Results 31 to 40 of about 103 (99)

On the degrees of permutability of subregular varieties [PDF]

, 1997
summary:An algebra ${\mathcal A}= (A,F)$ is subregular alias regular with respect to a unary term function $g$ if for each $\Theta , \Phi \in \text{Con}\,{\mathcal A}$ we have $\Theta = \Phi $ whenever $[g(a)]_{\Theta } = [g(a)]_{\Phi }$ for each $a\in A$
Raftery, James G., Ivan Chajda, Barbour, Graham D., Chajda, Ivan, James G. Raftery, Graham D. Barbour   +5 more
core   +1 more source

Emerging Heterogeneous Catalysis for Valorization of Biomass‐Derived Platform Molecules: The Systematic Review Toward Sustainable Biorefinery Applications

Advanced Energy and Sustainability Research, Volume 7, Issue 2, February 2026.
Recent advances in heterogeneous catalysis for biomass valorization are highlighted, focusing on furfural, hydroxymethylfurfural (HMF), levulinic acid and glycerol conversion into fuels and chemicals. Metal oxides, zeolites, metal–organic frameworks (MOFs), porous organic polymers (POPs), carbons, and supported metals are compared, emphasizing acid ...
Pratikkumar Lakhani, Atthapon Srifa
wiley   +1 more source

Modular forms for the even unimodular lattice of signature (2,10)

, 2007
We consider the principal congruence subgroup Γ [ 2 ] \Gamma [2] of level two inside the orthogonal group of an even and unimodular lattice of signature ( 2 , 10 )
Riccardo Manni, Eberhard Freitag, SALVATI MANNI, Riccardo, FREITAG E   +3 more
core   +1 more source

Heat Capacity Measurements and Thermodynamic Assessment of the Y2O3–Ta2O5 System

Journal of the American Ceramic Society, Volume 109, Issue 2, February 2026.
ABSTRACT Phase equilibria in the Y2O3–Ta2O5 system play an important role in the development of new materials for thermal barrier coating (TBC) applications, with higher thermal stability resulting in more efficient gas turbines with reduced exhaust gas emissions.
M. Löffler, D. A. de Abreu, A. Habermann, M. Lepple, O. Fabrichnaya   +4 more
wiley   +1 more source

Phase equilibria in the Li2O‒MnOx system

Journal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
Abstract Phase equilibria in the Li2O‒MnOx system was experimentally investigated under air condition and inert atmosphere (Ar). The experimental investigations for selected compositions of isothermally heat‐treated samples were performed using X‐ray diffraction and scanning electron microscopy/energy dispersive X‐ray spectroscopy. Differential thermal
Danilo Alencar de Abreu, Alena Schnickmann, Thomas Schirmer, Olga Fabrichnaya   +3 more
wiley   +1 more source

The modular automorphisms of quotient modular curves

Mathematika, Volume 72, Issue 1, January 2026.
Abstract We obtain the modular automorphism group of any quotient modular curve of level N$N$, with 4,9∤N$4,9\nmid N$. In particular, we obtain some unexpected automorphisms of order 3 that appear for the quotient modular curves when the Atkin–Lehner involution w25$w_{25}$ belongs to the quotient modular group. We also prove that such automorphisms are
Francesc Bars, Tarun Dalal
wiley   +1 more source

A note on local formulae for the parity of Selmer ranks

Bulletin of the London Mathematical Society, Volume 57, Issue 10, Page 3112-3132, October 2025.
Abstract In this note, we provide evidence for a certain ‘twisted’ version of the parity conjecture for Jacobians, introduced in prior work of Dokchitser, Green, Konstantinou and the author. To do this, we use arithmetic duality theorems for abelian varieties to study the determinant of certain endomorphisms acting on p∞$p^\infty$‐Selmer groups.
Adam Morgan
wiley   +1 more source

Ideals of Lattice Ordered Monoid

, 2017
In this project the notion of an ideal of a lattice ordered monoid A is introduced. The notion of congruence relations on a lattice ordered monoid (l-monoid) A is also introduced and its relation with ideals of A is investigated.
Alemu, Baye
core  

Geometric realizations of the s‐weak order and its lattice quotients

Journal of the London Mathematical Society, Volume 112, Issue 3, September 2025.
Abstract For an n$n$‐tuple s${\bm{s}}$ of nonnegative integers, the s${\bm{s}}$‐weak order is a lattice structure on s${\bm{s}}$‐trees, generalizing the weak order on permutations. We first describe the join irreducible elements, the canonical join representations, and the forcing order of the s${\bm{s}}$‐weak order in terms of combinatorial objects ...
Eva Philippe, Vincent Pilaud
wiley   +1 more source

Ti3C2Tx MXene‐Zirconium Diboride Based Ultra‐High Temperature Ceramics

Advanced Science, Volume 12, Issue 23, June 20, 2025.
This study demonstrates the effectiveness of Ti3C2Tx MXenes as additives in ultra‐high‐temperature ceramics (ZrB₂), enhancing densification, reducing oxygen content, and improving mechanical properties. Through surfactant‐free electrostatic self‐assembly and spark plasma sintering, MXenes enabled the formation of a core–shell microstructure, resulting ...
Srinivasa Kartik Nemani, Nicola Gilli, Steven Goldy, Ankit Kumar, Yooran Im, Austin J. Vorhees, Brian C. Wyatt, Nithin Chandran BS, Nikhilesh Chawla, Garritt J. Tucker, Laura Silvestroni, Babak Anasori   +11 more
wiley   +1 more source