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Функции Грина и проводимость. Учебное пособие

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ܩ
஺
଴ఠԜଵଵ
ሺݖሻ
ൌ
݅
ߠሺെݖሻ݁
ݒ
଴
௜ఠ௭
௩
బ
ǡ᩷᩷ܩ
஺
଴ఠԜଶଶ
ሺݖሻ
݅
ൌ
ݒ
଴
ߠሺݖሻ݁
௜ఠ௭
ି
௩
బ
ሺ
Ǥ
ͺǤʹͺ
ɗɬɢ ɮɨɪɦɭɥɵ, ɧɟɫɤɨɥɶɤɨ ɫɢɦɜɨɥɢɱɧɨ, ɦɨɠɧɨ ɡɚɩɢɫɚɬɶ ɜ ɦɚɬɪɢɱɧɨɦ ɜɢɞɟ
ܩ
௜ఠ௭ఙ
ൌെ
݅
ߠሺߪଷݖሻ݁
ݒ
଴
ோ
෠
ሺݖሻ
଴ఠ
௩
బ
య
ǡ᩷᩷ܩ
ሺݖሻ
݅
ൌ
ݒ
ߠሺെߪଷݖሻ݁
଴
஺
෠
଴ఠ
௜ఠ௭ఙ
௩
య
బ
ǤሺͺǤʹͻ
ȼɵɪɚɠɟɧɢɹ ɞɥɹ «ɧɭɥɟɜɵɯ» ɮɭɧɤɰɢɣ Ƚɪɢɧɚ (8.29) ɩɨɡɜɨɥɹɸɬ ɭɫɬɚɧɨɜɢɬɶ ɝɪɚ-
ɧɢɱɧɵɟ ɭɫɥɨɜɢɹ ɞɥɹ ɪɟɲɟɧɢɣ ɭɪɚɜɧɟɧɢɹ (8.25). Ɉɛɨɡɧɚɱɢɦ ɞɥɹ ɩɪɨɫɬɨɬɵ ɜɵɪɚɠɟ-
ɧɢɣ ɫɥɭɱɚɣɧɵɣ ɦɚɬɪɢɱɧɵɣ ɩɨɬɟɧɰɢɚɥ ɤɚɤ ߮ොሺݖሻൌߟሺݖሻ൅ߞሺݖሻԜߪො
ሺାሻ
൅ߞ
כ
ሺݖሻ
ሺିሻ
Ԝߪො
ɦɵ ɦɨɠɟɦ ɩɪɟɞɫɬɚɜɢɬɶ ɪɟɲɟɧɢɟ ɷɬɨɝɨ ɭɪɚɜɧɟɧɢɹ ɜ ɜɢɞɟ ɪɹɞɚ ɚɧɚɥɨɝɢɱɧɨɦɭ (5.10):
ܩ
ᇱ
ሻ
ൌܩ
ோ
෠
଴ఠ
ሺ
ݖെݖ
ᇱ
ሻ
൅׬݀ݖ
ோ
෠
ሺ
ݖǡݖ
ఠ
ோ
෠
ሺ
ሻ߮ොሺ
ݖെݖ
ܩ
ଵ
଴ఠ
ଵ
ோ
෠
ሻ
ݖ
ܩ
ଵ
଴ఠ
ᇱ
ሺ
ሻ
ݖ
ଵ
െݖ
൅ڮሺͺǤ͵Ͳ
Ɋɚɫɫɦɨɬɪɢɦ ݇-ɣ ɱɥɟɧ ɷɬɨɝɨ ɪɹɞɚ ɞɥɹ ɮɭɧɤɰɢɢ ɫ ɥɟɜɵɦ ɢɧɞɟɤɫɨɦ, ɪɚɜɧɵɦ ͳ
׬݀ݖ  ɢɦɟɟɦ ܩ
ோ
෠
଴ఠଵଵ
ଵ݀ݖଶ
ǥ݀ݖ௞Ԝܩ
ሺ
ݖെݖ
ோ
෠
ሺ
ݖെݖ
଴ఠଵଵ
ൈܩ
ሻ
ൌͲ ɩɪɢ ݖ൏ݖ
ଵ
ሻ
߮ො
ଵ
ଵఔ
ோ
෠
଴ఠఔ
ೖశభ
ଵ
ோ
෠
ሺ
ሻ
ݖ
ܩ
ଵ
మ
ሺ
ݖ
ǡఓ
଴ఠఔమఔ
െݖ
௞
య
ᇱ
ሻ
ሺ
ݖ
ଵെݖଶ
ǡ
ሻ
ǥ߮ො
ఔೖఔ
ೖశభ
ሺ
ሻ
ݖ
ൈ
௞
ሺ
ͺǤ͵ͳ
ɜ ɫɨɝɥɚɫɢɢ ɫ (8.27), ɫɥɟɞɨɜɚɬɟɥɶɧɨ ɩɪɢ
ݖ՜െλ ɷɬɨ ɜɵɪɚɠɟɧɢɟ ɫɬɪɟɦɢɬɫɹ ɤ ɧɭɥɸ. ɋɨɜɟɪɲɟɧɧɨ ɚɧɚɥɨɝɢɱɧɵɟ ɪɚɫɫɭɠɞɟ- ɧɢɹ ɩɨɡɜɨɥɹɸɬ ɭɫɬɚɧɨɜɢɬɶ ɫɥɟɞɭɸɳɢɟ ɝɪɚɧɢɱɧɵɟ ɭɫɥɨɜɢɹ ɞɥɹ ɥɸɛɨɝɨ ߥ
ܩ ܩ ܩ ܩ
஺
ఠԜԜଵఔ
ோ
ఠԜԜଵఔ
ோ
ఠԜԜఔଵ
஺
ఠԜԜఔଵ
ሺ ሺ ሺ ሺ
ݖǡݖ ݖǡݖ ݖǡݖ ݖǡݖ
ᇱ
ሻ
՜Ͳǡ ܩ
ᇱ
ሻ
՜Ͳǡ ܩ
ᇱ
ሻ
՜Ͳǡ ܩ
ᇱ
ሻ
՜Ͳǡ ܩ
ோ
ఠԜԜଶఔ
஺
ఠԜԜଶఔ
஺
ఠԜԜఔଶ
ோ
ఠԜԜఔଶ
ᇱ
ሺ
ሻ
ݖǡݖ
՜Ͳ ɩɪɢ ݖ՜λǡ
ᇱ
ሺ
ሻ
ݖǡݖ
՜Ͳ ɩɪɢ ݖ՜െλǡ
ᇱ
ሺ
ሻ
ݖǡݖ
՜Ͳ ɩɪɢ ݖ
ᇱ
ሺ
ሻ
ݖǡݖ
՜Ͳ ɩɪɢ ݖ
ᇱ
՜λǡ
ᇱ
՜െλǤ
ሺ
ͺǤ͵ʹ
8.2. S-ɦɚɬɪɢɰɚ
Ɉɩɪɟɞɟɥɟɧɢɟ S-ɦɚɬɪɢɰɵ
ሻ
ሻ
ǡ
ሻ
ሻ
ሻ
ɉɟɪɟɣɞɟɦ ɬɟɩɟɪɶ ɤ ɨɩɪɟɞɟɥɟɧɢɸ ܵ-ɦɚɬɪɢɰɵ, ɝɥɚɜɧɨɝɨ ɨɛɴɟɤɬɚ ɢɡɥɚɝɚɟɦɨɝɨ
ɩɨɞɯɨɞɚ. ɋ ɷɬɨɣ ɰɟɥɶɸ ɩɟɪɟɩɢɲɟɦ ɭɪɚɜɧɟɧɢɟ ɧɚ ɮɭɧɤɰɢɸ Ƚɪɢɧɚ (8.25) ɜ ɫɥɟɞɭ­ɸɳɟɦ ɜɢɞɟ
μݖ
μ
෠
ሺ
ݖǡݖ
ܩ
ఠ
ͳ
ᇱ
ሻ
ൌ
ൣ݅߱ߪොଷെ݅ߟሺݖሻߪොଷെ݅ߞሺݖሻԜߪො
ݒ
଴
݅
ߪොଷߜሺݖെݖ
െ
ݒ
଴
ሺାሻ
