Results 241 to 250 of about 2,214,711 (294)

Bulk Ferromagnetic Icosahedral Quasicrystals without Rapid Quenching. [PDF]

open access: yesJ Am Chem Soc
Tamura R   +10 more
europepmc   +1 more source

Atomic-scale quantification of hydrogen in metal hydrides by electron ptychography. [PDF]

open access: yesSci Adv
Li P   +8 more
europepmc   +1 more source

Epitaxy of ultrathin Fe<sub>3</sub>O<sub>4</sub> films on SrTiO<sub>3</sub>(001): influence of growth parameters on the formation of coexisting (111)- and (001)-oriented phases. [PDF]

open access: yesJ Appl Crystallogr
Alexander A   +10 more
europepmc   +1 more source

Fe-DCA Metal-Organic Frameworks on the Bi<sub>2</sub>Se<sub>3</sub>(0001) Topological Insulator Surface. [PDF]

open access: yesACS Omega
Kurowská A   +8 more
europepmc   +1 more source

On Isomorphisms of Lattices of Closed Subspaces

Canadian Journal of Mathematics, 1984
By a projectivityof vector spaces Xand Yover fields F and G is meant an isomorphism Ψ:(X) → (Y) of their lattices of subspaces. A basic theorem of projective geomtry [2, p. 44] asserts that, for spaces of dimension at least 3, any such projectivity is of the form Ψ(M) = SM for a bijection S:X → Y which is semi-linear in the sense that S is an additive ...
Fillmore, P. A., Longstaff, W. E.
openaire   +2 more sources

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