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本文研究了亚纯函数与其复微差分多项式的唯一性.在有限级的限制下,文章建立了三个涉及亚纯函数$f$与其微差分多项式$L^{n}_{eta}f=sum_{k=0}^{n}a_{k}f(z+keta)+a_{-1}f''$ 唯一性定理,所获结果进一步刻画了$f(z)equiv L^{n}_{eta}f(z)$的特性,例子说明了结果的精确性. 相似文献
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Mohamed S. H. Salem Ahmed Sabri Md. Imrul Khalid Hiroaki Sasai Shinobu Takizawa 《Molecules (Basel, Switzerland)》2022,27(24)
A novel double aza-oxa[7]helicene was synthesized from the commercially available N1,N4-di(naphthalen-2-yl)benzene-1,4-diamine and p-benzoquinone in two steps. Combining the acid-mediated annulation with the electrochemical sequential reaction (oxidative coupling and dehydrative cyclization) afforded this double hetero[7]helicene. Moreover, the structural and optical features of this molecule have been studied using X-ray crystallographic analysis, and the absorption and emission behaviors were rationalized based on DFT calculations. 相似文献
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