൅݅ߞ
ᇱ
ሻ
Ǥ
כ
ሺݖሻ
ሺିሻ
Ԝߪො
൧ܩ
ᇱ
෠
ሺ
ሻ
ݖǡݖ
ఠ
െ
ሺ
ͺǤ͵͵
Ⱦɥɹ ɞɚɥɶɧɟɣɲɟɝɨ ɫɞɟɥɚɟɦ ɧɟɫɤɨɥɶɤɨ ɭɞɨɛɧɵɯ ɨɛɨɡɧɚɱɟɧɢɣ. ȼɦɟɫɬɨ ɤɨɨɪɞɢ-
ɧɚɬɵ ɨɞɧɨɦɟɪɧɨɝɨ ɩɪɨɫɬɪɚɧɫɬɜɚ ݖ ɜɜɟɞɟɦ ɭɫɥɨɜɧɨɟ «ɜɪɟɦɹ» ݐൌݖȀݒ
, ɬɨɝɞɚ ɭɪɚɜ-
଴
ɧɟɧɢɟ ɩɪɢɦɟɬ ɜɢɞ
81
ሻ

μ
μݐ
ᇱ
෠
ሺ
ሻ
ݐǡݐ
ܩ
ఠ
ൌൣ݅߱ߪො
െ݅ߟሺݐሻߪොଷെ݅ߞሺݐሻԜߪො
ଷ
െ
Ⱦɚɥɟɟ ɜɜɟɞɟɦ ɮɭɧɤɰɢɢ Ƚɪɢɧɚ ݃ො
ɭɩɪɨɳɟɧɢɹ ɮɨɪɦɭɥ ɜ ɞɚɥɶɧɟɣɲɟɦ
෠
ሺ
ݐǡݐ
ܩ
ఠ
ɬɨɝɞɚ

μ
μݐ
ᇱ
ሺ
ሻ
ݐǡݐ
݃ො
ఠ
ൌൣ݅߱ߪො
െ݅ߟሺݐሻߪොଷ൅ߞሺݐሻԜߪො
ଷ
൅ߜሺݐെݐ
ɝɞɟ ɦɵ ɩɟɪɟɨɛɨɡɧɚɱɢɥɢ
െ݅ߞሺݐሻ՜ߞሺݐሻǡ᩷݅ߞ
݅
ߪොଷߜሺݐെݐ
ݒ
଴
ሺ
ݐǡݐԢ
ఠ
ᇱ
ሻ
ൌെ
ሺାሻ
൅݅ߞ
ᇱ
ሻ
Ǥ
ሻ
, ɜɵɞɟɥɹɹ ɧɟɤɨɬɨɪɵɟ ɦɧɨɠɢɬɟɥɢ ɞɥɹ
݅
ݒ
଴
ᇱ
ሺ
ሻ
ݐǡݐ
ఠ
ሺାሻ
ǡ ሺݐሻ
ߪො
൅ߞ
՜ߞ
݃ො
ᇱ
ሻ
כ
ଷ
כ
כ
כ
ሺݐሻ
ǡ
ሺݐሻ
ሺݐሻǤ
ሺିሻ
Ԝߪො
൧ܩ
ᇱ
෠
ሺ
ሻ
ݐǡݐ
ఠ
െ
ሺ
ሺ
ሺିሻ
Ԝߪො
൧݃ො
ᇱ
ሺ
ሻ
ݐǡݐ
ఠ
൅
ሺ ሺ
ͺǤ͵Ͷ
ͺǤ͵ͷ
ͺǤ͵͸ ͺǤ͵͹
ሻ
ሻ
ሻ ሻ
Ʉɚɤ ɮɭɧɤɰɢɢ ɧɨɜɨɣ ɩɟɪɟɦɟɧɧɨɣ ݐ, ɫɥɭɱɚɣɧɵɟ ɩɨɥɹ ߟሺݐሻ ɢ ߞሺݐ
ሻ
ɢɦɟɸɬ ɫɥɟɞɭ-
ɸɳɢɟ ɤɨɪɪɟɥɹɰɢɨɧɧɵɟ ɫɜɨɣɫɬɜɚ
ͳ
ۦߞሺݐ
ۦߟሺݐ
ሻ
ۧ
ൌͲǡ᩷ۦߞሺݐሻߞ
ሻ
ۧ
ൌͲǡ᩷ۦߟሺݐሻߟሺݐ
כ
ᇱ
ሺ
ሻ
ۧ
ݐ
ൌ
ᇱ
ͳ
Ԝߜሺݐെݐ
߬
ଶ
ሻ
ۧ
ൌ
Ԝߜሺݐെݐ
߬
ଵ
ᇱ
ሻ
ᇱ
ሻ
ǡ
ǡ᩷ۦߞሺݐሻߞሺݐ
ᇱ
ሻ
ۧ
ൌͲǤሺͺǤ͵ͻ
ሺ
ͺǤ͵ͺ
ȼɜɟɞɟɦ ɨɛɨɡɧɚɱɟɧɢɟ
ܮ
෠
ሺݐሻ
ൌ݅߱ߪො
ఠ
െ݅ߟሺݐሻߪොଷ൅ߞሺݐሻԜߪො
ଷ
݅߱െ݅ߟሺݐ
ൌ൬
כ
ሺݐሻ
ߞ
ሻ
ሺାሻ
ߞሺݐ
െ݅߱൅݅ߟሺݐ
൅Ƀ
ሻ ሻ
൰ǡ
כ
ሺݐሻ
ሺିሻ
Ԝߪො
ൌ
ሺ
ͺǤͶͲ
ɬɨɝɞɚ ɭɪɚɜɧɟɧɢɟ ɧɚ ɮɭɧɤɰɢɸ Ƚɪɢɧɚ ɩɪɢɦɟɬ ɜɢɞ
μ
Ԝ݃ො
μݐ
ɉɪɨɢɧɬɟɝɪɢɪɭɟɦ ɷɬɨ ɭɪɚɜɧɟɧɢɟ ɩɨ ɢɧɬɟɪɜɚɥɭ
ᇱ
ሺ
ሻ
݃ො
ݐǡݐ
ఠ
ൌ݃ො
ሺ
ఠ
ᇱ
ሻ
ൌܮ
௧
൅න݀
௧
బ
෠
ሺݐሻ
ఠ
෠
ሺ߬ሻ
߬ܮ
ఠ
ሺ
ݐǡݐ
ఠ
ᇱ
ሻ
ݐ
ǡݐ
଴
ᇱ
ሺ
Ԝ݃ො
ሻ൅ߜሺ
ݐǡݐ
ఠ
ሺ
ݐ
ᇱ
ሺ
Ԝ݃ො
ሻ൅ߠሺ
߬ǡݐ
ఠ
ݐെݐ
ሻ
ǡݐ
, ɩɨɥɭɱɢɦ
଴
ᇱ
ሻ
ݐെݐ
െݐ
ሻǤሺ
଴
ሺ
ͺǤͶͳ
ͺǤͶʹ
Ǥ
ᇱ
ᇱ
ሻߠሺ
ݐ
Ɏɨɪɦɚɥɶɧɨ, ɪɟɲɚɹ ɷɬɨ ɭɪɚɜɧɟɧɢɟ ɦɟɬɨɞɨɦ ɢɬɟɪɚɰɢɣ, ɬɚɤ ɠɟ ɤɚɤ ɷɬɨ ɞɟɥɚɟɬɫɹ
ɜ ɤɜɚɧɬɨɜɨɣ ɬɟɨɪɢɢ ɩɨɥɹ, ɩɪɢ ɜɵɜɨɞɟ ܵ-ɦɚɬɪɢɰɵ ɜ ɩɪɟɞɫɬɚɜɥɟɧɢɢ ɜɡɚɢɦɨɞɟɣ-
ɫɬɜɢɹ, ɩɟɪɟɩɢɲɟɦ ɷɬɨ ɭɪɚɜɧɟɧɢɟ ɜ ɮɨɪɦɟ
ሻ ሻ
ሻ
ሻ
ሻ
82
݃ො
ᇱ
ሻ
ൌܵ
መ
ሺ
ሻ
ݐǡݐ
ఠ
݃ො
଴
ሺ
ݐǡݐ
ఠ
ᇱ
ሺ
ሻ
ݐ
൅ܵ
ǡݐ
ఠ
଴
ᇱ
መ
ሺ
ሻߠሺ
ݐǡݐ
ఠ
ݐെݐ
ᇱ
ሻߠሺ
ᇱ
ሻǤሺ
ݐ
െݐ
଴
ͺǤͶ͵
Ɂɞɟɫɶ ɩɨɹɜɢɥɫɹ ɨɩɟɪɚɬɨɪ ɷɜɨɥɸɰɢɢ, ɨɩɪɟɞɟɥɹɟɦɵɣ ɜɵɪɚɠɟɧɢɟɦ
መ
ሺ
ݐǡݐ
ܵ
ఠ
෡
௅ ɨɩɟɪɚɬɨɪ ɯɪɨɧɨɥɨɝɢɱɟɫɤɨɝɨ ɭɩɨɪɹɞɨɱɟɧɢɹ. ɗɬɨ ɢ ɟɫɬɶ ܵ-ɦɚɬɪɢɰɚ. ɋɪɚɡɭ
