[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/all2jp\/wiki11\/archives\/16979#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/all2jp\/wiki11\/archives\/16979","headline":"Ershov-Zahl  &#8211; \u30a6\u30a3\u30ad\u30da\u30c7\u30a3\u30a2","name":"Ershov-Zahl  &#8211; \u30a6\u30a3\u30ad\u30da\u30c7\u30a3\u30a2","description":"before-content-x4 \u3053\u306e\u8a18\u4e8b\u307e\u305f\u306f\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u4fee\u6b63\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 \u305d\u308c\u3092\u6539\u5584\u3057\u3066\u304b\u3089\u3001\u3053\u306e\u30de\u30fc\u30ad\u30f3\u30b0\u3092\u524a\u9664\u3059\u308b\u306e\u3092\u624b\u4f1d\u3063\u3066\u304f\u3060\u3055\u3044\u3002 \u30a8\u30eb\u30b7\u30e7\u30d5\u30fb\u30b6\u30ec\u30f3 \u30ec\u30b8\u30b9\u30bf\u3092\u5272\u308a\u5f53\u3066\u308b\u3068\u304d\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u30b5\u30a4\u30a8\u30f3\u30b9\u306e\u5206\u91ce\u3067\u5fc5\u8981\u3067\u3059\u3002\u5f7c\u3089\u306f\u3001\u767b\u9332\u767b\u9332\u624b\u9806\u306e\u30a2\u30a4\u30c7\u30a2\u3092\u767a\u8868\u3057\u305f\u30ed\u30b7\u30a2\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u79d1\u5b66\u8005\u306e\u30a2\u30f3\u30c9\u30ec\u30a4\u30fb\u30da\u30c8\u30ed\u30a6\u30a3\u30c3\u30b7\u30e5\u30fb\u30b8\u30e3\u30eb\u30b7\u30e7\u30fc\u306b\u3061\u306a\u3093\u3067\u540d\u4ed8\u3051\u3089\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u624b\u9806\u306f\u3001\u6c34\u6587\u5b66\u8005\u306e\u30ed\u30d0\u30fc\u30c8\u30fb\u30a8\u30eb\u30de\u30fc\u30fb\u30db\u30fc\u30c8\u30f3\u3068\u30a2\u30fc\u30b5\u30fc\u30fb\u30cb\u30e5\u30fc\u30a6\u30a7\u30eb\u306e\u30b9\u30dd\u30c3\u30c8\u30e9\u30a4\u30c8\u306b\u3055\u304b\u306e\u307c\u308a\u3001\u5ddd\u306e\u7a7a\u9593\u306e\u5ddd\u306e\u6570\u3092\u8a08\u7b97\u3059\u308b\u624b\u9806\u3092\u958b\u767a\u3057\u307e\u3057\u305f\u3002 Jerschow\u306b\u3088\u308b\u3068\u3001\u3053\u306e\u624b\u9806\u306f\u3001\u5370\u5237\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30ec\u30b8\u30b9\u30bf\u306e\u6570\u3092\u6c7a\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059 a {displaystyle a} after-content-x4 \u8a55\u4fa1\u3057\u3001\u3057\u305f\u304c\u3063\u3066\u3001\u3067\u304d\u308b\u3060\u3051\u5c11\u306a\u3044\u30ec\u30b8\u30b9\u30bf\u3067\u5927\u304d\u306a\u5f0f\u306e\u8a55\u4fa1\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002 \u30d0\u30a4\u30ca\u30ea\u30c4\u30ea\u30fc\u306eershov\u6570\u306f\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002 after-content-x4 \u5404\u30b7\u30fc\u30c8\u306b\u306f\u5024\u304c\u3042\u308a\u307e\u3059 \u305d\u3046\u3067\u3059 r s h o \u306e","datePublished":"2019-11-14","dateModified":"2019-11-14","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/all2jp\/wiki11\/archives\/author\/lordneo#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/all2jp\/wiki11\/archives\/author\/lordneo","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/44a4cee54c4c053e967fe3e7d054edd4?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/44a4cee54c4c053e967fe3e7d054edd4?