en
jalali
1393
2
1
gregorian
2014
5
1
9
1
online
1
fulltext
en
The Wave Equation in Non-classic Cases: Non-self Adjoint with Non-local and Non-periodic Boundary Conditions
چکیده
In this paper has been studied the wave equation in some non-classic cases. In the rst case boundary conditions are non-local and non-periodic. At that case the associated spectral problem is a self-adjoint problem and consequently the eigenvalues are real. But the second case the associated spectral problem is non-self-adjoint and consequently the eigenvalues are complex numbers,in which two cases, the solutions of the problem are constructed by Fourier method. By compatibility conditions and asymptotic expansions of the Fourier coe cients, the convergence of series solutions are proved. At last series solution are established and the uniqueness of the solution is proved by a special way which has not been used in classic texts. .
Wave equation, Non-local &,,, non-periodic Boundary Conditions, Asymptotic expansion.
1
12
http://ijmsi.ir/browse.php?a_code=A-10-744-1&slc_lang=en&sid=1
Mohammad
Jahanshahi
jahanshahi@azaruniv.edu
`0031947532846002271`

0031947532846002271
Yes
Asghar
Ahmadkhanlu
s.a.ahmadkhanlu@azaruniv.edu
`0031947532846002272`

0031947532846002272
No
en
On Hyper Pseudo BCK-algebras
In this paper, we introduce the notion of hyper pseudo B C K - algebras, which is a generalization of pseudo BCK -algebras and hyper BCK -algebras and we investigates some related properties. In follow, we de ne some kinds of hyper pseudo BCK -ideals of a hyper pseudo BCK - algebra and we find the relations among them. Finally, we characterize the hyper pseudo BCK -ideals of type 4 generated by a nonempty subset.
Hyper pseudo BCK-algebras, Hyper pseudo BCK-ideals, Generated hyper pseudo BCK-ideals .
13
29
http://ijmsi.ir/browse.php?a_code=A-10-746-1&slc_lang=en&sid=1
R. A.
Borzooei
borzooei@sbu.ac.ir
`0031947532846002273`

0031947532846002273
Yes
A.
Rezazadeh
Rezazade2008@gmail.com
`0031947532846002274`

0031947532846002274
No
R.
Ameri
rez_ameri@yahoo.com
`0031947532846002275`

0031947532846002275
No
en
جوابهایی از نوع ماتریسهای قطری و تک جمله ای برای معادله ماتریسی AXB=C
Diagonal and Monomial Solutions of the Matrix Equation AXB=C
In this article, we consider the matrix equation $AXB=C$, where A, B, C are given matrices and give new necessary and sufficient conditions for the existence of the diagonal solutions and monomial solutions to this equation. We also present a general form of such solutions. Moreover, we consider the least squares problem $min_X |C-AXB |_F$ where $X$ is a diagonal or monomial matrix. The explicit expressions of the optimal solution and the minimum norm solution are both provided.
Matrix equation, Diagonal matrix, Monomial matrix, Least squares problem.
31
42
http://ijmsi.ir/browse.php?a_code=A-10-303-1&slc_lang=en&sid=1
Massoud
Aman
Author
مسعود
امان
mamann@birjand.ac.ir
`0031947532846002276`

0031947532846002276
Yes
نویسنده
en
On the Graphs Related to Green Relations of Finite Semigroups
In this paper we develop an analog of the notion of the con- jugacy graph of nite groups for the nite semigroups by considering the Green relations of a nite semigroup. More precisely, by de ning the new graphs $Gamma_{L}(S)$, $Gamma_{H}(S)$, $Gamma_{J}(S)$ and $Gamma_{D}(S)$ (we name them the Green graphs) related to the Green relations L R J H and D of a nite semigroup S , we first attempt to prove that the graphs $Gamma_{D}(S)$ and $Gamma_{H}(S)$ have exactly one connected component, and this graphs for regu- lar semigroups are complete. And secondly, we give a necessary condition for a nite semigroup to be regular. This study shows an intrinsic di er- ence between the conjugacy graphs (of groups) and the Green graphs (of semigroups) as well. Finally, our calculations include two kinds of semi- groups, mostly involving the well known Lucas numbers, and examining the proved assertions.
Conjugacy graph, Regular semigroup, Green relations.
43
51
http://ijmsi.ir/browse.php?a_code=A-10-745-1&slc_lang=en&sid=1
A.
Gharibkhajeh
a_gharib@iau-tnb.ac.ir
`0031947532846002277`