ɝɞɟ
௧
෡
ሻ
ൌ
଴
௧
௧
ቊන݀
௧
బ
߬ܮ
෠
ሺ߬ሻ
ቋ
ǡ
ఠ
ሺ
ͺǤͶͶ
ɨɬɦɟɬɢɦ ɨɱɟɜɢɞɧɨɟ ɩɨɥɭɝɪɭɩɩɨɜɨɟ ɫɜɨɣɫɬɜɨ ܵ-ɦɚɬɪɢɰɵ
መ
ሺ
ሻ
ݐǡݐ
ܵ
ఠ
ൌܵ
଴
Ⱦɥɹ ɨɛɪɚɬɧɨɣ ɦɚɬɪɢɰɵ ܵ
መ
መ
ఠ
ܵ
ఠ
ିଵ
መ
ሺ
ሻ
ሺ
ݐǡݐ
ܵ
ଵ
ሺ
ሻ
ݐǡݐ
, ɨɩɪɟɞɟɥɟɧɧɨɣ ɨɛɵɱɧɵɦ ɨɛɪɚɡɨɦ:
଴
ିଵ
መ
ሺ
ݐǡݐ
ఠ
଴
ሻ
ݐ
ܵ
ଵǡݐ଴
መ
ఠ
ሺ
ݐǡݐ
ǡ᩷ɩɪɢ᩷ݐ൐ݐ
ሻ
ൌͳ෠ǡ
଴
ఠ
ሻ
ଵ൐ݐ଴
Ǥ
ሺ
ͺǤͶͷ
ሺ
ͺǤͶ͸
ɢɦɟɟɬ ɦɟɫɬɨ ɩɪɟɞɫɬɚɜɥɟɧɢɟ
௧
෠
ሺ߬ሻ
ቋ
߬ܮ
௧
బ
ǡ
ఠ
ሺ
ͺǤͶ͹
ɝɞɟ
ିଵ
መ
ሺ
ݐǡݐ
ܵ
ఠ
ିଵ
෡
௅ ɨɩɟɪɚɬɨɪ ɚɧɬɢɭɩɨɪɹɞɨɱɟɧɢɹ ɩɨ ݐ. ɂɡ ɨɩɪɟɞɟɥɟɧɢɹ ɨɛɪɚɬɧɨɣ ɦɚɬɪɢ-
௧
ିଵ
෡
ሻ
ൌ
଴
ቊെන݀
௧
ɰɵ (8.46) ɢ ɩɨɥɭɝɪɭɩɩɨɜɨɝɨ ɫɜɨɣɫɬɜɚ (8.45) ɩɨɥɭɱɚɟɬɫɹ ɫɜɨɣɫɬɜɨ «ɤɨɦɩɟɧɫɚɰɢɢ»:
ܵ
መ
ሺ
ݐ
ఠ
ଵǡݐ଴
ሻ
ൌܵ
ିଵ
መ
ఠ
መ
ሺ
ሻ
ሺ
ݐǡݐ
ܵ
ଵ
ሻ
ݐǡݐ
ఠ
ǡ᩷ɩɪɢ᩷ݐ൐ݐ
଴
ଵ൐ݐ଴
Ǥ
ሺ
ͺǤͶͺ
ɋ ɩɨɦɨɳɶɸ ɷɬɨɝɨ ɫɜɨɣɫɬɜɚ ɢɡ ɭɪɚɜɧɟɧɢɹ (8.43) ɦɨɠɧɨ ɩɨɥɭɱɢɬɶ ɭɪɚɜɧɟɧɢɟ ɫ
ɨɛɪɚɬɧɨɣ ɦɚɬɪɢɰɟɣ
݃ො
ǡݐ
ሻ
ൌܵ
መ
ሺ
ሻ
ݐǡݐ
ఠ
ሺ
݃ො
ݐǡݐ
଴
ఠ
ሺ
ݐ
ఠ
଴
ିଵ
ᇱ
ିଵ
ᇱ
ሻ
െܵ
ᇱ
መ
ሺ
ሻߠሺ
ݐ
ǡݐ
ఠ
଴
ݐെݐ
ᇱ
ሻߠሺ
ᇱ
ሻǤሺ
ݐ
െݐ
ͺǤͶͻ
଴
ɋɜɨɣɫɬɜɚ S-ɦɚɬɪɢɰɵ
Ɋɚɡɨɛɶɟɦ ɨɬɪɟɡɨɤ
ɷɬɨɦ ɨɛɨɡɧɚɱɢɦ ߜൌݐ
ǡݐሿ ɧɚ ܰ ɪɚɜɧɵɯ ɱɚɫɬɟɣ ݐ଴൏ݐଵ൏ڮݐ
ݐ
଴
௜ାଵെݐ௜
ൌሺݐെݐ
ሻ
Ȁܰ, ɬɨɝɞɚ ɢɧɬɟɝɪɚɥ ɜ ɨɩɪɟɞɟɥɟɧɢɢ ܵ-ɦɚɬ-
଴
ேିଵ൏ݐே
ൌݐ, ɩɪɢ
ሾ
ɪɢɰɵ (8.44) ɦɨɠɧɨ ɡɚɦɟɧɢɬɶ ɢɧɬɟɝɪɚɥɶɧɨɣ ɫɭɦɦɨɣ
ሺ߬ሻ
ே
ൌ෍ܮ
௜ୀଵ
ఠ௜
ǡ
ሺ
ͺǤͷͲ
௧
න݀
௧
బ
߬ܮ
෠
ఠ
ɝɞɟ
ܮ
ൌ݅߱ߜԜߪොଷെ݅ߟ௜Ԝߪොଷ൅ߞ௜Ԝߪො
ఠ௜
ሺାሻ
൅ߞ
݅߱ߜെ݅ߟ
ሺିሻ
כ
Ԝߪො
ൌ൬
௜
כ
ߞ
௜
௜
െ݅߱ߜ൅݅ߟ
ߞ
௜
൰ሺͺǤͷͳ
௜
ɢ ɜɜɟɞɟɧɵ ɨɛɨɡɧɚɱɟɧɢɹ
ሻ
ሻ
ሻ ሻ
ሻ
ሻ
ሻ
ሻ
ሻ
ߟ
ൌߟሺݐ
௜
ሻ
ߜǡ᩷ߞ
௜
83
ൌߞሺݐ
௜
ሻ
ߜǤ
௜
ሺ
ͺǤͷʹ
ሻ
ɗɬɢ ɫɥɭɱɚɣɧɵɟ ɩɟɪɟɦɟɧɧɵɟ ɢɦɟɸɬ ɫɥɟɞɭɸɳɢɟ ɫɪɟɞɧɢɟ ɩɨ ɪɟɚɥɢɡɚɰɢɢ ɫɥɭ-
ɱɚɣɧɨɝɨ ɩɨɥɹ
ۦߟ
௜ۧ௜௠
ൌۦߞ
ൌͲǡ᩷ۦߟ௜ߟ
௜ۧ௜௠
௞ۧ௜௠ൌߜ௜௞
ߜ
ǡ᩷ۦߞ௜ߞ
߬
ଵ
כ
ۧ
௜௠ൌߜ௜௞
௞
ߜ
ǤሺͺǤͷ͵
߬
ଶ
ɂɫɩɨɥɶɡɭɹ (8.50), ܵ-ɦɚɬɪɢɰɭ ɦɨɠɧɨ ɩɪɟɞɫɬɚɜɢɬɶ ɜ ɜɢɞɟ ɩɪɟɞɟɥɚ ɨɬ ɤɨɧɟɱɧɨɝɨ
ɩɪɨɢɡɜɟɞɟɧɢɹ ɦɚɬɪɢɰ
ே
ܵ
መ
ሺ
ݐǡݐ
ఠ
෡
ሻ
ൌ
଴
ෑ݁
௧
ɉɨɫɤɨɥɶɤɭ, ɨɱɟɜɢɞɧɨ, ܮ
௅
௜ୀଵ
ഘ೔
ൌ݁
ൌͲ ɬɨ ݁
ఠ௜
ܵ
௅
ഘಿ
௅
ഘಿషభ
݁
መ
ሺ
ݐǡݐ
ఠ
௅
௅
ഘమ
ഘభ
݁
ൌͳ ɢ ɫɥɟɞɨɜɚɬɟɥɶɧɨ
଴
ሻ
ڮ݁
௅
ഘ೔
ൌͳǡ
ǡ᩷ܰ՜λǡߜ՜ͲǤሺͺǤͷͶ
ሺ
ͺǤͷͷ
ሻ
ሻ
ሻ
ɬɨ ɟɫɬɶ ܵ-ɦɚɬɪɢɰɚ ɭɧɢɦɨɞɭɥɹɪɧɚ, ɤɪɨɦɟ ɬɨɝɨ ɢɡ (8.40) ɦɨɠɧɨ ɭɜɢɞɟɬɶ, ɱɬɨ ɦɚɬ­ɪɢɰɵ ܮ ɢ ɤɚɤ ɫɥɟɞɫɬɜɢɟ ܵ