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/9\/92\/Qsicon_Ueberarbeiten.svg\/24px-Qsicon_Ueberarbeiten.svg.png","url":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/9\/92\/Qsicon_Ueberarbeiten.svg\/24px-Qsicon_Ueberarbeiten.svg.png","height":"24","width":"24"},"url":"https:\/\/wiki.edu.vn\/all2jp\/wiki11\/archives\/16979","wordCount":8493,"articleBody":"     (adsbygoogle = window.adsbygoogle || []).push({});before-content-x4 \u3053\u306e\u8a18\u4e8b\u307e\u305f\u306f\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u4fee\u6b63\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002  \u305d\u308c\u3092\u6539\u5584\u3057\u3066\u304b\u3089\u3001\u3053\u306e\u30de\u30fc\u30ad\u30f3\u30b0\u3092\u524a\u9664\u3059\u308b\u306e\u3092\u624b\u4f1d\u3063\u3066\u304f\u3060\u3055\u3044\u3002 \u30a8\u30eb\u30b7\u30e7\u30d5\u30fb\u30b6\u30ec\u30f3 \u30ec\u30b8\u30b9\u30bf\u3092\u5272\u308a\u5f53\u3066\u308b\u3068\u304d\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u30b5\u30a4\u30a8\u30f3\u30b9\u306e\u5206\u91ce\u3067\u5fc5\u8981\u3067\u3059\u3002\u5f7c\u3089\u306f\u3001\u767b\u9332\u767b\u9332\u624b\u9806\u306e\u30a2\u30a4\u30c7\u30a2\u3092\u767a\u8868\u3057\u305f\u30ed\u30b7\u30a2\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u79d1\u5b66\u8005\u306e\u30a2\u30f3\u30c9\u30ec\u30a4\u30fb\u30da\u30c8\u30ed\u30a6\u30a3\u30c3\u30b7\u30e5\u30fb\u30b8\u30e3\u30eb\u30b7\u30e7\u30fc\u306b\u3061\u306a\u3093\u3067\u540d\u4ed8\u3051\u3089\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u624b\u9806\u306f\u3001\u6c34\u6587\u5b66\u8005\u306e\u30ed\u30d0\u30fc\u30c8\u30fb\u30a8\u30eb\u30de\u30fc\u30fb\u30db\u30fc\u30c8\u30f3\u3068\u30a2\u30fc\u30b5\u30fc\u30fb\u30cb\u30e5\u30fc\u30a6\u30a7\u30eb\u306e\u30b9\u30dd\u30c3\u30c8\u30e9\u30a4\u30c8\u306b\u3055\u304b\u306e\u307c\u308a\u3001\u5ddd\u306e\u7a7a\u9593\u306e\u5ddd\u306e\u6570\u3092\u8a08\u7b97\u3059\u308b\u624b\u9806\u3092\u958b\u767a\u3057\u307e\u3057\u305f\u3002 Jerschow\u306b\u3088\u308b\u3068\u3001\u3053\u306e\u624b\u9806\u306f\u3001\u5370\u5237\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30ec\u30b8\u30b9\u30bf\u306e\u6570\u3092\u6c7a\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059 a {displaystyle a}        (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4\u8a55\u4fa1\u3057\u3001\u3057\u305f\u304c\u3063\u3066\u3001\u3067\u304d\u308b\u3060\u3051\u5c11\u306a\u3044\u30ec\u30b8\u30b9\u30bf\u3067\u5927\u304d\u306a\u5f0f\u306e\u8a55\u4fa1\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002 \u30d0\u30a4\u30ca\u30ea\u30c4\u30ea\u30fc\u306eershov\u6570\u306f\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002        (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4\u5404\u30b7\u30fc\u30c8\u306b\u306f\u5024\u304c\u3042\u308a\u307e\u3059 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a \uff09\uff09 = \u521d\u3081 {displaystyle ershov\uff08a\uff09= 1} \uff08\u5b9a\u6570\u307e\u305f\u306f\u5909\u6570\uff09\u3002 1\u3064\u306e\u4e0b\u4f4d\u30ce\u30fc\u30c9\u306e\u307f\u306e\u3059\u3079\u3066\u306e\u7d50\u3073\u76ee\u306f\u3001\u4e0b\u4f4d\u30ce\u30fc\u30c9\uff08Unare