Аналитическая геометрия и линейная алгебра. Умнов А.Е. - 282 стр.

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°‚°ˆ        Ò°²ºÓ©®          º¯ˆºÓº¯äÒ¯ºmÈÓÓ©®                   ­ÈÏÒ°             °º°ˆºÒˆ               ÒÏ        ªãËäËӈºm
              1          0           0
      e1 = 0 , e2 = 1 , e3 = 0                       {º°°ˆÈÓºmÒä               ¹º       }mȯȈÒÓºä‚                    Á‚Ó}ÒºÓÈã‚
              0          0           1
      Φ ( x ) = 2ξ1ξ 2 + 2ξ1ξ 3 − 2ξ 2ξ 3             ¹º¯ºÎÈ Ò®                 ˺       °Òääˈ¯ÒÓ©®                  ­ÒãÒÓˮө®
                                                                                 1
      Á‚Ó}ÒºÓÈã B ( x , y )  Ò°¹ºã ϺmÈm Áº¯ä‚ã‚ B ( x , y ) =                (Φ ( x + y ) − Φ ( x ) − Φ ( y ))  °ä
                                                                                 2
      º¹¯ËËãËÓÒË   { ÈÓÓºä °ã‚ÈË                             Φ ( y) = 2η1η 2 + 2η1η3 − 2η 2η3  È
      Φ ( x + y) = 2(ξ1 + η1 )(ξ 2 + η 2 ) + 2(ξ1 + η1 )(ξ 3 + η3 ) − 2(ξ 2 + η 2 )(ξ 3 + η3 ) Ò¹ºˆºä‚

                                                                                                         ξ1                     η1
                 B ( x, y ) = ξ1η 2 + ξ1η3 − ξ 2η3 + η1ξ 2 + η1ξ 3 − η 2ξ 3 Ë x               e
                                                                                                       = ξ 2 Ò y        e
                                                                                                                              = η 2 
                                                                                                         ξ3                     η3
      
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                                                     1 −1 − λ
      ÒäËˈ}º¯ÓÒ λ1 = −2 , λ 2 ,3 = 1 }ºˆº¯©ËÒ«mã« ˆ°«°º­°ˆmËÓÓ©äÒÏÓÈËÓÒ«äÒ
         
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       ( x ) = −2ξ1′ 2 + ξ 2′ 2 + ξ 3′ 2 ÒÓȪˆºäÏÈ}ºÓ҈ ¯Ë ËÓÒËÏÈÈÒ
            
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