ɩɪɢɧɚɞɥɟɠɚɬ ɚɥɝɟɛɪɟ Ʌɢ ݏݑሺͳǡͳሻ, ɚ ɫɥɟɞɨɜɚɬɟɥɶɧɨ ɤɚɠɞɚɹ ɦɚɬɪɢɰɚ ݁
ఠ௜
መ
ሺ
ሻ
ݐǡݐ
ɩɪɢɧɚɞɥɟɠɚɬ ɝɪɭɩɩɟ ܷܵሺͳǡͳ
ఠ
଴
ɩɪɢ ɥɢɧɟɣɧɵɯ ɩɪɟɨɛɪɚɡɨɜɚɧɢɹɯ ɧɚ ʠ
ଶ
ɫɨɯɪɚɧɹɸɬ ɮɨɪɦɭ
ሻ
. Ɇɚɬɪɢɰɵ ɢɡ ɷɬɨɣ ɝɪɭɩɩɵ
ଶ
ȁ
ȁ
ݖ
ଵ
െȁݖ
ଶ
ȁ
ɢ ɨɛɥɚɞɚɸɬ
ଶ
௅
ɫɜɨɣɫɬɜɨɦ
ܵ
መ
ఠԜଶଶ
ൌܵ
כ
መ
ఠԜଵଵ
ǡ᩷᩷ܵ
መ
ఠԜଶଵ
ൌܵ
כ
መ
ఠԜଵଶ
ǡ᩷᩷หܵ
መ
ఠԜଵଵ
หଶെหܵ
መ
หଶൌͳǤሺͺǤͷ͸
ఠԜଵଶ
Ⱥɧɚɥɨɝɢɱɧɨ ɨɛɪɚɬɧɚɹ ɦɚɬɪɢɰɚ ɩɪɟɞɫɬɚɜɢɦɚ ɜ ɜɢɞɟ
ே
ܵ
ିଵ
መ
ሺ
ݐǡݐ
ఠ
ିଵ
෡
ሻ
ൌ
଴
௧
ෑ݁
௜ୀଵ
௅
ି௅
ഘ೔
ൌ݁
ഘభ
ି௅
݁
ഘమ
ڮ݁
ି௅
ഘಿషభ
ି௅
ഘಿ
݁
ǡܰ՜λǡԜ߂՜ͲሺͺǤͷ͹
ɟɟ ɦɚɬɪɢɱɧɵɟ ɷɥɟɦɟɧɬɵ ɫ ɭɱɟɬɨɦ ɭɧɢɦɨɞɭɥɹɪɧɨɫɬɢ ɜɵɪɚɠɚɸɬɫɹ ɱɟɪɟɡ ɦɚɬɪɢɱ-
ɧɵɟ ɷɥɟɦɟɧɬɵ ܵ
መ
ɨɛɵɱɧɵɦ ɨɛɪɚɡɨɦ:
ఠ
ିଵ
መ
ܵ
ఠ
ൌቆ
መ
ܵ െܵ
ఠԜଶଶ
መ
ఠԜଶଵ
െܵ
ܵ
መ
ఠԜଵଶ
መ
ఠԜଵଵ
ቇǤ
ሺ
ͺǤͷͺ
ɉɪɢ ɜɵɱɢɫɥɟɧɢɢ ɜɵɫɨɤɨɱɚɫɬɨɬɧɨɣ ɩɪɨɜɨɞɢɦɨɫɬɢ ɛɭɞɟɬ ɩɨɥɟɡɧɵɦ ɫɥɟɞɭɸ-
ɳɟɟ «ɤɚɥɢɛɪɨɜɨɱɧɨɟ» ɩɪɟɨɛɪɚɡɨɜɚɧɢɟ ܵ-ɦɚɬɪɢɰɵ (ɮɢɝɭɪɧɵɦɢ ɫɤɨɛɤɚɦɢ ɨɛɨɡɧɚ­ɱɟɧɚ ɮɭɧɤɰɢɨɧɚɥɶɧɚɹ ɡɚɜɢɫɢɦɨɫɬɶ ܵ-ɦɚɬɪɢɰɵ ɨɬ ɩɨɥɟɣ ߞሺݐሻ ɢ ߞ
݁
௜ఠభఙ
ෝ
௧
య
መ
ܵ
൫ݐǡݐᇱǡ൛ߞ
ఠିఠ
భ
כ
ሚ
ሚ
ǡߞ
ൟ൯݁
ఠ
ఠ
భ
భ
ି௜ఠభఙ
ᇲ
ෝ
௧
య
መ
ሺ
ൌܵ
ఠ
ݐǡݐ
ᇱ
ǡሼߞǡߞ
כ
ሺݐሻ
)
כ
ሻ
ሽ
ሺ
ǡ
ͺǤͷͻ
ɝɞɟ
ߞ
ሚ
ሺݐሻൌߞሺݐሻ
ఠ
భ
ିଶ௜ఠభ௧
݁
ǡ᩷᩷ߞ
כ
ሚ
ሺݐሻ
ఠ
భ
ൌߞ
כ
ଶ௜ఠభ௧
ሺݐሻ
݁
Ǥ
ሺ
ͺǤ͸Ͳ
ഘ೔
ሻ
ሻ
ሻ
ሻ ሻ
84
Ɋɚɫɩɢɲɟɦ ɞɥɹ ɫɫɵɥɨɤ ɮɨɪɦɭɥɭ (8.59) ɞɥɹ ɦɚɬɪɢɱɧɵɯ ɷɥɟɦɟɧɬɨɜ

݁
ି௜ఠభ௧
݁
݁
௜ఠభ௧
௜ఠభ௧
݁
ି௜ఠభ௧
መ
ܵ
ఠିఠభԜଵଵ
መ
ܵ
ఠିఠభԜଵଶ
መ
ܵ
ఠିఠభԜଶଵ
መ
ܵ
ఠିఠభԜଶଶ
൫ݐǡݐᇱǡ൛ߞ
൫ݐǡݐᇱǡ൛ߞ
൫ݐǡݐᇱǡ൛ߞ
൫ݐǡݐᇱǡ൛ߞ
כ
ሚ
ሚ
ǡߞ
ൟ൯݁
ఠ
ఠ
భ
భ
כ
ሚ
ሚ
ǡߞ
ఠ
ఠ
భ
భ
כ
ሚ
ሚ
ǡߞ
ൟ൯݁
ఠ
ఠ
భ
భ
כ
ሚ
ሚ
ǡߞ
ఠ
ఠ
భ
భ
ൟ൯݁ ൟ൯݁
ି௜ఠభ௧
௜ఠభ௧
ି௜ఠభ௧
௜ఠభ௧
ᇲ ᇲ ᇲ ᇲ
መ
ൌܵ
ఠԜଵଵ
መ
ൌܵ
ఠԜଵଶ
መ
ൌܵ
ఠԜଶଵ
መ
ൌܵ
ఠԜଶଶ
ᇱ
כ
ǡሼߞǡߞ ǡሼߞǡߞ ǡሼߞǡߞ ǡሼߞǡߞ
ሻ
ሽ
כ
ሻ
ሽ
ሺ
ͺǤ͸ͳ
כ
ሻ
ሽ
כ
ሻ
ሽ
ሺ
ݐǡݐ
ᇱ
ሺ
ݐǡݐ
ᇱ
ሺ
ݐǡݐ
ᇱ
ሺ
ݐǡݐ
8.3. ȼɵɪɚɠɟɧɢɟ ɮɭɧɤɰɢɣ Ƚɪɢɧɚ ɱɟɪɟɡ ɷɥɟɦɟɧɬɵ S-ɦɚɬɪɢɰɵ
ȼɵɪɚɡɢɦ ɬɟɩɟɪɶ ɮɭɧɤɰɢɢ Ƚɪɢɧɚ ɱɟɪɟɡ ɦɚɬɪɢɱɧɵɟ ɷɥɟɦɟɧɬɵ ܵ-ɦɚɬɪɢɰɵ. ɗɬɨ
ɧɭɠɧɨ ɞɟɥɚɬɶ ɨɬɞɟɥɶɧɨ ɞɥɹ ɡɚɩɚɡɞɵɜɚɸɳɟɣ ɢ ɨɩɟɪɟɠɚɸɳɟɣ ɮɭɧɤɰɢɣ. ɇɚɱɧɟɦ ɫ ɡɚɩɚɡɞɵɜɚɸɳɟɣ ɮɭɧɤɰɢɢ. ɂɫɯɨɞɢɦ ɢɡ ɭɪɚɜɧɟɧɢɹ (8.43), ɤɨɬɨɪɨɟ ɡɚɩɢɲɟɦ ɡɞɟɫɶ ɜ ɢɧɞɟɤɫɚɯ (ɩɨ ɩɨɜɬɨɪɹɸɳɢɦɫɹ ɢɧɞɟɤɫɚɦ ɩɨɞɪɚɡɭɦɟɜɚɟɬɫɹ ɫɭɦɦɢɪɨ­ɜɚɧɢɟ)
