نتایج جستجو برای: linear preserver

تعداد نتایج: 482310  

Journal: :bulletin of the iranian mathematical society 2015
m. aghajani k. nourouzi d. óregan

in this paper, we investigate the continuity of linear and sublinear correspondences defined on cones in normed spaces. we also generalize some known results for sublinear correspondences.

Journal: :Journal of Computational and Applied Mathematics 2014

Ahmad Johari Mahdi Barati Karizno Mohsen Zeraatkar Mojtaba Dolatabadi Omid Maghsoudi, Reza Ranjbar,

Background and Objective:Outbreak of food-borne diseases has become more and more important these days and using natural food preservers with high durability is under debate. Vegetative essence is a type of food preserver and many studies have been performed on their antimicrobial effects. The purpose of this study was to investigate antibacterial effects of lavender essence on...

Journal: :J. Complexity 1991
Eric Kostlan

We show that the number of arithmetic operations required to calculate a dominant -eigenvector of a real symmetric or complex Hermitian n × n matrix, when averaged over any density invariant under linear transformations that preserve the Frobenius norm, is bounded above by a polynomial in the size of the matrix. In fact, a specific upper bound is given in terms of n and . We also describe an es...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده علوم 1387

چکیده ندارد.

Journal: :international journal of group theory 2014
olga dashkova

the author studies the $bf r$$g$-module $a$ such that $bf r$ is an associative ring‎, ‎a group $g$ has infinite section $p$-rank (or infinite 0-rank)‎, ‎$c_{g}(a)=1$‎, ‎and for every‎ ‎proper subgroup $h$ of infinite section $p$-rank (or infinite 0-rank respectively) the quotient module $a/c_{a}(h)$ is‎ ‎a finite $bf r$-module‎. ‎it is proved that if the group $g$ under‎ ‎consideration is local...

Journal: :civil engineering infrastructures journal 0
seyed mehdi zahrai associate professor, center of excellence for engineering and management of civil infrastructures, school of civil engineering, college of engineering, university of tehran, p.o.box: 11155-4563, tehran, iran. alireza ezoddin ph.d. student, faculty of civil engineering, university of semnan, semnan, iran.

progressive collapse is a chain reaction of failures propagating throughout a portion of the structure disproportionate to the original local failure occurring when a sudden loss of a critical load‐bearing element initiates a structural element failure, eventually resulting in partial or full collapse of the structure. both general services administration (gsa) and united states department of d...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - پژوهشکده ریاضی ماهان 1392

مسائل بهینه سازی شامل معیارهای گوناگون و مغایر، شاخه ای از پژوهش را از دیرباز به خود اختصاص داده اند. برنامه ریزی خطی چندهدفی همواره به عنوان موضوعی درخور توجه در این حوزه مطرح بوده است. به دلیل رویارویی فراوان با چنین مسائلی، محققین بسیاری به بررسی و حل این گونه مسائل پرداخته اند. از طرفی، در اکثر مسائل برنامه ریزی خطی چندهدفی، ضرایب به طور قطعی مشخص نیستند. در این رساله، مسائل برنامه ریزی خطی...

Journal: :iranian journal of public health 0
mr. nikbakhtzadeh s. tirgari

the present study was performed during spring, summer and fall of 1997 in the central and western parts of fars province, iran, led to identification of paederus ilsae bernhauer and paederus iliensis coiffait (col: staphylinidae). this is the first original report of the latter species from iran. the adults have 5 months activity in average, begin lately in april and then continue until early s...

Journal: :journal of agricultural science and technology 2015
s. a. mohaddes s. m. fahimifard

in this study, application of adaptive neuro-fuzzy inference system (anfis) in forecasting three perspectives (1, 2, and 4 years) ahead of iran’s agricultural products export was compared with arima as the most common econometrics linear forecasting method. for this purpose, iran’s agricultural products export revenues related to 1959-2010, and forecast performance measures such as r2, mad, and...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید