PRINSIPHOI VARIATSIONII MEKhANIKA

PRINSIPHOI VARIATSIONII MEKhANIKA, du prinsipi mekhanikaro guyand, ni qonuniyathoi umumii hodisahoi mekhanikiro tav­sif medidand; bo yorii in qonuniyatho muodilahoi harakat (b khud holati muvozinatii) sistemahoi me­khanikiro hosil mekunand. Prinsipihoi variatsionii mekhanika bo muodilahoe, ki koordinata, surat va tezshavii variatsionii nuqtaro darbar megirand, ifoda meyoband: differensiali va integrali meshavand. Prinsiphoi variatsionii  differensialii mekhanika khususiyathoi harakathoi haqiqii sistemaro dar lahzahoi ikhtiyorii vaqt tavsif medihand, prinsiphoi variatsionii integralii mekhanika khusu­siyathoi harakathoi haqiqii siste­maro dar fosilahoi mahdudi vaqt tavsif medidand. Prinsipihoi variatsionii mekhanika inchunin baroi hosil kardani muodilahoi soddai harakati sistemaro ifodakunanda va baroi tadqiqi khosiyathoi umumii in harakatho istifoda meshavand. Prinsipihoi variatsionii mekhanikaro bad az chande umumigardoni dar mekhanikai muhiti yaklukht, termodinamika, elektrodinamika, nazariyai nisbiyat, me­khanikam kvanti va sohahoi digari ilm tatbiq menamoyand.

Ad.: Bukhgols N. N., Osnovnoy kurs teoreticheskoy mekhaniki, M., 1972.