݃ො
ோ
ఠԜఓఔ
ሺ
ݐǡݐ
ᇱ
ሻ
ൌܵ
መ
ఠԜఓఒ
ሺ
ݐǡݐ
ோ
ሻ
݃ො
଴
ఠԜఒఔ
ᇱ
ǡݐ
ሻ
൅ܵ
መ
ఠԜఓఔ
ሺ
ݐ
଴
ᇱ
ሺ
ሻߠሺ
ݐǡݐ
ݐെݐ
ᇱ
ሻߠሺ
ᇱ
ሻǤሺ
ݐ
െݐ
ͺǤ͸ʹ
଴
ሻ
ሻ
ɍɫɬɪɟɦɢɦ ɬɟɩɟɪɶ ݐ
՜െλ ɢ ɜɨɫɩɨɥɶɡɭɟɦɫɹ ɝɪɚɧɢɱɧɵɦɢ ɭɫɥɨɜɢɹɦɢ (8.32),
଴
ɬɨɝɞɚ
݃ො
ோ
ఠԜఓఔ
ᇱ
ሻ
ൌܵ
መ
ఠԜఓଶ
ሺ
ݐǡെλሻ݃ො
ሺ
ݐǡݐ
ோ
ఠԜଶఔ
ሺ
െλǡݐ
ᇱ
መ
ሻ
൅ܵ
ఠԜఓఔ
ᇱ
ሺ
ሻߠሺ
ݐǡݐ
ݐെݐ
ᇱ
ሻǡሺ
ͺǤ͸͵
ɬɟɩɟɪɶ ɜɵɛɟɪɟɦ ߤൌʹ, ɫɞɟɥɚɟɦ ɩɪɟɞɟɥɶɧɵɣ ɩɟɪɟɯɨɞ ݐ՜λ, ɫɨɝɥɚɫɧɨ (8.32), ɩɨ-
ɥɭɱɢɦ
Ͳൌܵ
መ
ఠԜଶଶ
ሺ
λǡെλሻ݃ො
ோ
ఠԜଶఔ
ሺ
െλǡݐ
ᇱ
መ
ሻ
൅ܵ
ఠԜଶఔ
ሺ
λǡݐ
ᇱ
ሻ
ǡ
ሺ
ͺǤ͸Ͷ
ɨɬɤɭɞɚ
݃ො
ோ
ఠԜଶఔ
ሺ
െλǡݐ
ᇱ
ሻ
ൌെ
መ
ܵ
መ
ܵ
ఠԜଶఔ
ఠԜଶଶ
ሺ
λǡݐ
ሺ
λǡെλ
ᇱ
ሻ
ǡ
ሻ
ሺ
ͺǤ͸ͷ
ɩɨɞɫɬɚɜɥɹɹ ɷɬɨ ɜ (8.63), ɩɨɥɭɱɚɟɦ
݃ො
ோ
ఠԜఓఔ
መ
ሺ
ܵ
ݐǡെλሻԜܵ
ൌെ
ఠԜఓଶ
መ
ܵ
ᇱ
ሺ
ሻ
ݐǡݐ
ఠԜଶଶ
መ
ሺ
λǡെλ
ఠԜଶఔ
ሺ
ሻ
λǡݐ
ᇱ
ሻ
൅ܵ
መ
ఠԜఓఔ
ᇱ
ሺ
ሻߠሺ
ݐǡݐ
ݐെݐ
ᇱ
ሻ
ǡሺͺǤ͸͸ሻ
ɷɬɚ ɮɨɪɦɭɥɚ ɜɟɪɧɚ ɩɪɢ ɥɸɛɨɦ ɡɧɚɱɟɧɢɢ ɚɪɝɭɦɟɧɬɨɜ, ɟɫɥɢ ɩɪɢ ɷɬɨɦ ݐ൏ݐԢ, ɬɨ
݃ො
ோ
ఠఓఔ
መ
ሺ
ܵ
ݐǡെλሻԜܵ
ൌെ
ఠԜఓଶ
መ
ܵ
ᇱ
ሺ
ሻ
ݐǡݐ
ఠԜଶଶ
መ
ሺ
λǡെλ
ఠԜଶఔ
ሺ
ሻ
λǡݐ
ᇱ
ሻ
ǡ᩷ɩɪɢ᩷ݐ൏ݐᇱǤ
ሺ
ͺǤ͸͹
ɋɨɜɟɪɲɟɧɧɨ ɚɧɚɥɨɝɢɱɧɵɟ ɪɚɫɫɭɠɞɟɧɢɹ ɩɪɢɜɨɞɹɬ ɤ ɫɥɟɞɭɸɳɢɦ ɜɵɪɚɠɟɧɢɹɦ
ɞɥɹ ɨɩɟɪɟɠɚɸɳɟɣ ɮɭɧɤɰɢɢ Ƚɪɢɧɚ
85
ሻ
ሻ ሻ
ሻ
݃ො
݃ො
஺
ఠԜఓఔ
ሺ
ݐǡݐ
஺
ఠԜఓఔ
ᇱ
ሺ
ሻ
ݐǡݐ
ൌെ
ᇱ
ሻ
መ
ܵ
ఠԜఓଵ
ൌെ
ሺ
ݐǡെλሻԜܵ መ
ܵ
ఠԜଵଵ
መ
ܵ
ఠԜఓଵ
መ
ሺ
λǡെλ
ሺ
ݐǡെλሻԜܵ መ
ܵ
ఠԜଵଵ
ఠԜଵఔ
ሺ
ሺ
λǡݐ
ሻ
መ
ఠԜଵఔ
λǡെλ
ᇱ
ሺ
ሻ
ሻ
λǡݐ
൅ܵ
ᇱ
መ
ఠԜఓఔ
ሻ
ᇱ
ሺ
ሻߠሺ
ݐǡݐ
ݐെݐ
ǡ᩷ɩɪɢ᩷ݐ൏ݐᇱǤ
ᇱ
ሻǡሺ
ͺǤ͸ͺ
ሺ
ͺǤ͸ͻ
ɇɚɦ ɩɨɬɪɟɛɭɸɬɫɹ ɜ ɞɚɥɶɧɟɣɲɟɦ «ɭɤɨɪɨɱɟɧɧɵɟ» ɮɨɪɦɭɥɵ ɬɢɩɚ (8.67) ɢ (8.69)
ɞɥɹ ɤɨɦɛɢɧɚɰɢɢ ɚɪɝɭɦɟɧɬɨɜ ݐ൐ݐԢ. ɂɯ ɦɨɠɧɨ ɩɨɥɭɱɢɬɶ ɢɡ ɭɪɚɜɧɟɧɢɹ ( 8.49) ɫ ɦɚɬ-
ିଵ
መ
ሺ
ሻ
ݐǡݐ
ɪɢɰɟɣ ܵ
ఠ
݃ො ݃ො
, ɜɵɜɨɞ ɚɧɚɥɨɝɢɱɧɵɣ ɩɪɨɞɟɥɚɧɧɨɦɭ ɞɚɟɬ
଴
ோ
ఠԜఓఔ
஺
ఠԜఓఔ
ሺ ሺ
ݐǡݐ ݐǡݐ
ିଵ
መ
ሺ
ܵ
ఠԜఓଵ
ᇱ
ሻ
ൌ
ିଵ
መ
ሺ
ܵ
ఠԜఓଶ
ᇱ
ሻ
ൌ
λǡݐሻԜܵ
ିଵ
መ
ܵ
ఠԜଵଵ
λǡݐሻԜܵ
ିଵ
መ
ܵ
ఠԜଶଶ
ିଵ
መ
ఠԜଵఔ
ሺ
λǡെλ
ିଵ
መ
ఠԜଶఔ
ሺ
λǡെλ
ሺ ሺ
ᇱ
ݐ
ሻ
ᇱ
ݐ
ሻ
ǡെλ ǡെλ
ሻ ሻ
ǡ᩷ɩɪɢ᩷ݐ൐ݐᇱǡ ǡ᩷ɩɪɢ᩷ݐ൐ݐᇱǤ
ሺ
ͺǤ͹Ͳ
ሺ
ͺǤ͹ͳ
Ɏɨɪɦɭɥɵ (8.67), (8.69), (8.70), (8.71) ɪɟɲɚɸɬ ɩɨɫɬɚɜɥɟɧɧɭɸ ɡɚɞɚɱɭ ɜɵɪɚɠɟ-
ɧɢɹ ɮɭɧɤɰɢɣ Ƚɪɢɧɚ ɱɟɪɟɡ ɦɚɬɪɢɱɧɵɟ ɷɥɟɦɟɧɬɵ ܵ-ɦɚɬɪɢɰɵ.
