Experimenting with Apéry Limits and WZ pairs
نویسندگان
چکیده
This article, dedicated with admiration in memory of Jon and Peter Borwein,illustrates by example, the power experimental mathematics, so dear to them both, experimenting so-called Apéry limits WZ pairs. In particular we prove a weaker form an intriguing conjecture Marc Chamberland Armin Straub (in article Borwein), generate lots new limits. We also rediscovered infinite family cubic irrationalities, that suggested very good effective irrationalitymeasures (lower than Liouville's generic 3), conjectured go down optimal 2. As it turned out, as pointed out Paul Voutier (see postscript kindly written him), our conjectures follow from deep results number theory. Nevertheless believe further experiments Maple programs would lead interesting results.
منابع مشابه
q-Apery Irrationality Proofs by q-WZ Pairs
w x Ž . In 1948, Paul Erdos E1 proved the irrationality of h 1 . Recently, ̋ 2 w x Peter Borwein used Pade approximation techniques B1 and some coḿ w x Ž . plex analysis methods B2 to prove the irrationality of both h 1 and q Ž . Ln 2 . Here we present a proof in the spirit of Apery’s magnificent proof ́ q Ž . w x of the irrationality of z 3 A , which was later delightfully accounted by w x Alf v...
متن کاملLimits of Stable Pairs
Let (X0, B0) be the canonical limit of a one-parameter family of stable pairs, provided by the log Minimal Model Program. We prove that X0 is S2 and that ⌊B0⌋ is S1, as an application of a general local statement: if (X,B+ ǫD) is log canonical and D is Q-Cartier then D is S2 and ⌊B⌋ ∩D is S1, i.e. has no embedded components. When B has coefficients < 1, examples due to Hacking and Hassett show ...
متن کاملCatalan and Apéry numbers in residue classes
We estimate character sums with Catalan numbers and middle binomial coefficients modulo a prime p. We use this bound to show that the first at most p13/2(log p)6 elements of each sequence already fall in all residue classes modulo every sufficiently large p, which improves the previously known result requiring pO(p) elements. We also study, using a different technique, similar questions for seq...
متن کاملExperimenting with eXtreme Design
Ontology Design Patterns (ODPs) support reusability and use of best practices in ontology engineering. Previous studies have shown that Content ODPs, in particular, have some measurable beneficial effects on the produced ontologies. However, another conclusion was that methodology and tool support was needed. Now such support exist, in the form of the XD methodology and the XD Tools. In this pa...
متن کاملeskimo: EXPERIMENTING WITH SKELETONS
We discuss the lack of expressivity in some skeleton-based parallel programming frameworks. The problem is further exacerbated when approaching irregular problems and dealing with dynamic data structures. Shared memory programming has been argued to have substantial ease of programming advantages for this class of problems. We present the eskimo library which represents an attempt to merge the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Maple transactions
سال: 2021
ISSN: ['2564-3029']
DOI: https://doi.org/10.5206/mt.v1i2.14359