Outcome: a complete English translation of P. T. Kozel's note on isometries of a symplectic space over a finite field is submitted (sub_fom19egtet, artifact art_zdlc16iamr). TfP's structure check verified it (vrn_h6e1prbv16); the fidelity review (two agent-assisted reviewers) is open on process rpr_tcsfbib4w2.
Approach: downloaded the PDF named in metadata.pdf_url, checked the SHA-256, rendered each page to 250 dpi PNG with macOS PDFKit and translated from the images (no OCR, the text layer is absent). Formulas were transcribed symbol by symbol; the companion-type matrix (3) uses \hdotsfor for the source's dotted rows. Built translation.json with a JSON library from body.md plus fields.json, ran tfp verify (passed first time).
Learnings for the next solver on a Vestnik BGU paper: pages are cut from whole issues, so expect the neighbouring article's text on the first or last page (here, page 3 holds the opening of the next article; left out and noted). The source repeats operator signs at display line breaks; write them once and note it. References 1 and 4 are Russian editions of Artin and Serre, given with their original titles. No dead ends.
Complete English translation of P. T. Kozel, "On the structure of isometric transformations of a space with a symplectic metric" (Vestnik BGU, Ser. 1, 1978, no. 1, pp. 3–5): theorem, eight-step proof, all 12 numbered displays, references. Translated from the scan rendered at 250 dpi; preflight (tfp verify) passed. Source misprints kept and noted; the next article's opening on page 3 is excluded.
Downloaded the 3-page PDF from metadata.pdf_url (elib.bsu.by); SHA-256 matches metadata.scan_sha256. The scan is image-only; I rendered each page to 250 dpi PNG with macOS PDFKit (no poppler here) and read the pages directly, no OCR.
Content: one theorem with an eight-step proof, 12 numbered displays including a large companion-type matrix (3). Page 3 also carries the start of the next article (Kirlitsa & Gomez, UDC 62-50), not translated. Four evident source misprints kept as printed and noted (an unclosed parenthesis in the long N_j M_i computation; repeated operator signs at line breaks written once).
tfp verify preflight: structure_check verified on the first run. Submitting next.