6 research outputs found

    A study of some certain languages

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    令X*為有限字母集X 所生成的自由域(free monoid )。X*集合裡面的元素稱為字而 X*集合的子休稱為言語。令X =X* \{1} ,其中1是空字。 一個非空言語A X ,若A AX =Φ,則A 是一個前序碼(prefix code )。若有一個 言語L X 而且存在一個X L 使得{x ,y }是一個前序碼對於每個y L ,則L 稱為一 個左特異言語(left singular language)。若 L 是有限個類別(f-inite index) 則稱L 為正規的(regular )。P 是單一的(identity),則稱L 為分離的(disju- nc tive)。 本論文包含三個主題。第一部分,我們將左特異言語族分解成一些子半群的聯集。 第二部分,我們討論當一個言語A 為前序碼時,A 是正規的若且唯若P (A ),即所 有A 的字的字首,是正規的。另外,我們也討論E (A ),即所有A 的字的子字,的 性質。最後,我們討論當A 為前序碼時,A 是分離的若且唯若P (A ),是分離的。 第三部分,我們討論一種新的言語稱為半數碼(semicode)。我們發現半數碼實際上 放松數碼的定義。除此之外,我們也討論半數碼的代數性質

    First observation of yrast band in odd-odd Lu-162

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    High spin states of the odd-odd Lu-162 nucleus have been studied via High spin states of the odd-odd Lu-162 nucleus have been studied vi

    High-spin states in Lu-162 and signature inversion of yrast bands indoubly odd nuclei around the A=160 mass region

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    High-spin states of Lu-162 have been produced and studied via the High-spin states of Lu-162 have been produced and studied via th

    Signature inversion of yrast band in odd-odd Lu-162 nucleus

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    High spin states of the odd-odd Lu-162 nucleus have been studied via High spin states of the odd-odd Lu-162 nucleus have been studied vi

    Low lying states in Ho-153 and Tm-157 from electron capture and beta(+)decay of Er-153 and Yb-157

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    A detailed discussion and supplemental experimental information on the A detailed discussion and supplemental experimental information on th

    SEARCH FOR POSITIVE PARITY BANDS IN XE-117

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    Excited states of Xe-117 were populated via the reaction Si-28 + Mo-92 Excited states of Xe-117 were populated via the reaction Si-28 + Mo-9
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