8.4. ȼɵɪɚɠɟɧɢɟ ɩɪɨɜɨɞɢɦɨɫɬɢ ɨɞɧɨɦɟɪɧɨɝɨ ɦɟɬɚɥɥɚ
ɱɟɪɟɡ ɷɥɟɦɟɧɬɵ ࡿ-ɦɚɬɪɢɰɵ
ɋɬɚɪɬɭɟɦ ɫ ɨɞɧɨɦɟɪɧɨɝɨ ɜɚɪɢɚɧɬɚ ɮɨɪɦɭɥɵ (4.65) (ɡɞɟɫɶ ԰ൌͳ, ɩɨɫɥɟ ɞɟɣ-
ɫɬɜɢɹ ɨɩɟɪɚɬɨɪɨɜ ׏ ɧɭɠɧɨ ɩɨɥɨɠɢɬɶ ݕൌݖ ɢ ݕ
ஶ
ିஶ
ோ
ሺ
߱൅ߗǡݕǡݖ
ሻ
ɱɟɪɟɡ ɞɥɢɧɧɨɜɨɥɧɨɜɵɟ ɮɭɧɤɰɢɢ Ƚɪɢɧɚ ܩ
ଵ
ఓିଵ
ሻ
:
ఔୀଵǡଶఓୀଵǡଶ
݀݊
ி
߱Ԝቆ
݀߱
஺
ሻ
ܩ
ଵ
௜௣బఎഋ௭ି௜௣బఎഌ௭
ߪሺߗǡݖሻൌ
ͺߨ݉
ܩ
ȼɵɪɚɡɢɦ ɮɭɧɤɰɢɢ ܩሺݖǡݖ
ɢɫɩɨɥɶɡɭɹ ɫɢɦɜɨɥ ߟ
ܩሺݖǡݖ
ଶ
݁
ൌሺെͳ
ఓ
ଶ
ଵ
Ԝන݀ݖଵԜන ݀
ሻ
ൌ෍෍݁
ɩɨɞɫɬɚɜɥɹɹ ɜ (8.72) ɢ ɞɟɣɫɬɜɭɹ ɨɩɟɪɚɬɨɪɚɦɢ ׏ ɬɨɥɶɤɨ ɧɚ ɛɵɫɬɪɨ ɦɟɧɹɸɳɢɟɫɹ ɷɤɫ- ɩɨɧɟɧɬɵ ݁
ߪሺߗሻൌെ
௜௣బఎഋ௭
, ɩɨɫɥɟ ɧɟɫɥɨɠɧɨɝɨ ɜɵɱɢɫɥɟɧɢɹ ɩɨɥɭɱɢɦ
ଶ
݁
ʹߨ݉
ଶ
݌
଴
Ԝන݀ݖଵԜන ݀
ଶ
ିஶ
ஶ
߱Ԝቆ
݀݊
ி
݀߱
ሺ߱ሻ
ቇԜൣܩ
ɉɨɫɥɟ ɭɫɪɟɞɧɟɧɢɹ ɡɚɜɢɫɢɦɨɫɬɶ ߪሺߗǡݖሻ ɨɬ ݖ ɢɫɱɟɡɧɟɬ, ɢ ɦɵ ɧɟ ɛɭɞɟɦ ɟɟ ɭɤɚ-
ɡɵɜɚɬɶ. ȼɵɪɚɡɢɦ ɮɭɧɤɰɢɢ ܩ෠ ɱɟɪɟɡ ݃ො ɩɨ ɮɨɪɦɭɥɟ (8.35), ɩɨɥɭɱɢɦ
)
ଵൌݖଵ
ሺ߱ሻ
ቇ൫׏௭െ׏௬൯൫׏
ሺ
߱ǡݕ
ǡݖሻǤ
ଵ
ᇲ
ܩ
ோ
෠
ሺ
ఠାఆ
෠
ఓఔ
ݖǡݖ
ሺ
ଵ
ݖǡݖ
ሻ
െ׏
௬
భ
భ
ሺ
ݖ
ǡݖሻߪොଷ൧ǤሺͺǤ͹Ͷ
ଵ
൯Ԝ
ሺ
ͺǤ͹ʹ
෠
ሺ
ݖǡݖ
ఓఔ
ଵ
ሺ
ͺǤ͹͵
௭
ሻ
ǡ
ଵ
஺
෠
ߪො
ܩ
ଷ
ఠ
ሻ ሻ
ሻ ሻ
ሻ
ሻ
,
ሻ
ሻ
86
ஶ
ିஶ
߱Ԝቆ
݀݊
ி
݀߱
ሺ߱ሻ
ቇԜሾ݃ො
ோ
ఠାఆ
ݐǡݐ
஺
ሻ
ሺ
ሻ
ݐ
ଵ
ǡݐ
ሿ
ǤሺͺǤ͹ͷ
݃ො
ଵ
ఠ
ሺ
ߪሺߗሻൌ
ଶ
ݒ
݁
଴
Ԝන݀ݐଵԜන ݀
ʹߨ
ȼɵɪɚɠɟɧɢɟ ɩɨɞ  ɜ (8.75) ɮɚɤɬɢɱɟɫɤɢ ɧɚ ɡɚɜɢɫɢɬ ɨɬ ߱, ɢ ɜ ɧɟɦ ɦɵ ɩɨɥɨɠɢɦ
߱ൌͲ, ɬɨɝɞɚ ɢɧɬɟɝɪɚɥ ɩɨ ɱɚɫɬɨɬɟ ߱ ɪɚɜɟɧ െͳ, ɜ ɢɬɨɝɟ ɩɨɥɭɱɢɦ
ଶ
ݒ
݁
ߪሺߗሻൌെ
଴
Ԝන݀ݐଵԜሾ݃ො
ʹߨ
ோ
ఆ
ሺ
ݐǡݐ
஺
ሻ
ሺ
ሻ
݃ො
ଵ
ሿ
ݐ
ǡݐ
Ǥ
ଵ
଴
ሺ
ͺǤ͹͸
ሻ
ሻ
Ɋɚɡɛɢɜɚɟɦ ɢɧɬɟɝɪɚɥ ɩɨ ݐ
ߪሺߗሻൌെ
ɧɚ ɞɜɚ ɨɬ െλ ɞɨ ݐ ɢ ɨɬ ݐ ɞɨ λ:
ଵ
௧
ଶ
݁
ݒ
ʹߨ
ஶ
൅න ݀
௧
଴
ቊ
න݀
ିஶ
ݐଵԜԜሾ݃ො
ݐଵԜሾ݃ො
ோ
ሺ
ݐǡݐ
ఆ
ோ
ሺ
ݐǡݐ
ఆ
஺
ሻ
ሺ
݃ො
ଵ
଴
஺
ሻ
ሺ
ሻ
݃ො
ଵ
ሻ
ݐ
ǡݐ
ଵ
ሿ
ݐ
ǡݐ
൅
ଵ
଴
ሿ
ቋ
ɢ ɢɫɩɨɥɶɡɭɟɦ ɮɨɪɦɭɥɵ (8.67), (8.69), (8.70), (8.71) ɞɥɹ ɮɭɧɤɰɢɣ ݃෤, ɩɨɥɭɱɢɦ
መ
ఆԜఓଶ
መ
ܵ
ݐଵԜ
ሺ
ݐǡെλሻԜܵ
መ
ܵ
ఆԜଶଶ
ିଵ
ఆԜఓଵ
ሺ
ሺ
λǡെλ
ଶ
ݒ
ߪሺߗሻൌ
݁
ʹߨ
ஶ
൅න ݀
௧
଴
ቊ
න݀
ݐଵԜ
௧
ିஶ
ܵ
ɂɫɩɨɥɶɡɭɹ ɬɟɩɟɪɶ ɮɨɪɦɭɥɭ (8.58), ɜɵɪɚɡɢɦ ɦɚɬɪɢɱɧɵɟ ɷɥɟɦɟɧɬɵ ܵ
଴
ቊ
መ
, ɩɨɥɭɱɢɦ
ஶ
න݀
ିஶ
ߠሺݐെݐ
ݐ
ଵ
ɦɚɬɪɢɱɧɵɟ ɷɥɟɦɟɧɬɵ ܵ
ଶ
݁
ߪሺߗሻൌ
ݒ
ʹߨ
λǡݐሻԜܵ
ିଵ
መ
ܵ
ఆԜଵଵ
መ
ఆԜଶఔ
ሻ
ܭ
ଵ
መ
ܵ
ିଵ
መ
ఆԜଵఔ
ሺ
λǡെλ
ሺ
λǡݐ
ሻ
ሺݐሻ
ఆ ఆԜଶଶ
ሺ
ݐ
ǡെλ
ଵ
ሻ
ିଵ
መ
ሻ
ܵ
ଵ
଴Ԝఔଶ
ሺ
ሻ൅ߠሺ
ܮ
ݐ
ఆ
ଵ
ሺ
λǡെλሻܵ
ሻ
ሺ
λǡݐ ܵ
መ
଴Ԝଵଵ
Ԝ
መ
ܵ
଴Ԝଶଶ
መ
ିଵ
଴Ԝఔଵ
ݐ
ଵ
ሺ
ሺ
ݐ
ଵ
መ
ܵ
଴Ԝଵଵ
ିଵ
መ
ሻ
Ԝܵ
ଵ
଴Ԝଶఓ
ሺ
λǡെλ
െݐሻܭ
λǡെλ
ǡെλሻԜܵ
ሺ
λǡെλ
ሺ
ݐǡെλ
ሻ
ሺ
ݐ
ఆ
ଵ
ሻ
መ
ሻ
଴Ԝଵఓ
ܮ
ఆ
ሻ
ሺ
ሻ ቋ
ሺݐሻ
λǡݐ Ǥ
ିଵ
መ
ቋ
ǡሺͺǤ͹ͻ
ሻ
ɝɞɟ
ሺ
λǡݐሻܵ
መ
መ
଴Ԝଵଶ
መ
መ
ఆԜଵଶ
ିଵ
ఆԜఓଵ
଴Ԝఔଵ
ሺ
ሺ
λǡݐሻൌ λǡݐሻܵ ሺ
ݐǡെλሻൌ
ሺ
ݐǡെλሻܵ
መ
ఆԜଶଵ
መ
଴Ԝଶଵ
ሺ
λǡݐሻǡ
ሺ
ݐǡെλሻǤ
ൌܵ
ൌܵ
መ
ఆԜଶଶ
መ
ሺ
଴Ԝଵଵ
ܮ
ఆ
ሺ
ݐǡെλሻܵ
ሺݐሻ
ܭ
ఆ
λǡݐሻܵ
ሺݐሻ
መ
ൌܵ
መ
ఆԜଶଶ
ିଵ
መ
ൌܵ
ఆԜଵఔ
ሺ
ݐǡെλሻെܵ
଴Ԝଵଵ
መ
଴Ԝଵఓ
ሺ
λǡݐሻെܵ
ሺ
ݐǡെλሻܵ
Ɏɨɪɦɭɥɵ (8.79), (8.80), (8.81) ɞɚɸɬ ɢɫɤɨɦɵɟ ɜɵɪɚɠɟɧɢɹ, ɫɜɹɡɵɜɚɸɳɢɟ ɩɪɨ-
ɜɨɞɢɦɨɫɬɶ ɫ ɷɥɟɦɟɧɬɚɦɢ ܵ-ɦɚɬɪɢɰɵ.
