نتایج جستجو برای: linear preserver
تعداد نتایج: 482310 فیلتر نتایج به سال:
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.
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...
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...
چکیده ندارد.
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...
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...
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...
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...
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...
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