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pro vyhledávání: '"A Modin"'
The study of diffeomorphism groups and their applications to problems in analysis and geometry has a long history. In geometric hydrodynamics, pioneered by V.~Arnold in the 1960s, one considers an ideal fluid flow as the geodesic motion on the infini
Externí odkaz:
http://arxiv.org/abs/2411.03265
Evidence has shown green roof fertilizers released by higher intensity rainfalls contribute as a contaminant to local aquifers. To reduce this, biochar is used as an additive in green roof soil substrates as a fertilizer storage and dispersal regulat
Externí odkaz:
http://arxiv.org/abs/2410.06761
We address recovery of the three-dimensional backbone structure of single polypeptide proteins from single-particle cryo-electron microscopy (Cryo-SPA) data. Cryo-SPA produces noisy tomographic projections of electrostatic potentials of macromolecule
Externí odkaz:
http://arxiv.org/abs/2410.00833
Autor:
Modin, Klas, Preston, Stephen C.
Zeitlin's model is a spatial discretization for the 2-D Euler equations on the flat 2-torus or the 2-sphere. Contrary to other discretizations, it preserves the underlying geometric structure, namely that the Euler equations describe Riemannian geode
Externí odkaz:
http://arxiv.org/abs/2408.11204
Autor:
Modin, Klas, Viviani, Milo
Two-dimensional (2-D) incompressible, inviscid fluids produce fascinating patterns of swirling motion. How and why the patterns emerge are long-standing questions, first addressed in the 19th century by Helmholtz, Kirchhoff, and Kelvin. Countless res
Externí odkaz:
http://arxiv.org/abs/2405.14282
Autor:
Modin, Klas, Roop, Michael
We give a structure preserving spatio-temporal discretization for incompressible magnetohydrodynamics (MHD) on the sphere. Discretization in space is based on the theory of geometric quantization, which yields a spatially discretized analogue of the
Externí odkaz:
http://arxiv.org/abs/2311.16045
Autor:
Miguel de Celis, Oskar Modin, Lucía Arregui, Frank Persson, Antonio Santos, Ignacio Belda, Britt-Marie Wilén, Raquel Liébana
Publikováno v:
npj Biofilms and Microbiomes, Vol 10, Iss 1, Pp 1-12 (2024)
Abstract Aerobic granular sludge is a compact and efficient biofilm process used for wastewater treatment which has received much attention and is currently being implemented worldwide. The microbial associations and their ecological implications occ
Externí odkaz:
https://doaj.org/article/436b245e53974fa19be1b289b0fc040c
Autor:
Modin, Klas
Publikováno v:
J. Comput. Dyn., 11 (2024), 442-452
The Sinkhorn algorithm is a numerical method for the solution of optimal transport problems. Here, I give a brief survey of this algorithm, with a strong emphasis on its geometric origin: it is natural to view it as a discretization, by standard meth
Externí odkaz:
http://arxiv.org/abs/2309.09089
Autor:
Borodaenko, Yulia, Pavlov, Dmitriy, Cherepakhin, Artem, Mitsai, Eugeny, Pilnik, Andrei, Syubaev, Sergey, Gurbatov, Stanislav O., Modin, Evgeny, Porfirev, Aleksey P., Khonina, Svetlana N., Shevlyagin, Aleksandr V., Gurevich, Evgeny L., Kuchmizhak, Aleksandr A.
Here, upon systematic studies of femtosecond-laser processing of monocrystalline Si in oxidation-preventing methanol, we showed that the electromagnetic processes dominating at initial steps of the progressive morphology evolution define the onset of
Externí odkaz:
http://arxiv.org/abs/2308.15778
Publikováno v:
Int. Math. Res. Not., 2024 (10), 8839-8855
We introduce and study a simple model capturing the main features of unbalanced optimal transport. It is based on equipping the conical extension of the group of all diffeomorphisms with a natural metric, which allows a Riemannian submersion to the s
Externí odkaz:
http://arxiv.org/abs/2307.05703