²é¿´: 719  |  »Ø¸´: 4
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

lipeng0327

ľ³æ (ÕýʽдÊÖ)

Ë®ÊÖ

[½»Á÷] ¡¾ÇóÖú¡¿Ò»¸ö²»µÈʽµÄÖ¤Ã÷ ÒÑÓÐ3È˲ÎÓë


¸üÕýÏÂÊÇÖ¤V>=0
ллÈýÂ¥µÄÌáÐÑ

[ Last edited by lipeng0327 on 2010-4-26 at 16:06 ]
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÔÚ¾øÍûÖÐѰÕÒÏ£Íû£¬ÈËÉúÖÕ½«»Ô»Í¡£
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

cool_smile

ľ³æ (ÖøÃûдÊÖ)

lipeng0327(½ð±Ò+1):¿´µÄºÜ×Ðϸ£¬ÎÒÒѸüÕýΪV>=0,Çë´Í½Ì 2010-04-26 16:07
Èç¹ûÎÒÃÇÈ¡ y=1  ÒÔ¼° \phi_{\alpha}=1,
ÄÇô V=0  
ÓÐÌ«¶àÇé¸Ð£¬¼´Ê¹Ç¿Çó£¬Ò²Ã»·¨µÃµ½; ÓÐÌ«¶àÓÇÉË£¬¼´Ê¹·ÅÆú£¬Ò²Ã»·¨Íü»³; »¹ÓÐÄÇÌ«¶àÌ«¶à¡­¡­È´ÓÀÔ¶ÓëÎÞÄÎÆ½ÐÐ
3Â¥2010-04-26 15:58:02
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 5 ¸ö»Ø´ð

bluesine

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

¿ÆÔ·Ð¡Ä¾³æ

¡ï
СÓêÃÈÃÈ(½ð±Ò+1):лл½â´ð£¬Óн± 2010-04-27 11:36
lipeng0327(½ð±Ò+1): 2010-04-27 18:30
V=V(y),

ÈÝÒ×Ö¤Ã÷V>=0;
ÁîV'(y)=0ÕÒµ½×¤µãy*=|phi_{\alpha}|^(1/(2-\alpha));
»Ø´úµÃµ½V(y*)=0,˵Ã÷0ÊÇΨһµÄ¼«Öµµã¡£

Æä´Î£¬ÈÝÒ׵õ½V''(y)>0;˵Ã÷£¬y*ÊǼ«Ð¡Öµµã¡£
×ÛÉÏ£¬Ö¤±Ï¡£

¿ÉÒÔÈ¥³Ô·¹ÁË
°åµÊÒª×öÊ®ÄêÀäÎÄÕ²»·¢Ò»¸ö×Ö
4Â¥2010-04-27 11:18:06
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lipeng0327

ľ³æ (ÕýʽдÊÖ)

Ë®ÊÖ

ÀûÓÃYoung's²»µÈʽ¿ÉÒÔ Ö¤Ã÷

ÇóÖúÍê±Ï
ÔÚ¾øÍûÖÐѰÕÒÏ£Íû£¬ÈËÉúÖÕ½«»Ô»Í¡£
5Â¥2010-04-29 17:56:00
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ×ÊÔ´Óë»·¾³ µ÷¼ÁÉêÇë(333·Ö) +7 holy J 2026-03-21 7/350 2026-03-24 17:24 by xiaohai104
[¿¼ÑÐ] 307Çóµ÷¼Á +5 ³¬¼¶ÒÁ°º´óÍõ 2026-03-24 5/250 2026-03-24 15:46 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 299Çóµ÷¼Á +7 ijijijijλ 2026-03-21 7/350 2026-03-24 15:24 by cuifj
[¿¼ÑÐ] 085404µç×ÓÐÅÏ¢284·ÖÇóµ÷¼Á +4 13659058978 2026-03-24 4/200 2026-03-24 12:15 by syl20081243
[¿¼²©] 26É격×Ô¼ö +3 whh869393 2026-03-24 3/150 2026-03-24 09:55 by 21018060
[¿¼ÑÐ] 341Çóµ÷¼Á(Ò»Ö¾Ô¸ºþÄÏ´óѧ070300) +5 ·¬ÇÑÍ·--- 2026-03-22 6/300 2026-03-23 23:45 by Txy@872106
[¿¼ÑÐ] ²ÄÁÏרҵÇóµ÷¼Á +11 hanamiko 2026-03-18 11/550 2026-03-23 23:12 by peike
[¿¼ÑÐ] 303Çóµ÷¼Á +4 ԪϦԪ 2026-03-20 4/200 2026-03-23 19:00 by macy2011
[¿¼ÑÐ] 291 Çóµ÷¼Á +4 »¯¹¤2026½ì±ÏÒµÉ 2026-03-21 5/250 2026-03-23 16:46 by »¯¹¤2026½ì±ÏÒµÉ
[¿¼ÑÐ] 324Çóµ÷¼Á +6 luckyѽѽѽѼ 2026-03-20 6/300 2026-03-22 16:01 by ColorlessPI
[»ù½ðÉêÇë] ɽ¶«Ê¡ÃæÉÏÏîÄ¿ÏÞ¶îÆÀÉó +4 ʯÈð0426 2026-03-19 4/200 2026-03-22 08:50 by Wei_ren
[¿¼ÑÐ] 297Çóµ÷¼Á +3 ϲ»¶»¹ÊDz»¸ÊÐÄ 2026-03-20 3/150 2026-03-21 18:33 by ѧԱ8dgXkO
[¿¼ÑÐ] 336Çóµ÷¼Á +5 rmc8866 2026-03-21 5/250 2026-03-21 17:24 by ѧԱ8dgXkO
[¿¼ÑÐ] 266Çóµ÷¼Á +3 ÍÛºôºßºôºß 2026-03-20 3/150 2026-03-21 16:46 by barlinike
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖØÇì´óѧ085700×ÊÔ´Óë»·¾³×Ü·Ö308Çóµ÷¼Á +7 īīĮ 2026-03-20 7/350 2026-03-21 16:36 by barlinike
[¿¼ÑÐ] 288Çóµ÷¼Á +16 ÓÚº£º£º£º£ 2026-03-19 16/800 2026-03-20 22:28 by JourneyLucky
[¿¼ÑÐ] 0817 »¯Ñ§¹¤³Ì 299·ÖÇóµ÷¼Á ÓпÆÑо­Àú ÓжþÇøÎÄÕ +22 rare12345 2026-03-18 22/1100 2026-03-20 20:39 by zhukairuo
[¿¼ÑÐ] Ò»Ö¾Ô¸Î÷°²½»Í¨´óѧ ѧ˶ 354Çóµ÷¼Á211»òÕß˫һÁ÷ +3 ÎÒÏëÒª¶ÁÑо¿Éú 2026-03-20 3/150 2026-03-20 20:13 by JourneyLucky
[¿¼ÑÐ] 261ÇóBÇøµ÷¼Á£¬¿ÆÑо­Àú·á¸» +3 Å£Ä̺Üæ 2026-03-20 4/200 2026-03-20 19:34 by JourneyLucky
[¿¼²©] 26²©Ê¿ÉêÇë +3 1042136743 2026-03-17 3/150 2026-03-17 23:30 by ÇáËɲ»ÉÙËæ
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û