@article{202408.2005,
	doi = {10.20944/preprints202408.2005.v1},
	url = {https://doi.org/10.20944/preprints202408.2005.v1},
	year = 2024,
	month = {August},
	publisher = {Preprints},
	author = {Takashi Suzuki and Takuya Tsuchiya},
	title = {Hadamard’ Variational Formula for Simple Eigenvalues},
	journal = {Preprints}
}