0031947532846002277
Yes
H.
Doostie
doostih@gmail.com
`0031947532846002278`

0031947532846002278
No
en
شبه گروه های چند گانه دوتایی دارای اتحادهای شبیه به اتحاد مدیال
Binary Multiquasigroups with Medial-Like Equations
In this paper paramedial, co-medial and co-paramedial binary multiquasigroups are considered and a characterization of the corresponding component operations of these multiquasigroups is given.
Medial, Paramedial, Co-medial, Co-paramedial, Multiquasigroup, Mode.
53
62
http://ijmsi.ir/browse.php?a_code=A-10-362-1&slc_lang=en&sid=1
Amir
Ehsani
Mahshahr Branch, Islamic Azad University
امیر
احسانی
a.ehsani@mahshahriau.ac.ir
`0031947532846002279`

0031947532846002279
Yes
دانشگاه اراد اسلامی واحد ماهشهر
Yuri
Movsisyan
Yerevan State University
yurimovsisyan@yahoo.com
`0031947532846002280`

0031947532846002280
No
en
فضاهای بروالدی متقارن تعمیم یافته
Generalized Symmetric Berwald Spaces
In this paper we study generalized symmetric Berwald spaces. We show that if a Berwald space $(M,F)$ admits a parallel $s-$structure then it is locally symmetric. For a complete Berwald space which admits a parallel s-structure we show that if the flag curvature of $(M,F)$ is everywhere nonzero, then $F$ is Riemannian.
Homogeneous Finsler space, Symmetric space, Generalized symmetric space, Berwald space.
63
69
http://ijmsi.ir/browse.php?a_code=A-10-368-1&slc_lang=en&sid=1
Parastoo
Habibi
Department of Mathematics
پرستو
حبیبی
p.habibi@iau-astara.ac.ir
`0031947532846002287`

0031947532846002287
Yes
گروه ریاضی
Asadollah
Razavi
Faculty of Mathematics and Computer Science
اسدالله
رضوی
arazavi@aut.ac.ir
`0031947532846002288`

0031947532846002288
No
دانشکده ریاضی و علوم کامپیوتر
en
نتایجی روی فضاهای نرمدار مخروطی
Some Results on TVS-cone Normed Spaces and Algebraic Cone Metric Spaces
In this paper we introduce the cone bounded linear mapping and demonstrate a proof to show that the cone norm is continuous. Among other things, we prove the open mapping theorem and the closed graph theorem in TVS-cone normed spaces. We also show that under some restrictions on the cone, two cone norms are equivalent if and only if the topologies induced by them are the same. In the sequel, we introduce the notion of algebraically cone metric and we will show that every algebraically cone metric space has a topology.
Cone bounded, Equivalent cone norms, Algebraically cone metric.
71
80
http://ijmsi.ir/browse.php?a_code=A-10-380-1&slc_lang=en&sid=1
Assadollah
Niknam
professor
`0031947532846002281`

0031947532846002281
No
Saeedeh
Shamsi Gamchi
Ph.D student
`0031947532846002282`

0031947532846002282
Yes
Mohammad
Janfada
associate professor
`0031947532846002283`

0031947532846002283
No
en
On Hyperideal Structure of Ternary Semihypergroups
چکیده
In this paper, we introduce and study the concepts of prime left, semiprime left and irreducible left hyperideals in ternary semihyper- groups and investigate some basic properties of them. We introduce the concepts of hyper lter and hypersemilattice congruence of ternary semi- hypergroups. We give some characterizations of hyper lters in ternary semihypergroups. Some relationships between hyper lters, prime hyper- ideals and hypersemilattice congruences in ternary semihypergroups are considered. We also introduce the notion of hyperideals extensions in ternary semihypergroups and some properties of them are investigated.
Semihypergroup, Ternary semihypergroup, Hyperideal, Prime left hyperideal, Semiprime left hyperideal, Irreducible left hyperideal, Hyper lter, Left m-system, Left i-system, Left p-system.
81
98
http://ijmsi.ir/browse.php?a_code=A-10-746-2&slc_lang=en&sid=1
Kostaq
Hila
kostaq_hila@yahoo.com
`0031947532846002284`

0031947532846002284
No
Bijan
Davvaz
davvaz@yazd.ac.ir
`0031947532846002285`

0031947532846002285
Yes
Krisanthi
Naka
khila@uogj.edu.al
`0031947532846002286`

0031947532846002286
No
en
ABSTRACTS IN PERSIAN - Vol. 9, No. 1
Please see the full text contains the Pesian abstracts for this volume.
99
107
http://ijmsi.ir/browse.php?a_code=A-10-583-12&slc_lang=en&sid=1
Name of Authors
in This Volume
`0031947532846002487`

0031947532846002487
Yes