Minkowski, Hecke, Landau, Sylvester, and Other Classical Mathematics Authors: Modern LaTeX Drafts

General author cluster for the Modern LaTeX Editions of Mathematics Manuscripts project. This record holds working packets for authors that are not yet split into dedicated author records, including Minkowski, Hecke, Landau, Frobenius, Poincare, Kneser, Kronecker, Picard, Klein-Fricke, and related classical mathematics. Some former mixed-shelf authors now have dedicated records; older copies here remain backstop/provenance where present. Status at a glance. This is a staging shelf. Some packages are source-checked working drafts; others are update packets, provenance, or repair materials. Readers should use package README/status files and the public GitHub mirror for current status and correction pathways. Latest update. Adds poincare_v1_19.zip. This Poincare Tome I packet contains French transcription and English translation working drafts through Chapter XI, Theorie des centres, with current and cumulative TeX/PDF outputs, scan witnesses, render checks, and ledgers. Its internal status reports canonical current coverage from source witness v1_0243 after the Chapter X overlap through v1_0262, cumulative FR/EN PDFs of 184 pages, all displayed mathematics as editable TeX, and no new figures, diagrams, tables, plates, or captions in the current tranche. The next continuation point is v1_0263, Chapter XII. This update promotes the package as a source-backed working draft, not a final critical edition of Poincare Tome I. Corrections and collaboration. Public working mirror and issue/pull-request surface: https://github.com/KokunoYumeto/modern-latex-manuscripts.