Edmond Laguerre Created 2026-10-18 Updated 2026-10-24
Figure 1.
Portrait of Edmond Laguerre
. Unknown artist; nineteenth-century portrait of Edmond Laguerre; current version uploaded by Ssola. Public domain asserted by Commons in origin and life-plus-70 jurisdictions. Source usage terms, via Wikimedia Commons. Source.
Ernesto Cesàro Created 2026-10-13 Updated 2026-10-31
Figure 1.
Portrait of Ernesto Cesàro
. Historical photograph by an unknown photographer, originally reproduced by MacTutor. Listed as public domain by Wikimedia Commons. Source.
Euclid 2026-10-14
Figure 1.
Portrait of Euclid
. Later imagined depiction dated 1584, identified on Wikimedia Commons. This is not an authentic likeness from antiquity; Commons identifies the artwork as public domain. Source.
Évariste Galois 2026-10-24
Figure 1.
Portrait of Évariste Galois
. Unknown artist; reproduced in Galois, Œuvres mathématiques, Gauthier-Villars (1897), p. 18. Public domain (PD-old, as declared on Commons). Source and usage information on the linked Wikimedia file page. Source.
Ferdinand Georg Frobenius Created 2026-10-18 Updated 2026-10-24
Figure 1. . Carl Günther (1827–1912). Public domain (as designated on Commons). Source and usage information on the linked Wikimedia file page. Source.
George Gabriel Stokes Created 2026-10-18 Updated 2026-10-31
Figure 1. . Swan Electric Engraving Co., as credited by the File; Archivio storico dell’Accademia delle Scienze di Torino, catalog 0155, accession IST. 4.1.3. 2. Commons claims origin/life-plus-100-or-shorter public domain and pre-1931 United States publication. Source usage terms, via Wikimedia Commons. Source.
George Green (mathematician) Created 2026-10-18 Updated 2026-10-31
Figure 1.
Title page of George Green's 1828 essay on electricity and magnetism
. Public-domain historical title page hosted by Wikimedia Commons. No contemporary portrait of George Green is known. [ref] Source.
Gerald Teschl Created 2026-10-14 Updated 2026-10-24
Figure 1.
Portrait of Gerald Teschl
. Portrait identified on the TU Wien viennaPDE profile.
Helmut Hasse 2026-10-24
A mathematician specializing in algebraic number theory. The Hasse diagram is named after him.[ref][ref]
Figure 1. . Oberwolfach Photo Collection, photograph by Konrad Jacobs, via Wikimedia Commons. CC BY-SA 2.0 Germany. The linked file page identifies the sitter and the photographer. Source.