Results 41 to 50 of about 6,368 (219)

Effect of extremely low-frequency magnetic fields on light-induced electric reactions in wheat

open access: yesPlant Signaling & Behavior, 2022
Magnetic field oscillations resulting from atmospheric events could have an effect on growth and development of plants and on the responsive reactions of plants to other environmental factors.
Marina Grinberg   +9 more
doaj   +1 more source

Dimer models and conformal structures

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 2, Page 340-446, February 2026.
Abstract Dimer models have been the focus of intense research efforts over the last years. Our paper grew out of an effort to develop new methods to study minimizers or the asymptotic height functions of general dimer models and the geometry of their frozen boundaries.
Kari Astala   +3 more
wiley   +1 more source

ABOUT HERITAGE PRESERVATION OF N.I. LOBACHEVSKY BY KAZAN MATHEMATICIANS AND ABOUT THE HISTORY OF THE CREATION OF THE MUSEUM OF N.I. LOBACHEVSKY AT KAZAN UNIVERSITY [PDF]

open access: yes, 2017
Статья посвящена истории сохранения наследия Н.И. Лобачевского казанскими математиками и истории создания музея Н.И. Лобачевского в Казанском университете.The article is devoted to the history of heritage preservation N.
Широкова О.А.
core  

A manifold of pure Gibbs states of the Ising model on the Lobachevsky plane

open access: yes, 2015
25 pages, 7 figuresIn this paper we construct many 'new' Gibbs states of the Ising model on the Lobachevsky plane, the millefeuilles. Unlike the usual states on the integer lattices, our foliated states have infinitely many interfaces. The interfaces are
Gandolfo, Daniel   +2 more
core   +1 more source

Quantum-Mechanical Scattering Problem in Lobachevsky Space at Low Energies

open access: yes, 2022
Based on the use of the asymptotics for the wave function of a scattered particle in a Lobachevsky space in a form close to the asymptotics in flat space, general formulas for the theory of quantum mechanical scattering in this space are derived.
Kurochkin, Yu. A.   +3 more
core   +1 more source

Exploring Subjective Sleepiness with UnnCyberpsy, a Web-Based Psychophysiological Research Tool

open access: yesJournal on Interactive Systems
The foundation of scientific research lies in robust data collection methodologies, increasingly embracing a data-driven paradigm within the realm of psychological studies.
Valeriia Demareva   +4 more
doaj   +1 more source

Search for new apatite-like phases for lead utilization based on crystal structure and thermal expansion [PDF]

open access: yesJournal of the Serbian Chemical Society
Apatites, being one of the most numerous mineral-like families of compounds, are considered as a matrix for binding lead ions, which is dangerous for the biosphere.
Bulanov Evgeny N.   +4 more
doaj   +1 more source

BOUNDARY REPRESENTATION FOR LOBACHEVSKY SPACES

open access: yesTambov University Reports. Series: Natural and Technical Sciences, 2016
For canonical representations on a Lobachevsky space, a description of distributions concentrated at the boundary is given.
openaire   +2 more sources

Curvature‐dimension condition of sub‐Riemannian α$\alpha$‐Grushin half‐spaces

open access: yesTransactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.
Abstract We provide new examples of sub‐Riemannian manifolds with boundary equipped with a smooth measure that satisfy the RCD(K,N)$\mathsf {RCD}(K, N)$ condition. They are constructed by equipping the half‐plane, the hemisphere and the hyperbolic half‐plane with a two‐dimensional almost‐Riemannian structure and a measure that vanishes on their ...
Samuël Borza, Kenshiro Tashiro
wiley   +1 more source

ABOUT THE RELATIONSHIP BETWEEN LOBACHEVSKY AND GAUSS (THE 225-TH ANNIVERSARY OF N.I. LOBACHEVSKY AND 240-TH ANNIVERSARY OF K.F. GAUSS) [PDF]

open access: yes, 2017
В работе на основе новых документов обсуждается история вопроса о взаимоотношениях Лобачевского и Гаусса, избрания Лобачевского членом-корреспондентом Гёттингенского научного общества.The paper discusses the history of the question of the Lobachevsky and
Гильмуллин М.Ф.
core  

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