Ʌɢɬɟɪɚɬɭɪɚ
Ɍɟɯɧɢɤɚ ܵ-ɦɚɬɪɢɰɵ, ɞɥɹ ɜɵɱɢɫɥɟɧɢɹ ɩɪɨɜɨɞɢɦɨɫɬɢ ɨɞɧɨɦɟɪɧɵɯ ɢ ɤɜɚɡɢ-ɨɞ-
ɧɨɦɟɪɧɵɯ ɦɟɬɚɥɥɨɜ ɢɡɥɨɠɟɧɚ ɜ [7].
87
ሺ
ͺǤ͹͹
൅
ሺ
ͺǤ͹ͺ
ɱɟɪɟɡ
ሺ
ͺǤͺͲ
ሺ
ͺǤͺͳ
ሻ
ሻ
ሻ
ሻ ሻ
Ʉɨɧɬɪɨɥɶɧɵɟ ɜɨɩɪɨɫɵ
1. Ʉɚɤɢɦ ɝɪɚɧɢɱɧɵɦ ɭɫɥɨɜɢɹɦ ɭɞɨɜɥɟɬɜɨɪɹɸɬ ɦɚɬɪɢɱɧɵɟ ɷɥɟɦɟɧɬɵ ɨɩɟɪɟɠɚ-
ɸɳɟɣ ɢ ɡɚɩɚɡɞɵɜɚɸɳɟɣ ɮɭɧɤɰɢɣ Ƚɪɢɧɚ?
2. ȼɵɩɢɫɚɬɶ ɜɵɪɚɠɟɧɢɹ ɞɥɹ ܵመ ɢ ܵ
3. Ʉɚɤɨɣ ɝɪɭɩɩɟ ɩɪɟɨɛɪɚɡɨɜɚɧɢɣ ɩɪɨɫɬɪɚɧɫɬɜɚ ʠ
4. ȼɵɩɢɫɚɬɶ ɜɵɪɚɠɟɧɢɟ ɞɥɹ ɫɬɚɬɢɱɟɫɤɨɣ ɩɪɨɜɨɞɢɦɨɫɬɢ ɱɟɪɟɡ ɷɥɟɦɟɧɬɵ
መ
ܵ
-ɦɚɬɪɢɰɵ.
ିଵ
መ
ɦɚɬɪɢɰ.
ଶ
ɩɪɢɧɚɞɥɟɠɢɬ ܵ
መ
-ɦɚɬɪɢɰɚ?
88
Ƚɥɚɜɚ 9
ɋɌȺɌɂɑȿɋɄȺə ɉɊɈȼɈȾɂɆɈɋɌɖ
ɈȾɇɈɆȿɊɇɈȽɈ ɆȿɌȺɅɅȺ
ɉɨɥɭɱɟɧɧɵɟ ɮɨɪɦɭɥɵ ɞɥɹ ɩɪɨɜɨɞɢɦɨɫɬɢ (8.79), (8.80), (8.81) ɞɨɜɨɥɶɧɨ ɫɥɨɠ-
ɧɵ. Ɉɧɢ ɫɭɳɟɫɬɜɟɧɧɨ ɭɩɪɨɳɚɸɬɫɹ ɩɪɢ ߗൌͲ. ȼ ɷɬɨɦ ɫɥɭɱɚɟ ܭ
ሺݐሻ
଴
ɢ ɜ ɮɨɪɦɭɥɟ (8.79) ɢɧɬɟɝɪɚɥ ɩɨ ɜɫɟɣ ɨɫɢ ɧɭɠɧɨ ɡɚɦɟɧɢɬɶ ɧɚ ɢɧɬɟɝɪɚɥ ɩɨ ɤɨɧɟɱɧɨɦɭ
ɨɛɪɚɡɰɭ ɞɥɢɧɵ ܮ, ɩɪɢ ɷɬɨɦ ɞɥɹ ɭɞɨɛɫɬɜɚ ɜɜɟɞɟɦ «ɜɪɟɦɹ» ݐ
ൌܮȀݒ
௅
. Ɍɨɝɞɚ ɞɥɹ ɩɪɨ-
଴
ɜɨɞɢɦɨɫɬɢ ɦɵ ɩɨɥɭɱɢɦ ɫɪɚɜɧɢɬɟɥɶɧɨ ɩɪɨɫɬɨɟ ɜɵɪɚɠɟɧɢɟ
ଶ
݁
ܮ
ߪሺͲሻൌ
ʹߨ
ൣܵ
መ
଴Ԝଶଶ
መ
ሺ
ݐ
ǡͲሻܵ
௅
଴Ԝଵଵ
ሺ
ݐ
ǡͲሻ൧ିଵǤ
௅
Ɉɛɨɡɧɚɱɢɦ
ൌܮ
ሺݐሻ
ൌͳ,
଴
ሺ
ͻǤͳ
ሻ
ܴሺݐ
௅
ሻ
ൌൣܵ
መ
଴Ԝଶଶ
መ
ሺ
ݐ
ǡͲሻܵ
௅
଴Ԝଵଵ
ሺ
ݐ
௅
ǡͲሻ൧ିଵǡ
ሺ
ͻǤʹ
ɬɨɝɞɚ
ଶ
݁
ܮ
ߪሺͲሻൌ
ʹߨ
ܴሺݐ
௅
ሻ
ǡ
ɬɚɤɢɦ ɨɛɪɚɡɨɦ ɡɚɞɚɱɚ ɫɜɟɥɚɫɶ ɤ ɭɫɪɟɞɧɟɧɢɸ ɜɟɥɢɱɢɧɵ ܴሺݐ
ሻ
ɩɨ ɫɥɭɱɚɣɧɵɦ ɩɨ-
௅
ሺ
ͻǤ͵
ɥɹɦ ߟ ɢ ߞ. Ɇɵ ɪɟɲɢɦ ɷɬɭ ɡɚɞɚɱɭ ɫɜɟɞɟɧɢɟɦ ɟɟ ɤ ɡɚɞɚɱɟ ɨ ɫɥɭɱɚɣɧɵɯ ɛɥɭɠɞɚɧɢɹɯ
ɧɚ ɩɥɨɫɤɨɫɬɢ Ʌɨɛɚɱɟɜɫɤɨɝɨ.
9.1. S-ɦɚɬɪɢɰɚ ɢ ɫɥɭɱɚɣɧɨɟ ɛɥɭɠɞɚɧɢɟ ɧɚ ɩɥɨɫɤɨɫɬɢ Ʌɨɛɚɱɟɜɫɤɨɝɨ
ɂɞɟɹ ɷɬɨɝɨ ɩɨɞɯɨɞɚ ɫɨɫɬɨɢɬ ɜ ɫɥɟɞɭɸɳɟɦ. Ɋɚɫɫɦɨɬɪɢɦ ɩɪɟɞɫɬɚɜɥɟɧɢɟ ܵ-ɦɚɬ­ɪɢɰɵ ɜ ɜɢɞɟ ݐ-ɭɩɨɪɹɞɨɱɟɧɧɨɝɨ ɩɪɨɢɡɜɟɞɟɧɢɹ (8.54). ȼɵɩɢɲɟɦ ɞɥɹ ɭɞɨɛɫɬɜɚ ɟɝɨ ɟɳɟ ɪɚɡ, ɨɩɭɫɤɚɹ ɢɧɞɟɤɫ 0, ɫɨɨɬɜɟɬɫɬɜɭɸɳɢɣ ɱɚɫɬɨɬɟ ߗൌͲ
ே
௅
௅
መ
ሺ
ܵ
ݐǡݐ
෡
ሻ
ൌ
଴
ෑ݁
௧
௜ୀଵ
ɝɞɟ
ൌെ݅ߟ௜Ԝߪොଷ൅ߞ௜Ԝߪො
ܮ
௜
ɚ ɫɥɭɱɚɣɧɵɟ ɜɟɥɢɱɢɧɵ ߟ
Ʉɚɠɞɚɹ ɦɚɬɪɢɰɚ ݁
ɢ ߞ
௜
௅
೔
ɜ ɷɬɨɦ ɩɪɨɢɡɜɟɞɟɧɢɢ ɹɜɥɹɟɬɫɹ ɛɥɢɡɤɨɣ ɤ ɟɞɢɧɢɱɧɨɣ ɭɧɢ-
ɦɨɞɭɥɹɪɧɨɣ ɦɚɬɪɢɰɟɣ ɜɢɞɚ
ಿ
ሺାሻ
݁
௅
൅ߞ
೔
ൌ݁
ɢɦɟɸɬ ɤɨɪɪɟɥɹɬɨɪɵ (8.53).
