Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Daniela Roşca"'
Autor:
Adrian Holhoş, Daniela Roşca
Publikováno v:
Mathematics, Vol 8, Iss 6, p 994 (2020)
We construct a new volume preserving map from the unit ball B 3 to the regular 3D octahedron, both centered at the origin, and its inverse. This map will help us to construct refinable grids of the 3D ball, consisting in diameter bounded cells having
Externí odkaz:
https://doaj.org/article/9219be9ca84347e8a463ced9904cd265
Autor:
Daniela Roşca
Publikováno v:
Journal of Numerical Analysis and Approximation Theory, Vol 34, Iss 2 (2005)
For a given arbitrary triangulation of \(\mathbb R^2\), we construct an interpolating operator which is exact for the polynomials in two variables of total degree \(\leq 2\). This operator is local, in the sense that the information around an interpo
Externí odkaz:
https://doaj.org/article/8986778187644a70a016183f44fe1995
Autor:
Daniela Roşca
Publikováno v:
Journal of Numerical Analysis and Approximation Theory, Vol 32, Iss 1 (2003)
We define a class of matrices which includes, under some natural assumptions, the matrices \(\mathbf{m}\left( 0\right)\), \(\mathbf{m}\left( 1\right)\) and \(T_{2N-1}\), which are the key matrices of the wavelets theory. The matrices of this class ha
Externí odkaz:
https://doaj.org/article/35b017d21d344e0bab9b2313f242b2ad
Autor:
Adrian Holhoş, Daniela Roşca
Publikováno v:
Acta Mathematica Hungarica. 156:182-193
We construct a simple volume-preserving map from the cube [0,b]3 to the tetrahedron $${\{(x,y,z)\in \mathbb R^3}$$ , $${x \geq0}$$ , $${y \geq 0}$$ , $${z \geq 0}$$ , $${x+y+z\leq a\},}$$ with $${a=b\sqrt[3]6}$$ . This map will allow us to construct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab9c1f1701c41a764bf45d7a8c9ef959
https://doi.org/10.1007/s10474-018-0855-2
https://doi.org/10.1007/s10474-018-0855-2
Autor:
Daniela Roşca-Ceban
Publikováno v:
Review of Artistic Education, Vol 16, Iss 1, Pp 182-189 (2018)
The aim of the research is developing of the CISA in FAD course. The acquired skills will enable the creative explanation, understanding of the current artistic principles and the achievement of quality creative products. The research problem is the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a0e378bbb62f047bf5a1c640a3b0bd0
https://doi.org/10.2478/rae-2018-0019
https://doi.org/10.2478/rae-2018-0019
Autor:
Daniela Roşca-Ceban
Publikováno v:
Review of Artistic Education, Vol 16, Iss 1, Pp 223-230 (2018)
The concept of educational development in the Republic of Moldova reveals the political, social and economic transformations, triggered in the republic, which impose the necessity of drawing new ways of developing the education in a creative perspect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d14a6be316a420e6bdde7095d741df0f
https://doi.org/10.2478/rae-2018-0024
https://doi.org/10.2478/rae-2018-0024
Autor:
Daniela Roşca, Adrian Holhoş
Publikováno v:
Symmetry
Volume 11
Issue 11
Volume 11
Issue 11
We construct a volume preserving map U p from the p-ball B p ( r ) = x &isin
R 3 , ∥ x ∥ p &le
r to the regular octahedron B 1 ( r &prime
) , for arbitrary p >
0 . Then we calculate the inverse U p &minus
1 and we also
R 3 , ∥ x ∥ p &le
r to the regular octahedron B 1 ( r &prime
) , for arbitrary p >
0 . Then we calculate the inverse U p &minus
1 and we also
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08d7a1bc373423970d154f2c9b390525
Autor:
Adrian Holhoş, Daniela Roşca
Publikováno v:
Advances in Computational Mathematics. 43:677-697
For a class of polyhedrons denoted $\mathbb K_n(r,\varepsilon)$, we construct a bijective continuous area preserving map from $\mathbb K_n(r,\varepsilon)$ to the sphere $\mathbb S^{2}(r)$, together with its inverse. Then we investigate for which poly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06eb504b3554c9568fbe2171828abdaf
https://doi.org/10.1007/s10444-016-9502-z
https://doi.org/10.1007/s10444-016-9502-z
Autor:
Adrian Holhoş, Daniela Roşca
Publikováno v:
Computers & Mathematics with Applications. 67:1092-1107
We construct a new area preserving map from the unit sphere to the regular octahedron, both centered at the origin. Its inverse map allows the construction of uniform and refinable grids on a sphere, starting from any triangular uniform and refinable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a4656991b64a3adbb68ea4682bd263b
https://doi.org/10.1016/j.camwa.2014.01.003
https://doi.org/10.1016/j.camwa.2014.01.003
Autor:
Adrian, Roşca1 adrosca2003@yahoo.com, Daniela, Roşca2
Publikováno v:
Progress of Cryogenics & Isotopes Separation. 2013, Vol. 16 Issue 2, p71-80. 10p. 1 Black and White Photograph, 3 Charts, 4 Graphs.