منابع مشابه
Rim Hook
We consider the partial order on partitions of integers deened by removal of rim hooks of a given length. The isomorphism between this poset and a product of Young's lattices leads to rim hook versions of Schensted correspondences. Analogous results are given for shifted shapes. A shape, or Young diagram, is a nite order ideal of the lattice P 2 = f(k; l) : k; l 1g. Each shape = f(i; j) : 1 j i...
متن کاملThe Plethysm sλ[sμ] at Hook and Near-Hook Shapes
We completely characterize the appearance of Schur functions corresponding to partitions of the form ν = (1a, b) (hook shapes) in the Schur function expansion of the plethysm of two Schur functions, sλ[sμ] = ∑ ν aλ,μ,νsν . Specifically, we show that no Schur functions corresponding to hook shapes occur unless λ and μ are both hook shapes and give a new proof of a result of Carbonara, Remmel and...
متن کاملبررسی تغییرات فصلی اسانس Eucalyptus maculata Hook.
توانایی اکالیپتوسها در رشد سریع سبب شده تا این جنس در جنگلکاری، مصارف صنعتی و دارویی اهمیت فوقالعادهای پیدا کند. گونه درختی Eucalyptus maculata Hook. از نظر تولید برخی ترکیبهای شیمیایی و مصارف دارویی نسبت به سایر اکالیپتوسها از اهمیت خاصی برخوردار است. در این پژوهش برای بررسی تغییرات کمّی اسانس و نوع ترکیبهای تشکیلدهنده برگ درخت E. maculata، از منطقه گرمسیری دزفول (ایستگاه تحقیقاتی صفیآب...
متن کاملIntegrality of hook ratios
We study integral ratios of hook products of quotient partitions. This question is motivated by an analogous question in number theory concerning integral factorial ratios. We prove an analogue of a theorem of Landau that already applied in the factorial case. Under the additional condition that the ratio has one more factor on the denominator than the numerator, we provide a complete classific...
متن کاملRim Hook Lattices
A partial order is defined on partitions by the removal of rim hooks of a given length. This poset is isomorphic to a product of Young lattices, guaranteeing rim hook versions of Schensted correspondences. Analogous results are given for shifted shapes. 1. Main Results A shape (Young diagram) is a finite order ideal of the lattice P = {(k, l) : k, l ≥ 1}. Shapes form the so-called Young lattice...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: British Dental Journal
سال: 2012
ISSN: 0007-0610,1476-5373
DOI: 10.1038/sj.bdj.2012.472