Operators\uff09\u3068\u540c\u3058\u5024\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002 \u4ed6\u306e\u7d50\u3073\u76ee\u306b\u9069\u7528\u3055\u308c\u307e\u3059 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 1\u2218 a 2\uff09\uff09 = {max(ershov(a1),ershov(a2))ershov(a1)\u2260ershov(a2)ershov(a1)+1ershov(a1)=ershov(a2){displaystyle ershov\uff08a_ {1} circ a_ {2}\uff09= {begin {cases} max\uff08ershov\uff08a_ {1}\uff09\u3001ershov\uff08a_ {1}\uff09neq ershov\uff08a_ {2}\uff09\\ {1 1}\uff09= ershov\uff08a_ {2}\uff09end {case}}} \u30d7\u30ed\u30bb\u30b9\u306f\u3001\u30d5\u30a9\u30fc\u30e0\u306e\u95a2\u6570\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002 \u305d\u3046\u3067\u3059 r s h o \u306e \uff1a a \u306e s d r \u306e c k \u2192 n {displaystyle ershov\uff1aendruckrightarrow mathbb {n}} \u4e0e\u3048\u3089\u308c\u305f\u7b97\u8853\u5f0f a {displaystyle a} \u8a55\u4fa1\u306b\u5fc5\u8981\u306a\u30ec\u30b8\u30b9\u30bf\u306e\u6570\u304c\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u75c7\u4f8b\u306e\u9055\u3044\u304c\u5fc5\u8981\u3067\u3059\u3002        (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4Table of Contents\u5909\u6570\u3068\u5b9a\u6570 [ \u7de8\u96c6 | \u30bd\u30fc\u30b9\u30c6\u30ad\u30b9\u30c8\u3092\u7de8\u96c6\u3057\u307e\u3059 ] \u975e\u8b66\u6212\u30ea\u30f3\u30af [ \u7de8\u96c6 | \u30bd\u30fc\u30b9\u30c6\u30ad\u30b9\u30c8\u3092\u7de8\u96c6\u3057\u307e\u3059 ] \u30d0\u30a4\u30ca\u30ea\u30ea\u30f3\u30af [ \u7de8\u96c6 | \u30bd\u30fc\u30b9\u30c6\u30ad\u30b9\u30c8\u3092\u7de8\u96c6\u3057\u307e\u3059 ] fall I\uff1aershov\uff08a \u521d\u3081 \uff09\u79cbII\uff1aershov\uff08a \u521d\u3081 \uff09= ershov\uff08a 2 \uff09\uff09 [ \u7de8\u96c6 | \u30bd\u30fc\u30b9\u30c6\u30ad\u30b9\u30c8\u3092\u7de8\u96c6\u3057\u307e\u3059 ] \u30a8\u30eb\u30b7\u30e7\u30d5\u6570\u306e\u8a08\u7b97 [ \u7de8\u96c6 | \u30bd\u30fc\u30b9\u30c6\u30ad\u30b9\u30c8\u3092\u7de8\u96c6\u3057\u307e\u3059 ] \u30b3\u30fc\u30c9\u306e\u4f5c\u6210 [ \u7de8\u96c6 | \u30bd\u30fc\u30b9\u30c6\u30ad\u30b9\u30c8\u3092\u7de8\u96c6\u3057\u307e\u3059 ] \u5909\u6570\u3068\u5b9a\u6570 [ \u7de8\u96c6 | \u30bd\u30fc\u30b9\u30c6\u30ad\u30b9\u30c8\u3092\u7de8\u96c6\u3057\u307e\u3059 ] \u5909\u6570\u307e\u305f\u306f\u5b9a\u6570\u3092\u8a55\u4fa1\u3059\u308b\u306b\u306f\u3001\u6b63\u78ba\u306b1\u3064\u306e\u30ec\u30b8\u30b9\u30bf\u304c\u5fc5\u8981\u3067\u3059\u3002\u306b\u3088\u308b\u3068\uff1a \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 \u306e \uff09\uff09 = \u521d\u3081 {displaystyle ershov\uff08v\uff09= 1} \u975e\u8b66\u6212\u30ea\u30f3\u30af [ \u7de8\u96c6 | \u30bd\u30fc\u30b9\u30c6\u30ad\u30b9\u30c8\u3092\u7de8\u96c6\u3057\u307e\u3059 ] \u975e\u6b66\u88c5\u306e\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u3092\u8a55\u4fa1\u3057\u307e\u3059 a {displaystyle alpha} \u8868\u73fe\u306b\u3064\u3044\u3066 a {displaystyle a} \u30ec\u30b8\u30b9\u30bf\u306e\u6570\u306e\u307f\u304c\u5fc5\u8981\u306a\u5834\u5408\u3001\u305d\u308c\u306f a {displaystyle a} \u7d50\u679c\u306e\u767b\u9332\u304c\u5fc5\u8981\u3067\u3059 a {displaystyle a} \u5358\u7d14\u306b\u4e0a\u66f8\u304d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a  a \uff09\uff09 = \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a \uff09\uff09 {displaystyle ershov\uff08alpha\u301ca\uff09= ershov\uff08a\uff09}  \u30d0\u30a4\u30ca\u30ea\u30ea\u30f3\u30af [ \u7de8\u96c6 | \u30bd\u30fc\u30b9\u30c6\u30ad\u30b9\u30c8\u3092\u7de8\u96c6\u3057\u307e\u3059 ] \u30d5\u30a9\u30fc\u30e0\u306e2\u3064\u306e\u5f0f\u9593\u306e\u30d0\u30a4\u30ca\u30ea\u30ea\u30f3\u30af\u3092\u8a55\u4fa1\u3059\u308b\u3068\u304d a \u521d\u3081 \u2218 a 2 {displaystyle a_ {1} circ a_ {2}} \u307e\u3060\u969b\u7acb\u3064\u3088\u3046\u306a3\u3064\u306e\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002 fall I\uff1aershov\uff08a \u521d\u3081 \uff09a 2 \uff09\uff09 {displaystyle ershov\uff08a_ {1} circ a_ {2}\uff09} \u8a55\u4fa1\u3002\u7d50\u679c\u3068\u3057\u3066 a 2 {displaystyle a_ {2}} \u8ffd\u52a0\u306e\u767b\u9332\u7c3f\u306b\u3042\u308a\u307e\u3059\u304c\u3001\u4ed6\u306e\u3059\u3079\u3066\u306e\u30ec\u30b8\u30b9\u30bf\u306f\u306e\u8a55\u4fa1\u306e\u305f\u3081\u306b\u623b\u3063\u3066\u304d\u307e\u3057\u305f a \u521d\u3081 {displaystyle a_ {1}} \u3053\u306e1\u3064\u306e\u7d50\u679c\u306b\u52a0\u3048\u3066\u3001\u5229\u7528\u53ef\u80fd\u306a\u7406\u7531 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a \u521d\u3081 \uff09\uff09 {displaystyle ershov\uff08a_ {1}\uff09} \u3055\u3089\u306a\u308b\u30ec\u30b8\u30b9\u30bf\u304c\u5fc5\u8981\u3067\u3059\u3002\u305d\u3053\u306b\u306f \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a \u521d\u3081 \uff09\uff09 {displaystyle ershov\uff08a_ {1}\uff09} \u3088\u308a\u5c0f\u3055\u3044 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 2 \uff09\uff09 {displaystyle ershov\uff08a_ {2}\uff09} \u3059\u304e\u307e\u3059 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a \u521d\u3081 \uff09\uff09 + \u521d\u3081 {displaystyle ershov\uff08a_ {1}\uff09+1} \u5c0f\u3055\u3044\u307e\u305f\u306f\u7b49\u3057\u3044 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 2 \uff09\uff09 {displaystyle ershov\uff08a_ {2}\uff09} \u3053\u308c\u306f\u660e\u3089\u304b\u306b\u3088\u308a\u5c0f\u3055\u3044\u3067\u3059 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 2 \uff09\uff09 + \u521d\u3081 {displaystyle ershov\uff08a_ {2}\uff09+1} \u3002 \u306b\u3088\u308b\u3068\uff1a \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 1\uff09\uff09 < \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 2\uff09\uff09 \u21d2 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 1\u2218 a 2\uff09\uff09 = \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 2\uff09\uff09 {displaystyle ershov\uff08a_ {1}\uff09 \u79cbII\uff1aershov\uff08a \u521d\u3081 \uff09= ershov\uff08a 2 \uff09\uff09 [ \u7de8\u96c6 | \u30bd\u30fc\u30b9\u30c6\u30ad\u30b9\u30c8\u3092\u7de8\u96c6\u3057\u307e\u3059 ] \u3069\u3061\u3089\u306e\u5f0f\u3067\u3082\u540c\u3058\u6570\u306e\u30ec\u30b8\u30b9\u30bf\u304c\u5fc5\u8981\u306a\u305f\u3081\u3001\u3069\u306e\u5f0f\u304c\u6700\u521d\u306b\u8a55\u4fa1\u3055\u308c\u308b\u304b\u306f\u95a2\u4fc2\u3042\u308a\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u5f0f\u306f\u6700\u521d\u306b\u6a21\u7bc4\u7684\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059 