# Orthogonality in normed linear spaces: a classification of the different concepts and some open problems.

Revista Matemática de la Universidad Complutense de Madrid (1989)

- Volume: 2, Issue: SUPL., page 53-57
- ISSN: 1139-1138

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topBenítez Rodríguez, Carlos. "Orthogonality in normed linear spaces: a classification of the different concepts and some open problems.." Revista Matemática de la Universidad Complutense de Madrid 2.SUPL. (1989): 53-57. <http://eudml.org/doc/43378>.

@article{BenítezRodríguez1989,

abstract = {Orthogonality in inner products is a binary relation that can be expressed in many ways without explicit mention to the inner product of the space. Great part of such definitions have also sense in normed linear spaces. This simple observation is at the base of many concepts of orthogonality in these more general structures. Various authors introduced such concepts over the last fifty years, although the origins of some of the most interesting results that can be obtained for these generalized concepts are, as usual in Mathematics, in previous of parallel works about convex sets, ellipsis or ellipsoids, duality, etc. (see, e.g., Gruber?s paper (1987) about the prior contributions of Carathéodory, Blaschke, or Radon).},

author = {Benítez Rodríguez, Carlos},

journal = {Revista Matemática de la Universidad Complutense de Madrid},

keywords = {Espacios normados; Ortogonalidad; Orthogonality in inner product spaces; normed linear spaces},

language = {eng},

number = {SUPL.},

pages = {53-57},

title = {Orthogonality in normed linear spaces: a classification of the different concepts and some open problems.},

url = {http://eudml.org/doc/43378},

volume = {2},

year = {1989},

}

TY - JOUR

AU - Benítez Rodríguez, Carlos

TI - Orthogonality in normed linear spaces: a classification of the different concepts and some open problems.

JO - Revista Matemática de la Universidad Complutense de Madrid

PY - 1989

VL - 2

IS - SUPL.

SP - 53

EP - 57

AB - Orthogonality in inner products is a binary relation that can be expressed in many ways without explicit mention to the inner product of the space. Great part of such definitions have also sense in normed linear spaces. This simple observation is at the base of many concepts of orthogonality in these more general structures. Various authors introduced such concepts over the last fifty years, although the origins of some of the most interesting results that can be obtained for these generalized concepts are, as usual in Mathematics, in previous of parallel works about convex sets, ellipsis or ellipsoids, duality, etc. (see, e.g., Gruber?s paper (1987) about the prior contributions of Carathéodory, Blaschke, or Radon).

LA - eng

KW - Espacios normados; Ortogonalidad; Orthogonality in inner product spaces; normed linear spaces

UR - http://eudml.org/doc/43378

ER -