Zobrazeno 1 - 10
of 228
pro vyhledávání: '"Crasmareanu Mircea"'
Autor:
Crasmareanu Mircea
Publikováno v:
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, Vol 31, Iss 2, Pp 61-70 (2023)
We introduce and study a new curvature function for plane curves inspired by the weighted mean curvature of M. Gromov. We call it rotational being the difference between the usual curvature and the inner product of the normal vector field and the ang
Externí odkaz:
https://doaj.org/article/32e83f73a21b47e1a4f57db8c98f1c75
Autor:
Crasmareanu Mircea
Publikováno v:
Acta Universitatis Sapientiae: Mathematica, Vol 9, Iss 2, Pp 275-282 (2017)
We consider the paracomplex version of the notion of mixed linear spaces introduced by M. Jurchescu in [4] by replacing the complex unit i with the paracomplex unit j, j2 = 1. The linear algebra of these spaces is studied with a special view towards
Externí odkaz:
https://doaj.org/article/1c328b73ff70469ea426deb0517e27f8
Autor:
Crasmareanu Mircea
Publikováno v:
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, Vol 25, Iss 2, Pp 85-99 (2017)
The aim of this paper is to produce new examples of Riemannian and Finsler structures having as model a scalar deformation of conics inspired by the scaling transformation. It continues [4] from the point of view of relationship between quadratic pol
Externí odkaz:
https://doaj.org/article/b7cb7cda1c334d619c92b1d92518889b
Autor:
Crasmareanu Mircea, Popescu Marcela
Publikováno v:
ITM Web of Conferences, Vol 34, p 03004 (2020)
The aim of this paper is to introduce some products, induced by the quaternionic product, on the set of equilateral hyperbolas. The study is a mix of elements from Euclidean and projective geometry. Some properties of these products are highlighted a
Externí odkaz:
https://doaj.org/article/c99ce1af2ff04573ab44809ea7c4b3cf
Autor:
CRASMAREANU, MIRCEA1 mcrasm@uaic.ro, PIȘCORAN, LAURIAN-IOAN2 gjarcmg.editor@gmail.com
Publikováno v:
Carpathian Journal of Mathematics. 2025, Vol. 41 Issue 1, p89-93. 5p.
Autor:
CRASMAREANU, Mircea1 mcrasm@uaic.ro
Publikováno v:
Turkish Journal of Mathematics. 2024, Vol. 48 Issue 4, p749-756. 8p.
Autor:
Crasmareanu, Mircea1 (AUTHOR) mcrasm@uaic.ro
Publikováno v:
Axioms (2075-1680). Feb2024, Vol. 13 Issue 2, p104. 9p.
Autor:
Crasmareanu, Mircea, Güler, Sinem
The aim of this short note is to produce new examples of geometrical flows associated to a given Riemannian flow $g(t)$. The considered flow in covariant symmetric $2$-tensor fields will be called Ricci-Yamabe map since it involves a scalar combinati
Externí odkaz:
http://arxiv.org/abs/1706.09368
Autor:
Crasmareanu, Mircea
This short note concerns with two inequalities in the geometry of gradient Ricci solitons $(g, f, \lambda )$ on a smooth manifold $M$. These inequalities provide some relationships between the curvature of the Riemannian metric $g$ and the behavior o
Externí odkaz:
http://arxiv.org/abs/1706.08261
Autor:
Hretcanu, Cristina E.1 (AUTHOR) cristina.hretcanu@fia.usv.ro, Crasmareanu, Mircea2 (AUTHOR) mcrasm@uaic.ro
Publikováno v:
Mathematics (2227-7390). Jul2023, Vol. 11 Issue 14, p3046. 13p.