He showed Luzin his solution to the problem that Luzin had just posed and before the end of 1914 the two had begun a firm mathematical friendship.
Siya ay nagpakita Luzin kanyang solusyon sa problema na Luzin had lamang posed at bago ang katapusan ng 1914 ang dalawang ay sinimulan ng isang matatag matematiko pagkakaibigan.