in limited ways, they remain unable to formulate and articulate independent political positions. As a result, supporters remain highly dependent on the state. Deprived of the benefit of hearing supporters’ demands, this strategy also leaves the state in peril of further losing touch with its political base.
Added: Jan 22, 2013
Working paper
Loktev S., Kato S. math. arxive. Cornell University, 2017. No. 1712.03508.
We construct a filtration on integrable highest weight module of an affine Lie algebra whose adjoint graded quotient is a direct sum of global Weyl modules. We show that the graded multiplicity of each Weyl module there is given by a corresponding level-restricted Kostka polynomial. This leads to an interpretation of level-restricted Kostka polynomials as the graded dimension of the space of conformal coinvariants. In addition, as an application of the level one case of the main result, we realize global Weyl modules of current algebras of type ADE in terms of Schubert manifolds of thick affine Grassmanian, as predicted by Boris Feigin.
Added: Dec 11, 2017
Working paper
Beklemishev L. D., Dmitrieva A., Makowsky J. math. arxive. Cornell University, 2020
We provide a variant of an axiomatization of elementary geometry based on logical axioms in the spirit of Huzita--Justin axioms for the Origami constructions. We isolate the fragments corresponding to natural classes of Origami constructions such as Pythagorean, Euclidean, and full Origami constructions. The sets of Origami constructible points for each of the classes of constructions provides the minimal model of the corresponding set of logical axioms. Our axiomatizations are based on Wu's axioms for orthogonal geometry and some modifications of Huzita--Justin axioms. We work out bi-interpretations between these logical theories and theories of fields as described in J.A. Makowsky (2018). Using a theorem of M. Ziegler (1982) which implies that the first order theory of Vieta fields is undecidable, we conclude that the first order theory of our axiomatization of Origami is also undecidable.
Added: Apr 14, 2021
Working paper
Sobotka T., Jasilioniene A., Galarza A. A. et al. . . SocArXiv, 2021
Past evidence on fertility responses to external shocks, including economic recessions and the outbreaks of infectious diseases, show that people often put their childbearing plans on hold in uncertain times. We study the most recent data on monthly birth trends to analyse the initial fertility responses to the outbreak of the COVID-19 pandemic. Our research, based on new Short-Term Fertility Fluctuations (STFF) data series (https://www.humanfertility.org/cgi-bin/stff.php), embedded in the Human Fertility Database (HFD), shows the initial signs of the expected “birth recession”. Monthly number of births in many countries fell sharply between October 2020 and the most recent month observed, often bringing about a clear reversal of the previous trend. Across 17 countries with lower fluctuations in births, the number of births fell on average by 5.1% in November 2020, 6.5% in December 2020 and 8.9% in January 2021 when compared with the same month of the previous year. Spain sustained the sharpest drop in the number of births among the analysed countries, with the number of births plummeting by 20% in December 2020 and January 2021. The combined effect of rising mortality and falling birth rates is disrupting the balance of births and deaths in many countries, pushing natural population increase to record low levels in 2020 and 2021.
Added: Mar 29, 2021
Working paper
Dagaev D., Schurov I. arxiv.org. math. Cornell University, 2019
Bachet's game is a variant of the game of Nim. There are n objects in one pile. Two players make moves one after another. On every move, a player is allowed to take any positive number of objects not exceeding some fixed number m. The player who takes the last object loses. We consider a variant of Bachet's game in which each move is a lottery over set {1,2,…,m}. Outcome of a lottery is the number of objects that player takes from the pile. We show that under some nondegenericity assumptions on the set of available lotteries the probability that the first player wins in subgame perfect Nash equilibrium converges to 1/2 as n tends to infinity.
Added: Mar 22, 2019