Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Rajna Rajić"'
Publikováno v:
Rudarsko-geološko-naftni Zbornik, Vol 29, Iss 1, Pp 1-8 (2014)
The volume of geological structures is often calculated by using the definite integral. Though in some cases the integral can be solved analytically, in practice we usually approximate its value by numerical integration techniques. The application of
Externí odkaz:
https://doaj.org/article/4d2e5a5978d34ff39766b5ce7bf5dbf7
Publikováno v:
Geosciences, Vol 9, Iss 5, p 201 (2019)
The interpolation of small datasets is challenging problem regarding the selection of interpolation methods and type of datasets. Here, for such analysis, the analysed data was taken in two hydrocarbon fields (“A” and “B”), located in the wes
Externí odkaz:
https://doaj.org/article/b7f2f5cf63a4420ab9f75cc27f80c90a
Publikováno v:
Geosciences, Vol 9, Iss 1, p 36 (2019)
The semivariogram and the ordinary kriging analyses of porosity data from the Sava Depression (Northern Croatia), are presented relative to the Croatian part of the Pannonian Basin system. The data are taken from hydrocarbon reservoirs of the Lower P
Externí odkaz:
https://doaj.org/article/e694ccc114774d99a3cbb50e6ab6aedc
Publikováno v:
Linear Algebra and its Applications. 624:27-43
Autor:
Ljilj na Arambašić, Rajna Rajić
Publikováno v:
Mathematical Inequalities & Applications. :1421-1426
We discuss a certain relation related to the Roberts orthogonality in Hilbert C*-modules which turns out to be equivalent to the orthogonality with respect to the C*-valued inner product. We also describe Hilbert C*-modules in which the Birkhoff-Jame
Graph defined by Birkhoff–James orthogonality relation in normed spaces is studied. It is shown that (i) in a normed space of sufficiently large dimension there always exists a nonzero vector which is mutually Birkhoff–James orthogonal to each am
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5d021f1e244efd44171ea6b4acdde42
https://www.bib.irb.hr/1131839
https://www.bib.irb.hr/1131839
Autor:
Matea Perković, Rajna Rajić
Publikováno v:
Math.e
Volume 37
Issue 1
Volume 37
Issue 1
U ovom radu dajemo nekoliko karakterizacija [2times 2] kompleksnih matrica traga nula, koje se temelje na Hamilton– Cayleyjevom teoremu.
We study the relation of mutual strong Birkhoff–James orthogonality in two classical $$C^*$$ -algebras: the $$C^*$$ -algebra $${\mathbb {B}}(H)$$ of all bounded linear operators on a complex Hilbert space H and the commutative, possibly nonunital,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b24e9c3d4e9e419fa770fcfa6c1a010
https://doi.org/10.1007/s43037-020-00074-x
https://doi.org/10.1007/s43037-020-00074-x
Autor:
Ivana Pleše, Rajna Rajić
Publikováno v:
Poučak : časopis za metodiku i nastavu matematike
Volume 21
Issue 81
Volume 21
Issue 81
Pomoću matrica reda 2 mogu se opisati razne geometrijske transformacije ravnine, među kojima važno mjesto pripada rotaciji oko točke za dani kut. U ovom članku na nekoliko ćemo primjera ilustrirati primjene matrica reda 2 u rješavanju problema
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::4518ae173e960a76edcd309b793cf104
https://urn.nsk.hr/urn:nbn:hr:169:099323
https://urn.nsk.hr/urn:nbn:hr:169:099323
Autor:
Ljiljana Arambašić, Rajna Rajić
Publikováno v:
Acta Mathematica Hungarica. 157:220-228
We give a complete description of matrices A and B from $${\mathbb{M}_{2}(\mathbb{C})}$$ which are Roberts orthogonal to each other. Necessary and sufficient conditions for Roberts orthogonality of A and B are also given in terms of traces of matrice