Schramm (1992); Sachs (1994). Schramm states that the existence of an equivalent polyhedron with a midsphere was claimed by Koebe (1936), but that Koebe only proved this result for polyhedra with triangular faces. Schramm credits the full result to William Thurston, but the relevant portion of Thurston's lecture notes [1]Արխիվացված 2021-01-21 Wayback Machine again only states the result explicitly for triangulated polyhedra. Schramm, Oded (1992), «How to cage an egg»(PDF), Inventiones Mathematicae, 107 (3): 543–560, Bibcode:1992InMat.107..543S, doi:10.1007/BF01231901, MR1150601, Արխիվացված է օրիգինալից(PDF) 2012-03-22-ին, Վերցված է 2019-04-14-ին. Sachs, Horst (1994), «Coin graphs, polyhedra, and conformal mapping», Discrete Mathematics, 134 (1–3): 133–138, doi:10.1016/0012-365X(93)E0068-F, MR1303402. Koebe, Paul (1936), «Kontaktprobleme der Konformen Abbildung», Ber. Sächs. Akad. Wiss. Leipzig, Math.-Phys. Kl., 88: 141–164.
Schramm (1992); Sachs (1994). Schramm states that the existence of an equivalent polyhedron with a midsphere was claimed by Koebe (1936), but that Koebe only proved this result for polyhedra with triangular faces. Schramm credits the full result to William Thurston, but the relevant portion of Thurston's lecture notes [1]Արխիվացված 2021-01-21 Wayback Machine again only states the result explicitly for triangulated polyhedra. Schramm, Oded (1992), «How to cage an egg»(PDF), Inventiones Mathematicae, 107 (3): 543–560, Bibcode:1992InMat.107..543S, doi:10.1007/BF01231901, MR1150601, Արխիվացված է օրիգինալից(PDF) 2012-03-22-ին, Վերցված է 2019-04-14-ին. Sachs, Horst (1994), «Coin graphs, polyhedra, and conformal mapping», Discrete Mathematics, 134 (1–3): 133–138, doi:10.1016/0012-365X(93)E0068-F, MR1303402. Koebe, Paul (1936), «Kontaktprobleme der Konformen Abbildung», Ber. Sächs. Akad. Wiss. Leipzig, Math.-Phys. Kl., 88: 141–164.
Schramm (1992); Sachs (1994). Schramm states that the existence of an equivalent polyhedron with a midsphere was claimed by Koebe (1936), but that Koebe only proved this result for polyhedra with triangular faces. Schramm credits the full result to William Thurston, but the relevant portion of Thurston's lecture notes [1]Արխիվացված 2021-01-21 Wayback Machine again only states the result explicitly for triangulated polyhedra. Schramm, Oded (1992), «How to cage an egg»(PDF), Inventiones Mathematicae, 107 (3): 543–560, Bibcode:1992InMat.107..543S, doi:10.1007/BF01231901, MR1150601, Արխիվացված է օրիգինալից(PDF) 2012-03-22-ին, Վերցված է 2019-04-14-ին. Sachs, Horst (1994), «Coin graphs, polyhedra, and conformal mapping», Discrete Mathematics, 134 (1–3): 133–138, doi:10.1016/0012-365X(93)E0068-F, MR1303402. Koebe, Paul (1936), «Kontaktprobleme der Konformen Abbildung», Ber. Sächs. Akad. Wiss. Leipzig, Math.-Phys. Kl., 88: 141–164.
Schramm (1992); Sachs (1994). Schramm states that the existence of an equivalent polyhedron with a midsphere was claimed by Koebe (1936), but that Koebe only proved this result for polyhedra with triangular faces. Schramm credits the full result to William Thurston, but the relevant portion of Thurston's lecture notes [1]Արխիվացված 2021-01-21 Wayback Machine again only states the result explicitly for triangulated polyhedra. Schramm, Oded (1992), «How to cage an egg»(PDF), Inventiones Mathematicae, 107 (3): 543–560, Bibcode:1992InMat.107..543S, doi:10.1007/BF01231901, MR1150601, Արխիվացված է օրիգինալից(PDF) 2012-03-22-ին, Վերցված է 2019-04-14-ին. Sachs, Horst (1994), «Coin graphs, polyhedra, and conformal mapping», Discrete Mathematics, 134 (1–3): 133–138, doi:10.1016/0012-365X(93)E0068-F, MR1303402. Koebe, Paul (1936), «Kontaktprobleme der Konformen Abbildung», Ber. Sächs. Akad. Wiss. Leipzig, Math.-Phys. Kl., 88: 141–164.
Schramm (1992); Sachs (1994). Schramm states that the existence of an equivalent polyhedron with a midsphere was claimed by Koebe (1936), but that Koebe only proved this result for polyhedra with triangular faces. Schramm credits the full result to William Thurston, but the relevant portion of Thurston's lecture notes [1]Արխիվացված 2021-01-21 Wayback Machine again only states the result explicitly for triangulated polyhedra. Schramm, Oded (1992), «How to cage an egg»(PDF), Inventiones Mathematicae, 107 (3): 543–560, Bibcode:1992InMat.107..543S, doi:10.1007/BF01231901, MR1150601, Արխիվացված է օրիգինալից(PDF) 2012-03-22-ին, Վերցված է 2019-04-14-ին. Sachs, Horst (1994), «Coin graphs, polyhedra, and conformal mapping», Discrete Mathematics, 134 (1–3): 133–138, doi:10.1016/0012-365X(93)E0068-F, MR1303402. Koebe, Paul (1936), «Kontaktprobleme der Konformen Abbildung», Ber. Sächs. Akad. Wiss. Leipzig, Math.-Phys. Kl., 88: 141–164.
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Schramm (1992); Sachs (1994). Schramm states that the existence of an equivalent polyhedron with a midsphere was claimed by Koebe (1936), but that Koebe only proved this result for polyhedra with triangular faces. Schramm credits the full result to William Thurston, but the relevant portion of Thurston's lecture notes [1]Արխիվացված 2021-01-21 Wayback Machine again only states the result explicitly for triangulated polyhedra. Schramm, Oded (1992), «How to cage an egg»(PDF), Inventiones Mathematicae, 107 (3): 543–560, Bibcode:1992InMat.107..543S, doi:10.1007/BF01231901, MR1150601, Արխիվացված է օրիգինալից(PDF) 2012-03-22-ին, Վերցված է 2019-04-14-ին. Sachs, Horst (1994), «Coin graphs, polyhedra, and conformal mapping», Discrete Mathematics, 134 (1–3): 133–138, doi:10.1016/0012-365X(93)E0068-F, MR1303402. Koebe, Paul (1936), «Kontaktprobleme der Konformen Abbildung», Ber. Sächs. Akad. Wiss. Leipzig, Math.-Phys. Kl., 88: 141–164.