Embeddings and Hyperplanes of Discrete Geometries
نویسندگان
چکیده
منابع مشابه
Geometric hyperplanes of the half-spin geometries arise from embeddings
Let the point-line geometry Γ = (P ,L) be a half-spin geometry of type Dn,n. Then, for every embedding of Γ in the projective space P(V ), where V is a vector space of dimension 2n−1, it is true that every hyperplane of Γ arises from that embedding. It follows that any embedding of this dimension is universal. There are no embeddings of higher dimension. A corollary of this result and the fact ...
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امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...
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ژورنال
عنوان ژورنال: European Journal of Combinatorics
سال: 1987
ISSN: 0195-6698
DOI: 10.1016/s0195-6698(87)80009-4