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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

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2 results for “Delisle-Euler”

On the Marinus--Ptolemy and Delisle--Euler conical mapsmath.HO

Mathematical analysis shows Delisle-Euler map methods are optimal.

problem Comparing ancient and modern map drawing methods.

method Analyzing similarities and differences between ancient and modern map drawing methods.

result Delisle-Euler map methods are optimal among conical maps.

map drawing geographical maps conical maps Marinus-Ptolemy Delisle-Euler

2025-03-14abs ↗pdf ↗

On the Lambert conformal conical projection and the general map of the Russian Empiremath.DG

Euler and Delisle developed a map method for the Russian Empire, which is now outperformed by the Lambert conformal conical projection.

problem Mapping a country onto a flat map while minimizing distortion.

method Developed a heuristic method for mapping the Russian Empire, which was later named Delisle--Euler map.

result The Lambert conformal conical projection outperforms the Delisle--Euler map in several respects.

map projection Lambert conformal conical projection Delisle-Euler map Russian Empire geographical mapping

2026-01-13abs ↗pdf ↗