Zobrazeno 1 - 10
of 401
pro vyhledávání: '"Nystedt, Å"'
Publikováno v:
Advanced Modeling and Simulation in Engineering Sciences 8, 11 (2021)
A multiscale model for real-time simulation of terrain dynamics is explored. To represent the dynamics on different scales the model combines the description of soil as a continuous solid, as distinct particles and as rigid multibodies. The models ar
Externí odkaz:
http://arxiv.org/abs/2011.00459
We extend the classical construction by Noether of crossed product algebras, defined by finite Galois field extensions, to cover the case of separable (but not necessarily finite or normal) field extensions. This leads us naturally to consider non-un
Externí odkaz:
http://arxiv.org/abs/2001.05164
Akademický článek
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Akademický článek
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Autor:
Nystedt, Helene Liepelt, Grønlien, Krister Gjestvang, Rolfsnes, Rebekka Rekkedal, Winther-Larsen, Hanne Cecilie, Løchen Økstad, Ole Andreas, Tønnesen, Hanne Hjorth
Publikováno v:
In Biofilm December 2023 5
Autor:
Nystedt, Patrik
We use Taylor's formula with Lagrange remainder to prove that functions with bounded second derivative are rectifiable in the case when polygonal paths are defined by interval subdivisions which are equally spaced. We discuss potential benefits for s
Externí odkaz:
http://arxiv.org/abs/1904.07006
Autor:
Nystedt, Patrik
We use Taylor's formula with Lagrange remainder to make a modern adaptation of Poisson's proof of a version of the fundamental theorem of calculus in the case when the integral is defined by Euler sums, that is Riemann sums with left (or right) endpo
Externí odkaz:
http://arxiv.org/abs/1902.06216
Autor:
Nystedt, Patrik
We gather some classical results and examples that show strict inclusion between the families of unital rings, rings with enough idempotents, rings with sets of local units, locally unital rings, s-unital rings and idempotent rings.
Externí odkaz:
http://arxiv.org/abs/1809.02117
Autor:
Nystedt, Patrik
We obtain sufficient criteria for simplicity of systems, that is, rings $R$ that are equipped with a family of additive subgroups $R_s$, for $s \in S$, where $S$ is a semigroup, satisfying $R = \sum_{s \in S} R_s$ and $R_s R_t \subseteq R_{st}$, for
Externí odkaz:
http://arxiv.org/abs/1805.11955
We introduce the class of partially invertible modules and show that it is an inverse category which we call the Picard inverse category. We use this category to generalize the classical construction of crossed products to, what we call, generalized
Externí odkaz:
http://arxiv.org/abs/1805.07812