National Research University – Higher School of Economics

About: National Research University – Higher School of Economics is a education organization based out in Moscow, Russia. It is known for research contribution in the topics: Population & Politics. The organization has 12873 authors who have published 23376 publications receiving 256396 citations.

Internal solitary waves: propagation, deformation and disintegration

Abstract: . In coastal seas and straits, the interaction of barotropic tidal currents with the continental shelf, seamounts or sills is often observed to generate large-amplitude, horizontally propagating internal solitary waves. Typically these waves occur in regions of variable bottom topography, with the consequence that they are often modeled by nonlinear evolution equations of the Korteweg-de Vries type with variable coefficients. We shall review how these models are used to describe the propagation, deformation and disintegration of internal solitary waves as they propagate over the continental shelf and slope.

First Observation of the Doubly Charmed Baryon Decay Ξcc + + → Ξc+ π+

Abstract: The doubly charmed baryon decay Ξcc++→Ξc+π+ is observed for the first time, with a statistical significance of 5.9σ, confirming a recent observation of the baryon in the Λc+K-π+π+ final state. The data sample used corresponds to an integrated luminosity of 1.7 fb-1, collected by the LHCb experiment in pp collisions at a center-of-mass energy of 13 TeV. The Ξcc++ mass is measured to be 3620.6±1.5(stat)±0.4(syst)±0.3(Ξc+) MeV/c2 and is consistent with the previous result. The ratio of branching fractions between the decay modes is measured to be [B(Ξcc++→Ξc+π+)×B(Ξc+→pK-π+)]/[B(Ξcc++→Λc+K-π+π+)×B(Λc+→pK-π+)]=0.035±0.009(stat)±0.003(syst).

Egalitarianism, Cultural Distance, and Foreign Direct Investment: A New Approach

Abstract: This study addresses an apparent impasse in the research on organizations’ responses to cultural distance. We posit that cross-country differences in egalitarianism—a cultural orientation manifested in intolerance for abuses of market and political power and support for protection of less powerful actors—affect multinational firms’ choices of destinations for foreign direct investment FDI. Using historically motivated instrumental variables, we observe that egalitarianism distance has a negative causal impact on FDI flows. This effect is robust to a broad set of competing accounts, including the effects of other cultural dimensions, various features of the prevailing legal and regulatory regimes, other features of the institutional environment, economic development, and time-invariant unobserved characteristics of origin and host countries. We further show that egalitarianism correlates in a conceptually compatible way with an array of organizational practices pertinent to firms’ interactions with nonfinancial stakeholders, such that national differences in these egalitarianism-related features may affect firms’ international expansion decisions.

Quadruply-graded colored homology of knots

Abstract: We conjecture the existence of four independent gradings in colored HOMFLYPT homology, and make qualitative predictions of various interesting structures and symmetries in the colored homology of arbitrary knots. We propose an explicit conjectural description for the rectangular colored homology of torus knots, and identify the new gradings in this context. While some of these structures have a natural interpretation in the physical realization of knot homologies based on counting supersymmetric configurations (BPS states, instantons, and vortices), others are completely new. They suggest new geometric and physical realizations of colored HOMFLYPT homology as the Hochschild homology of the category of branes in a Landau–Ginzburg B-model or, equivalently, in the mirror A-model. Supergroups and supermanifolds are surprisingly ubiquitous in all aspects of this work.