Resultats globals: 7 registres trobats en 0.02 segons.
Articles, 5 registres trobats
Documents de recerca, 2 registres trobats
Articles 5 registres trobats  
1.
22 p, 1.2 MB Kernels and ranks of cyclic and negacyclic quaternary codes / Dougherty, Steven T. (University of Scranton. Department of Mathematics) ; Fernández Córdoba, Cristina (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions)
We study the rank and kernel of Z4 cyclic codes of odd length n and give bounds on the size of the kernel and the rank. Given that a cyclic code of odd length is of the form C = <fh, 2fg> , where fgh = x^n − 1, we show that <2f> ⊆ K(C) ⊆ C and C ⊆ R(C) ⊆ <fh, 2g> where K(C) is the preimage of the binary kernel and R(C) is the preimage of the space generated by the image of C. [...]
2016 - 10.1007/s10623-015-0163-6
Designs codes and cryptography, Vol. 81, Issue 2 (Nov. 2016) , p. 347-364  
2.
8 p, 1010.8 KB Ranks and kernels of codes from generalized Hadamard matrices / Dougherty, Steven T. (University of Scranton. Department of Mathematics) ; Rifà i Coma, Josep (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions) ; Villanueva, M. (Mercè) (Universitat Autònoma de Barcelona. Departament d'Enginyeria de la Informació i de les Comunicacions)
The ranks and kernels of generalized Hadamard matrices are studied. It is proved that any generalized Hadamard matrix H(q, λ) over Fq , q > 3, or q = 3 and gcd(3, λ) ≠ 1, generates a self-orthogonal code. [...]
2016 - 10.1109/TIT.2015.2509061
IEEE transactions on information theory, Vol. 62 No. 2 (Feb. 2016) , p. 687-694  
3.
12 p, 2.6 MB A Performance Evaluation of Exact and Approximate Match Kernels for Object Recognition / Caputo, Barbara (Idiap Research Institute (Martigny, Suïssa)) ; Jie, Luo (Idiap Research Institute (Martigny, Suïssa))
Local features have repeatedly shown their effectiveness for object recognition during the last years, and they have consequently become the preferred descriptor for this type of problems. The solution of the correspondence problem is traditionally approached with exact or approximate techniques. [...]
2009 - 10.5565/rev/elcvia.350
ELCVIA : Electronic Letters on Computer Vision and Image Analysis, Vol. 8, Núm. 3 ( 2009) , p. 15-26  
4.
36 p, 271.2 KB L2 boundedness of the Cauchy transform implies L2 boundedness of all Carlderón-Zygmund operators associated to odd kernels / Tolsa Domènech, Xavier (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
Let µ be a Radon measure on C without atoms. In this paper we prove that if the Cauchy transform is bounded in L2 (µ), then all 1-dimensional Calder´on-Zygmund operators associated to odd and sufficiently smooth kernels are also bounded in L2 (µ).
2004 - 10.5565/PUBLMAT_48204_09
Publicacions matematiques, V. 48 N. 2 (2004) , p. 445-479  
5.
10 p, 119.5 KB The Riesz kernels do not give rise to higher dimensional analogues of the Menger-Melnikov curvature / Farag, Hany M.
Ever since the discovery of the connection between the Menger-Melnikov curvature and the Cauchy kernel in the L2 norm, and its impressive utility in the analytic capacity problem, higher dimensional analogues have been coveted. [...]
1999 - 10.5565/PUBLMAT_43199_11
Publicacions matematiques, V. 43 N. 1 (1999) , p. 251-260  

Documents de recerca 2 registres trobats  
1.
26 p, 391.5 KB Hereditary completeness for systems of exponentials and reproducing kernels / Baranov, Anton ; Belov, Yurii ; Borichev, Alexander ; Centre de Recerca Matemàtica
Vegeu el resum a l'inici del document del fitxer adjunt.
Centre de Recerca Matemàtica 2011 (Prepublicacions del Centre de Recerca Matemàtica ; 1066)  
2.
39 p, 334.2 KB Calderón-Zygmund kernels and rectifiability in the plane / Chousionis, Vasilis (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Mateu Bennassar, Joan (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Prat Baiget, Laura (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Tolsa Domènech, Xavier (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Centre de Recerca Matemàtica
Vegeu el resum a l'inici del document del fitxer adjunt.
Centre de Recerca Matemàtica 2011 (Prepublicacions del Centre de Recerca Matemàtica ; 1047)  

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