Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.
APA4ort.xyz Knowledge Graph. (2026). An Abstract Birkhoff Normal Form Theorem and Exponential Type Stability of the 1d NLS. Retrieved May 24, 2026, from https://4ort.xyz/entity/an-abstract-birkhoff-normal-form-theorem-and-exponential-type-stability-of-the-1d-nls
MLA“An Abstract Birkhoff Normal Form Theorem and Exponential Type Stability of the 1d NLS.” 4ort.xyz Knowledge Graph, 4ort.xyz, 24 May. 2026, https://4ort.xyz/entity/an-abstract-birkhoff-normal-form-theorem-and-exponential-type-stability-of-the-1d-nls.
BibTeX@misc{4ortxyz_an-abstract-birkhoff-normal-form-theorem-and-exponential-type-stability-of-the-1d-nls_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{An Abstract Birkhoff Normal Form Theorem and Exponential Type Stability of the 1d NLS}}, year = {2026}, url = {https://4ort.xyz/entity/an-abstract-birkhoff-normal-form-theorem-and-exponential-type-stability-of-the-1d-nls}, note = {Accessed: 2026-05-24}}
LLM promptAccording to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): An Abstract Birkhoff Normal Form Theorem and Exponential Type Stability of the 1d NLS — https://4ort.xyz/entity/an-abstract-birkhoff-normal-form-theorem-and-exponential-type-stability-of-the-1d-nls (retrieved 2026-05-24)