௜
ಿషభ
ڮ݁
כ
௜
௅
௅
మ
భ
݁
ǡ᩷ܰ՜λǡԜߜ՜Ͳǡ
െ݅ߟ ߞ
כ
௜
௜ߞ௜
݅ߟ
൰ǡ
௜
ሺିሻ
Ԝߪො
ൌ൬
ሺ
ሺ
ͻǤͶ
ͻǤͷ
ሻ ሻ
ሻ
ሻ
89
ܽ
೔
ൌ൬
௜ܾ௜
כ
ܾ
௜
൰Ǥ
כ
ܽ
௜
ሺ
ͻǤ͸
௅
݁
ɉɨɫɬɚɜɢɦ ɜ ɫɨɨɬɜɟɬɫɬɜɢɟ ɷɬɨɣ ɦɚɬɪɢɰɟ ɞɪɨɛɧɨ-ɥɢɧɟɣɧɨɟ ɩɪɟɨɛɪɚɡɨɜɚɧɢɟ ɤɨɦ­ɩɥɟɤɫɧɨɣ ɩɥɨɫɤɨɫɬɢ
ܽ
ݖ൅ܾ
௜
ݖհݓ
ሺݖሻ
௜
ൌ
ܾ
כ
ݖ൅ܽ
௜
௜
Ǥ
כ
௜
ሺ
ͻǤ͹
ɇɟɬɪɭɞɧɨ ɭɛɟɞɢɬɶɫɹ, ɱɬɨ ɞɪɨɛɧɨ-ɥɢɧɟɣɧɵɟ ɩɪɟɨɛɪɚɡɨɜɚɧɢɹ ɬɚɤɨɜɨ ɜɢɞɚ, ɜɨ­ɩɟɪɜɵɯ, ɩɟɪɟɜɨɞɢɬ ɟɞɢɧɢɱɧɵɣ ɤɪɭɝ
ȁݖȁ
൑ͳ ɜ ɫɟɛɹ, ɚ ɜɨ-ɜɬɨɪɵɯ ɹɜɥɹɸɬɫɹ ɞɜɢɠɟ-
ɧɢɟɦ ɦɟɬɪɢɤɢ
ଶ
݀ݏ
ଶ
ൌͶԜ
ሺ
ͳെȁݖ
݀ݖ݀ݖ᪄
ȁ
ଶሻଶ
ൌͶԜ
݀ݔ
ሾ
ͳെሺݔ
൅݀ݕ
ଶ൅ݕଶ
ଶ
ሺ
ଶ
ሻ
ሿ
ͻǤͺ
ɨɩɪɟɞɟɥɟɧɧɨɣ ɜɧɭɬɪɢ ɤɪɭɝɚ. ɉɨɫɥɟɞɧɟɟ ɨɡɧɚɱɚɟɬ, ɱɬɨ ɟɫɥɢ ݓ ɢ ݖ ɫɜɹɡɚɧɵ ɫɨɨɬɧɨ-
ɲɟɧɢɟɦ (9.7), ɬɨ
݀ݓ݀ݓ᪄
ሺ
ͳെȁݓ
ȁ
ଶሻଶ
ൌ
ሾͳെȁݖȁ
݀ݖ݀ݖ᪄
ଶሿଶ
Ǥ
ሺ
ͻǤͻ
ȿɞɢɧɢɱɧɵɣ ɤɪɭɝ ɜɦɟɫɬɟ ɫ ɦɟɬɪɢɤɨɣ (9.8) ɹɜɥɹɟɬɫɹ ɦɨɞɟɥɶɸ Ʉɥɟɣɧɚ ɝɟɨɦɟɬɪɢɢ Ʌɨɛɚɱɟɜɫɤɨɝɨ. ȼ ɷɬɨɣ ɦɨɞɟɥɢ ɩɪɹɦɵɦɢ ɹɜɥɹɸɬɫɹ ɞɭɝɢ ɨɤɪɭɠɧɨɫɬɟɣ, ɩɟɪɩɟɧɞɢ­ɤɭɥɹɪɧɵɟ ɝɪɚɧɢɱɧɨɣ ɨɤɪɭɠɧɨɫɬɢ ɟɞɢɧɢɱɧɨɝɨ ɤɪɭɝɚ (ɷɬɨ ɝɪɚɧɢɱɧɚɹ ɨɤɪɭɠɧɨɫɬɶ ɧɚɡɵɜɚɟɬɫɹ ɚɛɫɨɥɸɬɨɦ). Ɍɚɤɢɦ ɨɛɪɚɡɨɦ, ɞɪɨɛɧɨ-ɥɢɧɟɣɧɵɟ ɩɪɟɨɛɪɚɡɨɜɚɧɢɹ ɜɢɞɚ (9.7) ɹɜɥɹɸɬɫɹ ɞɜɢɠɟɧɢɹɦɢ ɜ ɝɟɨɦɟɬɪɢɢ Ʌɨɛɚɱɟɜɫɤɨɝɨ, ɨɧɢ ɩɟɪɟɜɨɞɹɬ ɩɪɹɦɵɟ ɜ ɩɪɹɦɵɟ ɢ ɫɨɯɪɚɧɹɸɬ
ɪɚɫɫɬɨɹɧɢɹ ɜ ɦɟɬɪɢɤɟ (9.8).
Ɇɵ ɦɨɠɟɦ ɬɟɩɟɪɶ ܵ-ɦɚɬɪɢɰɟ (9.4) ɩɨɫɬɚɜɢɬɶ ɜ ɫɨɨɬɜɟɬɫɬɜɢɟ ɤɨɦɩɨɡɢɰɢɸ ɫɥɭ-
ɱɚɣɧɵɯ ɞɪɨɛɧɨ-ɥɢɧɟɣɧɵɯ ɩɪɟɨɛɪɚɡɨɜɚɧɢɣ
ሻ
ሻ
ሻ
ሻ
ݓෝ
לݓෝ
ே
לڮלݓෝଶלݓෝଵǡ
ேିଵ
ሺ
ͻǤͳͲ
ɢ ɪɚɫɫɦɨɬɪɟɬɶ ɷɬɭ ɩɨɫɥɟɞɨɜɚɬɟɥɶɧɨɫɬɶ ɤɚɤ ɪɟɚɥɢɡɚɰɢɸ ɫɥɭɱɚɣɧɨɝɨ ɛɥɭɠɞɚɧɢɹ ɧɚ ɩɥɨɫɤɨɫɬɢ Ʌɨɛɚɱɟɜɫɤɨɝɨ. Ⱦɟɣɫɬɜɢɬɟɥɶɧɨ, ɨɬɨɛɪɚɠɟɧɢɟ (9.10) ɟɫɬɶ ɨɬɨɛɪɚɠɟɧɢɟ
ɷɬɨɣ ɩɥɨɫɤɨɫɬɢ ɩɨɫɥɟ ɩɟɪɜɵɯ ܰ ɲɚɝɨɜ ɛɥɭɠɞɚɧɢɹ. ȿɫɥɢ ݖ
௅ ɧɟɤɨɬɨɪɚɹ ɩɪɨɢɡ-
଴
ɜɨɥɶɧɚɹ ɧɚɱɚɥɶɧɚɹ ɬɨɱɤɚ, ɬɨ
ሺ
ሻሺ
ݖேൌݓෝேלڮלݓෝ
ݖ
ଵ
଴
ɟɫɬɶ ܰ-ɹ ɬɨɱɤɚ ɬɪɚɟɤɬɨɪɢɢ ɫɥɭɱɚɣɧɨɝɨ ɛɥɭɠɞɚɧɢɹ ɫ ɧɚɱɚɥɨɦ ɜ ݖ
, ɚ ɩɨɫɥɟɞɨɜɚ-
଴
ͻǤͳͳ
ɬɟɥɶɧɨɫɬɶ
ݖ
ǡԜݖଵǡԜݖଶǡԜǥǡԜݖேǡ
଴
ሺ
ͻǤͳʹ
ɡɚɞɚɟɬ ɜɫɸ ɬɪɚɟɤɬɨɪɢɸ ɫɥɭɱɚɣɧɨɝɨ ɛɥɭɠɞɚɧɢɹ ɢɡ ܰ ɲɚɝɨɜ (ɪɢɫ. 9.1).
90
ሻ
ሻ
ሻ
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