林霞 趙侯宇
【摘 要】主要討論了一類函數(shù)方程解的情況,利用對合自同構(gòu)在群上的性質(zhì),證明了該方程的解是一個加法函數(shù)。
【關(guān)鍵詞】函數(shù)方程;對合自同構(gòu);加法函數(shù)
中圖分類號:O171 文獻標(biāo)識碼: A 文章編號: 2095-2457(2018)23-0209-002
DOI:10.19694/j.cnki.issn2095-2457.2018.23.093
【Abstract】We study the solutions of functional equation.By the properties of involutive automorphism on group,we prove the solutions can be expressed in additive function.
【Key words】Functional equation;Involutive automorphism;Additive function
最近,對帶有對合的函數(shù)方程的研究成為函數(shù)方程領(lǐng)域一個熱點,目前關(guān)于此方面的研究已取得了一系列成果[1-7]。1994 年,Simon 和Volkmann[8]考慮了
注由上述定理易知函數(shù)方程(2)的解f在群G上滿足f(xn)=nf(x). 因此引理1的結(jié)論(iv)是n=2的情況。
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