Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Ramazan Türkmen"'
Autor:
Ramazan Türkmen, Hasan Gökbaş
Publikováno v:
Journal of Inequalities and Applications, Vol 2016, Iss 1, Pp 1-7 (2016)
Abstract Let us define A = C r ( a 0 , a 1 , … , a n − 1 ) $A=C_{r}(a_{0},a_{1},\ldots,a_{n-1})$ to be a n × n $n \times n$ r-circulant matrix. The entries in the first row of A = C r ( a 0 , a 1 , … , a n − 1 ) $A=C_{r}(a_{0},a_{1},\ldots,a
Externí odkaz:
https://doaj.org/article/9e46f0d900e840dca0fe479de69d4ff1
Autor:
Zübeyde Ulukök, Ramazan Türkmen
Publikováno v:
Journal of Applied Mathematics, Vol 2013 (2013)
We propose diverse upper bounds for the solution matrix of the continuous algebraic Riccati matrix equation (CARE) by building the equivalent form of the CARE and using some matrix inequalities and linear algebraic techniques. Finally, numerical exam
Externí odkaz:
https://doaj.org/article/2c843eaa2f1d4e7fadd954c490122f83
Autor:
Ramazan Türkmen, Zübeyde Ulukök
Publikováno v:
Journal of Inequalities and Applications, Vol 2010 (2010)
We first present an inequality for the Frobenius norm of the Hadamard product of two any square matrices and positive semidefinite matrices. Then, we obtain a trace inequality for products of two positive semidefinite block matrices by using 2×2 blo
Externí odkaz:
https://doaj.org/article/5c7df85ecee744b98235a8624afc98c7
Autor:
Ramazan Türkmen, Zübeyde Ulukök
Publikováno v:
Journal of Inequalities and Applications, Vol 2010 (2010)
We present some lower bounds for the Frobenius condition number of a positive definite matrix depending on trace, determinant, and Frobenius norm of a positive definite matrix and compare these results with other results. Also, we give a relation for
Externí odkaz:
https://doaj.org/article/fb039fd80edc4240b4223e36a73fd139
Autor:
Ramazan Türkmen, Zübeyde Ulukök
Publikováno v:
Applied Mathematics & Information Sciences. 10:1475-1482
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a32eaafee5722124dd5a54a9323af3b
https://doi.org/10.18576/amis/100426
https://doi.org/10.18576/amis/100426
Autor:
Zübeyde Ulukök, Ramazan Türkmen
Publikováno v:
Journal of the Franklin Institute. 350:3417-3431
In this paper, new upper bounds for the solution matrix of the continuous algebraic Riccati matrix equation (CARE) are derived by means of some matrix inequalities and linear algebraic techniques. Furthermore, for the derived each bound, iterative al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb2d6f886200a00fbc3920d583657078
https://doi.org/10.1016/j.jfranklin.2013.06.018
https://doi.org/10.1016/j.jfranklin.2013.06.018
Publikováno v:
Special Matrices, Vol 4, Iss 1 (2016)
WOS: 000413783100025
In this paper we firstly give majorization relations between the vectors F-n = {f(0), f(1),..., f(n-1)}, L-n = {l(0), l(1),..., l(n-1)} and P-n = {p(0), p(1),..., p(n-1) g which constructed with fibonacci, lucas and pell num
In this paper we firstly give majorization relations between the vectors F-n = {f(0), f(1),..., f(n-1)}, L-n = {l(0), l(1),..., l(n-1)} and P-n = {p(0), p(1),..., p(n-1) g which constructed with fibonacci, lucas and pell num
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83ce5e7e538501e0116381b00ddc9d52
http://www.degruyter.com/view/j/spma.2016.4.issue-1/spma-2016-0026/spma-2016-0026.xml?format=INT
http://www.degruyter.com/view/j/spma.2016.4.issue-1/spma-2016-0026/spma-2016-0026.xml?format=INT
Autor:
Hasan Gökbaş, Ramazan Türkmen
Publikováno v:
Journal of Inequalities and Applications, Vol 2016, Iss 1, Pp 1-7 (2016)
WOS: 000391732400001
Let us define A = C-r (a(0), a(1),..., a(n-1)) to be a nxn r-circulant matrix. The entries in the first row of A = C-r (a(0), a(1),..., a(n-1)) are a(i) = P-i, a(i) = Q(i), a(i) = P-i(2) or a(i) = Q(i)(2) (i = 0, 1, 2,..., n
Let us define A = C-r (a(0), a(1),..., a(n-1)) to be a nxn r-circulant matrix. The entries in the first row of A = C-r (a(0), a(1),..., a(n-1)) are a(i) = P-i, a(i) = Q(i), a(i) = P-i(2) or a(i) = Q(i)(2) (i = 0, 1, 2,..., n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d511c18fde9a779d899540f0557a627
https://doi.org/10.1186/s13660-016-0997-0
https://doi.org/10.1186/s13660-016-0997-0
Autor:
Ayşe Dilek Güngör, Ramazan Türkmen
Publikováno v:
Mathematical Inequalities & Applications. :23-31
In this study, we have obtained bounds for extreme singular values of a complex matrix A of order n × n . In addition, we have found a bounds for the extreme singular values of Hilbert matrix, its Hadamard square root, Cauchy-Toeplitz matrix, Cauchy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a51eb116212f8f07ff0394c99e0d724
https://doi.org/10.7153/mia-09-03
https://doi.org/10.7153/mia-09-03
Autor:
Ramazan Türkmen, Durmuş Bozkurt
Publikováno v:
Mathematical Inequalities & Applications. :211-217
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15407e70c5ea94934f5541f1eed38c15
https://doi.org/10.7153/mia-09-21
https://doi.org/10.7153/mia-09-21