Results 41 to 50 of about 54,181 (174)

Spanning trees of finite Sierpiński graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
We show that the number of spanning trees in the finite Sierpiński graph of level $n$ is given by $\sqrt[4]{\frac{3}{20}} (\frac{5}{3})^{-n/2} (\sqrt[4]{540})^{3^n}$.
Elmar Teufl, Stephan Wagner
doaj   +1 more source

On the Mahler measure of hyperelliptic families

open access: yes, 2017
We prove Boyd’s “unexpected coincidence” of the Mahler measures for two families of two-variate polynomials defining curves of genus 2. We further equate the same measures to the Mahler measures of polynomials y³ − y + x³ − x + kxy whose zero loci define
Bertin, M., Zudilin, W.
core   +1 more source

A priori bounds for the generalised parabolic Anderson model

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 5, Page 1315-1394, May 2026.
Abstract We show a priori bounds for solutions to (∂t−Δ)u=σ(u)ξ$(\partial _t - \Delta) u = \sigma (u) \xi$ in finite volume in the framework of Hairer's Regularity Structures [Invent Math 198:269–504, 2014]. We assume σ∈Cb2(R)$\sigma \in C_b^2 (\mathbb {R})$ and that ξ$\xi$ is of negative Hölder regularity of order −1−κ$- 1 - \kappa$ where κ<κ¯$\kappa <
Ajay Chandra   +2 more
wiley   +1 more source

Crystal structures of titanium–aluminium and –gallium complexes bearing two μ2-CH3 units

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2017
The isotypic crystal structures of two titanocene complexes containing an EMe3 unit (E = Al, Ga; Me = methyl) with two μ2-coordinating methyl groups, namely [μ-1(η5)-(adamantan-1-yl-2κC1)cycylopentadienyl]di-μ2-methyl-methyl-2κC-[1(η5 ...
Tim Oswald   +4 more
doaj   +1 more source

Two dialects for KZB equations: generating one-loop open-string integrals

open access: yesJournal of High Energy Physics, 2020
Two different constructions generating the low-energy expansion of genus-one configuration-space integrals appearing in one-loop open-string amplitudes have been put forward in refs. [1–3].
Johannes Broedel   +2 more
doaj   +1 more source

Connecting Chemical Worlds – Context-based Learning Co-developed

open access: yesCHIMIA, 2023
Chemistry as well as chemistry education often raise two different perceptions among non-experts: Chemistry (education) provides spectacular phenomena, experiments and entertainment, but is also perceived as incorporating high levels of risk and many ...
Ilka Parchmann   +5 more
doaj   +1 more source

Why Is the Peak Group Analysis So Effective for IR Spectra Analysis?

open access: yesJournal of Chemometrics, Volume 40, Issue 4, April 2026.
ABSTRACT Peak group analysis (PGA), an MCR algorithm, has proven to be very successful in extracting pure component spectra and concentration profiles from IR and Raman spectral data when investigating carbonylation reactions with transition metal catalysts.
Klaus Neymeyr   +4 more
wiley   +1 more source

Shifts with decidable language and non-computable entropy [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
Automata, Logic and ...
Peter Hertling, Christoph Spandl
doaj   +1 more source

Mathematics education research on algebra over the last two decades: quo vadis?

open access: yesFrontiers in Education, 2023
Algebra is a crucial component of mathematics education as it introduces learners to the mathematical world of modeling relationships and handling abstract quantities.
Joaquin Marc Veith   +6 more
doaj   +1 more source

Konrad Zuse und die ETH Zürich: Zum 100. Geburtstag des Informatikpioniers Konrad Zuse (22. Juni 2010) [PDF]

open access: yes, 2018
Zusammenfassung: Der deutsche Bauingenieur Konrad Zuse (1910-1995) hat 1941 die Z3 vorgeführt, den ersten frei programmierbaren und in binärer Gleitpunktrechnung arbeitenden Rechner der Welt.
Bruderer, Herbert
core  

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