<prompt> General relativity GR, inozivikanwawo se general theory of relativity kana GTR ndiyo geometric theory of gravitation yakabudiswa naAlbert Einstein muna 1915 uye tsanangudzo yemazuva ano yegiravhiti mufizikisi yemazuva ano. General relativity generalizes special relativity uye inotsiva mutemo waNewton wekukweva kwese, ichipa rondedzero yakabatana yegiravhiti sechinhu che geometric nzvimbo uye nguva, kana spacetime. Kunyanya, kukombama kwenzvimbo-nguva kunoenderana zvakananga nesimba uye simba rechinhu chero chipi zvacho uye mwaranzi iripo. Hukama hunotsanangurwa neminda Einstein equations, system ye partial differential equations.  <response>: dzidziso yejometri 