| ²é¿´: 2352 | »Ø¸´: 46 | |||||||||
| ¡¾½±Àø¡¿ ±¾Ìû±»ÆÀ¼Û40´Î£¬×÷ÕßhylpyÔö¼Ó½ð±Ò 31.6 ¸ö | |||||||||
hylpyר¼Ò¹ËÎÊ (ÖªÃû×÷¼Ò)
|
[×ÊÔ´]
Ëæ»ú·ÖÎö½²Òå(Ó¢ÎÄ--A.E.Kyprianou)
|
||||||||
|
Ëæ»ú·ÖÎö½²Òå(Ó¢ÎÄ--A.E.Kyprianou) Lecture Notes. Contents 1 Some discrete motivation 3 1.1 Zero mean random walks . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Martingales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.3 Discrete time stochastic integrals . . . . . . . . . . . . . . . . . . 11 1.4 Finite variance martingales . . . . . . . . . . . . . . . . . . . . . 12 1.5 Simple random walks and martingale representation . . . . . . . 13 1.6 Gaussian random walks and measure change . . . . . . . . . . . . 15 1.7 Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2 Construction of Brownian motion 19 2.1 Continuous time stochastic processes . . . . . . . . . . . . . . . . 19 2.2 Existence of Brownian motion . . . . . . . . . . . . . . . . . . . . 20 2.3 Brownian motion with continuous paths . . . . . . . . . . . . . . 24 2.4 Our notation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 2.5 Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 3 Paths of Brownian motion 30 3.1 Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 4 Martingales and the Strong Markov Property 38 4.1 Martingales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 4.2 Stopped (super)martingales . . . . . . . . . . . . . . . . . . . . . 41 4.3 Application to the fluctuation of Brownian motion . . . . . . . . 42 4.4 The Strong Markov Property . . . . . . . . . . . . . . . . . . . . 45 4.5 Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 5 Distributional properties of Brownian motion 52 5.1 Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 6 Basic functional analysis 58 6.1 Some elementary Lp theory . . . . . . . . . . . . . . . . . . . . . 58 6.2 Some elementary Hilbert space theory . . . . . . . . . . . . . . . 62 6.3 Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 7 Two Hilbert spaces 68 7.1 The space M2 T . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 7.2 The space H2T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 7.3 Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 8 Stochastic integration 77 8.1 Stochastic integrals for simple processes . . . . . . . . . . . . . . 77 8.2 Itˆo integrals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 8.3 A broader class of integrands . . . . . . . . . . . . . . . . . . . . 83 8.4 The need for calculus . . . . . . . . . . . . . . . . . . . . . . . . . 84 8.5 Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 9 Itˆo calculus 88 9.1 Quadratic variation for martingales . . . . . . . . . . . . . . . . . 90 9.2 Proof of Theorem 160 . . . . . . . . . . . . . . . . . . . . . . . . 94 9.3 A sample calculation . . . . . . . . . . . . . . . . . . . . . . . . . 98 9.4 Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 10 Martingale representation 101 10.1 Proof of The Martingale Representation Theorem . . . . . . . . . 102 10.2 Other representations . . . . . . . . . . . . . . . . . . . . . . . . 106 10.3 Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 11 Girsanov¡¯s Theorem 109 11.1 Proof of The Third Girsanov Theorem . . . . . . . . . . . . . . . 112 11.2 Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 |
» ±¾Ìû¸½¼þ×ÊÔ´Áбí
-
»¶Ó¼à¶½ºÍ·´À¡£ºÐ¡Ä¾³æ½öÌṩ½»Á÷ƽ̨£¬²»¶Ô¸ÃÄÚÈݸºÔð¡£
±¾ÄÚÈÝÓÉÓû§×ÔÖ÷·¢²¼£¬Èç¹ûÆäÄÚÈÝÉæ¼°µ½ÖªÊ¶²úȨÎÊÌ⣬ÆäÔðÈÎÔÚÓÚÓû§±¾ÈË£¬Èç¶Ô°æÈ¨ÓÐÒìÒ飬ÇëÁªÏµÓÊÏ䣺xiaomuchong@tal.com - ¸½¼þ 1 : Ëæ»ú·ÖÎö½²Òå(Ó¢ÎÄ--A.E.Kyprianou).pdf
2015-08-20 08:58:22, 648.99 K
» ÊÕ¼±¾ÌûµÄÌÔÌûר¼ÍƼö
AllenµÄÓ¢ÎÄÔ°æ+°Ù¿Æ | µç×ÓÊé×ÊÔ´ | ¼ÆËãÊýѧÓë¾¼Ãͳ¼Æ | AllenµÄÊýѧ |
¿ÆÑÐÏà¹Ø |
» ²ÂÄãϲ»¶
308Çóµ÷¼Á
ÒѾÓÐ3È˻ظ´
ÇóbÇøÔºÐ£µ÷¼Á
ÒѾÓÐ5È˻ظ´
0854AI CV·½ÏòÕÐÊÕµ÷¼Á
ÒѾÓÐ4È˻ظ´
296Çóµ÷¼Á
ÒѾÓÐ7È˻ظ´
302Çóµ÷¼Á
ÒѾÓÐ4È˻ظ´
086000ÉúÎïÓëÒ½Ò©292Çóµ÷¼Á
ÒѾÓÐ5È˻ظ´
±±¿Æ281ѧ˶²ÄÁÏÇóµ÷¼Á
ÒѾÓÐ14È˻ظ´
²ÄÁÏÓ뻯¹¤ 322Çóµ÷¼Á
ÒѾÓÐ5È˻ظ´
333Çóµ÷¼Á
ÒѾÓÐ11È˻ظ´
²ÄÁÏר˶ 335 ·ÖÇóµ÷¼Á
ÒѾÓÐ3È˻ظ´
» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:
Multiwfn 2013ÄêÊîÆÚÅàѵ°à¸ÐÏëÓëÔÓ̸
ÒѾÓÐ44È˻ظ´
¡¾Ë÷Òý¡¿¹úÄÚÍâ¸÷ÖÖͳ¼ÆÑ§Ãâ·Ñ×ÊÁÏ biostatistics ÉúÎïͳ¼Æ
ÒѾÓÐ15È˻ظ´
33Â¥2015-08-28 12:29:31
¼òµ¥»Ø¸´
muxinjin2Â¥
2015-08-20 09:00
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
Atlantischen3Â¥
2015-08-20 14:37
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
peterflyer4Â¥
2015-08-20 15:12
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
xmc1411185Â¥
2015-08-20 17:37
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
ha16686Â¥
2015-08-20 21:16
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
wjy20117Â¥
2015-08-21 08:31
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
7528792908Â¥
2015-08-21 08:53
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
°¨Ñ©ÊçÙ»9Â¥
2015-08-21 10:09
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
°¨Ñ©ÊçÙ»10Â¥
2015-08-21 10:19
»Ø¸´
¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
liuqiang6811Â¥
2015-08-21 13:03
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
29733873012Â¥
2015-08-21 21:18
»Ø¸´
ÈýÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
zbxue13Â¥
2015-08-22 00:43
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
daijzh14Â¥
2015-08-22 18:14
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
ql311fz15Â¥
2015-08-22 20:17
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
Yanshengtai16Â¥
2015-08-22 23:05
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
Quan.17Â¥
2015-08-23 06:25
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
Quan.18Â¥
2015-08-23 06:28
»Ø¸´
¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
Sugar_cane19Â¥
2015-08-23 09:10
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
FMStation20Â¥
2015-08-23 11:37
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
leezhangyi21Â¥
2015-08-23 12:44
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
wyf_199922Â¥
2015-08-23 14:26
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
1093123Â¥
2015-08-24 10:29
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
aaron198824Â¥
2015-08-24 10:59
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
jyhustb25Â¥
2015-08-24 11:45
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
fingerlake26Â¥
2015-08-24 16:24
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
ybiao27Â¥
2015-08-25 19:36
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
ɳÀË33028Â¥
2015-08-26 12:47
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
gebecca29Â¥
2015-08-27 08:17
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
andizhai30Â¥
2015-08-28 07:18
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
tigerwood231Â¥
2015-08-28 07:39
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
aaron198832Â¥
2015-08-28 11:31
»Ø¸´
¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
jml50634Â¥
2015-09-03 18:55
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
wqqǾޱǽ½Ç35Â¥
2015-10-03 14:33
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
Liuren_Leo36Â¥
2015-12-05 21:21
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
czw509237Â¥
2016-01-05 20:32
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
alfredzzx38Â¥
2016-07-10 10:31
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
ɳÀË33039Â¥
2016-07-31 17:56
»Ø¸´
¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
aaron198840Â¥
2016-08-03 12:57
»Ø¸´
¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
wblium41Â¥
2016-08-12 14:16
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
tianwk42Â¥
2018-08-14 00:21
»Ø¸´
ÎåÐÇºÃÆÀ
lele_71943Â¥
2018-09-21 11:12
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
fingerlake44Â¥
2019-05-14 10:04
»Ø¸´
¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
ÏÌ»¨Éú45Â¥
2020-03-23 12:55
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
zhiwei.hao46Â¥
2020-08-16 22:53
»Ø¸´
ÎåÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡
tangise47Â¥
2020-08-27 22:17
»Ø¸´
ÈýÐÇºÃÆÀ ¶¥Ò»Ï£¬¸Ðл·ÖÏí£¡














»Ø¸´´ËÂ¥