Results 31 to 40 of about 2,085,024 (341)

Multiplicity of the saturated special fiber ring of height two perfect ideals [PDF]

open access: yes, 2019
Let $R$ be a polynomial ring and $I \subset R$ be a perfect ideal of height two minimally generated by forms of the same degree. We provide a formula for the multiplicity of the saturated special fiber ring of $I$. Interestingly, this formula is equal to
Cid-Ruiz, Yairon
core   +4 more sources

Evaluating nuclear data and their uncertainties

open access: yesEPJ Nuclear Sciences & Technologies, 2018
In the last decade or so, estimating uncertainties associated with nuclear data has become an almost mandatory step in any new nuclear data evaluation.
Talou Patrick
doaj   +1 more source

Few smooth d-polytopes with n lattice points [PDF]

open access: yes, 2013
We prove that, for fixed n there exist only finitely many embeddings of Q-factorial toric varieties X into P^n that are induced by a complete linear system.
A. Lundman   +46 more
core   +2 more sources

Towards a historical approach to physics education

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2021
Modern physics is a complex multiplicity of practices: theoretical, mathematical, experimental and simulation practices. Experimental and simulation practices are related to the pragmatic dimension of a physical theory. Mathematical practices are related
Enrico Giannetto
doaj   +1 more source

Symmetric spaces of higher rank do not admit differentiable compactifications [PDF]

open access: yes, 2009
Any nonpositively curved symmetric space admits a topological compactification, namely the Hadamard compactification. For rank one spaces, this topological compactification can be endowed with a differentiable structure such that the action of the ...
A. Borel   +9 more
core   +4 more sources

Mathematics of gravitational lensing: multiple imaging and magnification [PDF]

open access: yesGeneral Relativity and Gravitation, 2010
The mathematical theory of gravitational lensing has revealed many generic and global properties. Beginning with multiple imaging, we review Morse-theoretic image counting formulas and lower bound results, and complex-algebraic upper bounds in the case of single and multiple lens planes.
Petters, A. O., Werner, M. C.
openaire   +3 more sources

O DESENVOLVIMENTO DO PENSAMENTO PROPORCIONAL NAS ESCOLAS PAROQUIAIS LUTERANAS DO RIO GRANDE DO SUL NA PRIMEIRA METADE DO SÉCULO XX

open access: yesCadernos de Pesquisa, 2016
O artigo aborda o desenvolvimento do pensamento proporcional nas escolas paroquiais luteranas do Rio Grande do Sul na primeira metade do século XX. Em meados de 1900, o Sínodo Evangélico Luterano Alemão de Missouri, hoje Igreja Evangélica Luterana do ...
Malcus Cassiano Kuhn, Arno Bayer
doaj   +1 more source

The Fate of the Landau Levels under Perturbations of Constant Sign

open access: yes, 2009
We show that the Landau levels cease to be eigenvalues if we perturb the 2D Schr\"odinger operator with constant magnetic field, by bounded electric potentials of fixed sign.
Klopp, Frédéric, Raikov, Georgi
core   +3 more sources

Samples of geometric random variables with multiplicity constraints [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
We investigate the probability that a sample $\Gamma=(\Gamma_1,\Gamma_2,\ldots,\Gamma_n)$ of independent, identically distributed random variables with a geometric distribution has no elements occurring exactly $j$ times, where $j$ belongs to a specified
Margaret Archibald, Arnold Knopfmacher
doaj   +1 more source

Some remarks on multiplicity codes

open access: yes, 2014
Multiplicity codes are algebraic error-correcting codes generalizing classical polynomial evaluation codes, and are based on evaluating polynomials and their derivatives.
Kopparty, Swastik
core   +1 more source

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