a \u521d\u3081 {displaystyle a_ {1}} \u306e\u305f\u3081\u306b\u8a55\u4fa1\u3055\u308c\u307e\u3059 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a \u521d\u3081 \uff09\uff09 {displaystyle ershov\uff08a_ {1}\uff09} \u767b\u9332\u304c\u5fc5\u8981\u3067\u3059\u3002\u8a55\u4fa1\u5f8c\u3001\u7d50\u679c\u306f\u7d50\u679c\u306e\u767b\u9332\u306b\u306a\u308a\u3001 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a \u521d\u3081 \uff09\uff09  &#8211;  \u521d\u3081 {displaystyle ershov\uff08a_ {1}\uff09-1} \u4eca\u3059\u3050\u767b\u9332\u3057\u3066\u304f\u3060\u3055\u3044 a 2 {displaystyle a_ {2}} \u5229\u7528\u53ef\u80fd\u3002\u5f0f\u306e\u8a55\u4fa1\u4ee5\u6765 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a \u521d\u3081 \uff09\uff09 {displaystyle ershov\uff08a_ {1}\uff09} \u307e\u305f \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 2 \uff09\uff09 {displaystyle ershov\uff08a_ {2}\uff09} \u306e\u7d50\u679c\u306e\u7d50\u679c\u306e\u305f\u3081\u306e\u767b\u9332\u306b\u52a0\u3048\u3066\u3001\u767b\u9332\u30cb\u30fc\u30ba a \u521d\u3081 {displaystyle a_ {1}} \u3001 \u307e\u3060 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 2 \uff09\uff09 {displaystyle ershov\uff08a_ {2}\uff09} \u3055\u3089\u306a\u308b\u30ec\u30b8\u30b9\u30bf\u3001\u3064\u307e\u308a\u5168\u4f53\u7684\u306b \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 2 \uff09\uff09 + \u521d\u3081 {displaystyle ershov\uff08a_ {2}\uff09+1} \u306e\u8a55\u4fa1\u306b\u767b\u9332\u3057\u307e\u3059 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a \u521d\u3081 \u2218 a 2 \uff09\uff09 {displaystyle ershov\uff08a_ {1} circ a_ {2}\uff09} \u5fc5\u8981\u3067\u3059\u3002 \u306b\u3088\u308b\u3068\uff1a \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 1\uff09\uff09 = \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 2\uff09\uff09 \u21d2 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 1\u2218 a 2\uff09\uff09 = \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 1\uff09\uff09 + \u521d\u3081 {displaystyle ershov\uff08a_ {1}\uff09= ershov\uff08a_ {2}\uff09rightarrow ershov\uff08a_ {1} circ a_ {2}\uff09= ershov\uff08a_ {1}\uff09+1} ershov(a_{2})Rightarrow ershov(a_{1}circ a_{2})=ershov(a_{1})}&#8221;>\u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 1\uff09\uff09 > \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 2\uff09\uff09 \u21d2 \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 1\u2218 a 2\uff09\uff09 = \u305d\u3046\u3067\u3059 r s h o \u306e \uff08 a 1\uff09\uff09 {displaystyle ershov\uff08a_ {1}\uff09> ershov\uff08a_ {2}\uff09rightarrow ershov\uff08a_ {1} circ a_ {2}\uff09= ershov\uff08a_ {1}\uff09} "},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/all2jp\/wiki11\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/all2jp\/wiki11\/archives\/16979#breadcrumbitem","name":"Ershov-Zahl  &#8211; \u30a6\u30a3\u30ad\u30da\u30c7\u30a3\u30a2"}}]}]