@article{202103.0391, doi = {10.20944/preprints202103.0391.v1}, url = {https://doi.org/10.20944/preprints202103.0391.v1}, year = 2021, month = {March}, publisher = {Preprints}, author = {Jae-Kwang Hwang}, title = {Origins of Stellar Mass Neutron Black Holes, Supermassive Dark Matter Black Holes and Universe Evolution}, journal = {Preprints} }