نتایج جستجو برای: iran delta
تعداد نتایج: 156372 فیلتر نتایج به سال:
A ring $R$ with an automorphism $sigma$ and a $sigma$-derivation $delta$ is called $delta$-quasi-Baer (resp., $sigma$-invariant quasi-Baer) if the right annihilator of every $delta$-ideal (resp., $sigma$-invariant ideal) of $R$ is generated by an idempotent, as a right ideal. In this paper, we study Baer and quasi-Baer properties of skew PBW extensions. More exactly, let $A=sigma(R)leftlangle x...
In this paper, the new notions of ``belongingness ($in_{gamma}$)"and ``quasi-coincidence ($q_delta$)" of a fuzzy point with a fuzzyset are introduced. By means of this new idea, the concept of$(alpha,beta)$-fuzzy $n$-ary subhypergroup of an $n$-aryhypergroup is given, where $alpha,betain{in_{gamma}, q_{delta},in_{gamma}wedge q_{delta}, ivq}$, andit is shown that, in 16 kinds of $(alpha,beta...
از میان شاخه های مختلف جبر یکی از تأثیر گذار ترین شاخه ها، نظریه حلقه و مدول می باشد و در این نظریه اهمیت مدول های تزریقی و تصویری بر کسی پوشیده نیست. مدول های تزریقی و تصویری در شاخه های دیگر جبر نظیر جبر جابجایی، جبر همولوژی و ... کاربرد های زیادی دارند. مدولهای توسعه یافته تعمیمی از مدولهای تزریقی است و دوگان آن مدولهای بالابرنده تعمیمی از مدولهای مکمل پذیر تصویری است. در سالهای اخی...
ابتدا تعاریف و مفاهیمی را که در این رساله مورد استفاده قرار می گیرد را بیان می کنیم. سپس به معرفی فضاهایی می پردازیم که با آن ها سر و کار خواهیم داشت. و در پایان به معرفی چند قضیه و اصل می پردازیم. رده ای از دستگاه های بیضوی شبه خطی تباهیده egin{equation*} left{egin{array}{ll} -div (h_1 (x)| abla u|^{p-2} abla u )=lambda a(x)|u|^{p-2}u +lambda b(x)|u|^{alpha-1}|v|^{eta+1}u+f...
1. Dept. of Nephrology, Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran 2. Dept. of Clinical Pharmacy, School of Pharmacy-International Campus, FCRDC, Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran 3. Dept. of Nephrology, Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran 4. Dept. of Radiology, Shahid Beheshti University of Medical...
In this paper, we study translation invariant surfaces in the 3-dimensional Heisenberg group $rm Nil_3$. In particular, we completely classify translation invariant surfaces in $rm Nil_3$ whose position vector $x$ satisfies the equation $Delta x = Ax$, where $Delta$ is the Laplacian operator of the surface and $A$ is a $3 times 3$-real matrix.
cultural iran is a scope that is more extended than the political territories of iran as a political unit. this concept means that cultural geography(mehdi moghanlo-1383-1) of iran is greater than its political geography which, according to history, has a long history extending west-east from kandahar to the euphrates and north-south from the persian gulf to the caucasus including transoxiana a...
1. Dept. of Nutrition, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran 2. Oncopathology Research Center, Dept. of Hematology-Oncology, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran 3. Dept. of Hematology-Oncology, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran 4. Dept. of Community Medicine, School of Medicine, ...
1 Full Professor, Department of Industrial Engineering, Iran University of Science and Technology, Tehran, Iran. E-mail: xxxxxxxxxxxxxx 2 Ph.D. Candidate, Department of Industrial Engineering, Iran University of Science and Technology, Tehran, Iran; and is the corresponding author. E-mail: [email protected] 3 Assistant Professor, Department of Industrial Engineering, Iran University of Scienc...
water use efficiency (wue, the ratio of total dry matter to water use) became a breeding target only when it was found that carbon stable isotopes were inversely related to wue. the current study conducted under well-watered and drought conditions in the field over two years at broom’s barn research station, uk, was undertaken to investigate the extent of genotypic differences for water use, yi...
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