Capítols de llibre
http://hdl.handle.net/2117/3922
2017-01-21T10:43:33ZCompact Hausdorff group topologies for the additive group of real numbers
http://hdl.handle.net/2117/99723
Compact Hausdorff group topologies for the additive group of real numbers
Bruguera Padró, Mª Montserrat; Martín-Peinador, Elena
This volume contains the contributions presented by several colleagues as a tribute
to the mathematical and human qualities of Jos e Mar a Montesinos Amilibia on the
occasion of his seventieth birthday. The editors would like to express their thanks
to the contributors and their very especial gratitude to Jos e Mar a for his example
through many years of scienti c and personal contact; We deal with an example of a topology for the additive group of real numbers
R, which makes it a compact Hausdor topological group. Further, (R; ) is
connected, but neither arcwise connected, nor locally connected. Thus, it is nei-
ther a Lie group, nor a curve in the sense of H. Mazurkiewicz. The contribution
of this short note is to provide an elementary proof of the fact that it is not
arcwise connected.
2017-01-19T16:53:30ZBruguera Padró, Mª MontserratMartín-Peinador, ElenaThis volume contains the contributions presented by several colleagues as a tribute
to the mathematical and human qualities of Jos e Mar a Montesinos Amilibia on the
occasion of his seventieth birthday. The editors would like to express their thanks
to the contributors and their very especial gratitude to Jos e Mar a for his example
through many years of scienti c and personal contact
We deal with an example of a topology for the additive group of real numbers
R, which makes it a compact Hausdor topological group. Further, (R; ) is
connected, but neither arcwise connected, nor locally connected. Thus, it is nei-
ther a Lie group, nor a curve in the sense of H. Mazurkiewicz. The contribution
of this short note is to provide an elementary proof of the fact that it is not
arcwise connected.“Les matemàtiques i l’enginyeria a la Barcelona del set-cents: les bases de la nova professionalització dels tècnics
http://hdl.handle.net/2117/98200
“Les matemàtiques i l’enginyeria a la Barcelona del set-cents: les bases de la nova professionalització dels tècnics
Roca Rosell, Antoni Maria Claret
2016-12-14T10:59:58ZRoca Rosell, Antoni Maria ClaretEffects of thermoregulation on human sleep patterns: A mathematical model of sleep-wake cycles with REM-NREM subcircuit
http://hdl.handle.net/2117/90841
Effects of thermoregulation on human sleep patterns: A mathematical model of sleep-wake cycles with REM-NREM subcircuit
Bañuelos, Selenne; Best, Janet; Huguet Casades, Gemma; Prieto-Langarica, Alicia; Pyzza, Pamela; Schmidt, Markus; Wilson, Shelby
In this paper we construct a mathematical model of human sleep/wake regulation with thermoregulation and temperature e ects. Simulations of this model show features previously presented in experimental data such as elongation of duration and number of REM bouts across the night as well as the appearance of awakenings due to deviations in body temperature from thermoneutrality. This model helps to demonstrate the importance of temperature in the sleep cycle. Further modi cations of the model to include more temperature e ects on other aspects of sleep regulation such as sleep and REM latency are discussed
2016-10-18T10:52:04ZBañuelos, SelenneBest, JanetHuguet Casades, GemmaPrieto-Langarica, AliciaPyzza, PamelaSchmidt, MarkusWilson, ShelbyIn this paper we construct a mathematical model of human sleep/wake regulation with thermoregulation and temperature e ects. Simulations of this model show features previously presented in experimental data such as elongation of duration and number of REM bouts across the night as well as the appearance of awakenings due to deviations in body temperature from thermoneutrality. This model helps to demonstrate the importance of temperature in the sleep cycle. Further modi cations of the model to include more temperature e ects on other aspects of sleep regulation such as sleep and REM latency are discussedIsometries of the hamming space and equivalence relations of linear codes over a finite field
http://hdl.handle.net/2117/89879
Isometries of the hamming space and equivalence relations of linear codes over a finite field
García Planas, María Isabel; Magret Planas, Maria dels Dolors
Detection and error capabilities are preserved when applying to a linear
code an isomorphism which preserves Hamming distance. We study
here two such isomorphisms: permutation isometries and monomial
isometries
2016-09-13T12:03:34ZGarcía Planas, María IsabelMagret Planas, Maria dels DolorsDetection and error capabilities are preserved when applying to a linear
code an isomorphism which preserves Hamming distance. We study
here two such isomorphisms: permutation isometries and monomial
isometriesPrólogo. Ciencia, doctrina, creencias y profesionalización
http://hdl.handle.net/2117/89873
Prólogo. Ciencia, doctrina, creencias y profesionalización
Roca Rosell, Antoni Maria Claret
2016-09-13T11:02:34ZRoca Rosell, Antoni Maria ClaretMatemáticas y redes
http://hdl.handle.net/2117/86867
Matemáticas y redes
Rué Perna, Juan José; Zumalacárregui, Ana
2016-05-10T11:50:32ZRué Perna, Juan JoséZumalacárregui, AnaEdmund Stone y el estudio y uso de instrumentos matemáticos
http://hdl.handle.net/2117/85558
Edmund Stone y el estudio y uso de instrumentos matemáticos
Blanco Abellán, Mónica
2016-04-12T12:02:31ZBlanco Abellán, MónicaIonospheric model for radio techniques
http://hdl.handle.net/2117/84710
Ionospheric model for radio techniques
Hernández Pajares, Manuel
2016-03-18T14:12:03ZHernández Pajares, ManuelScience and technology in world exhibitions
http://hdl.handle.net/2117/82816
Science and technology in world exhibitions
Roca Rosell, Antoni Maria Claret
2016-02-11T09:21:30ZRoca Rosell, Antoni Maria ClaretStabbing segments with rectilinear objects
http://hdl.handle.net/2117/82298
Stabbing segments with rectilinear objects
Claverol Aguas, Mercè; Garijo, Delia; Korman, Matias; Seara Ojea, Carlos; Silveira, Rodrigo Ignacio
We consider stabbing regions for a set S of n line segments in the plane, that is, regions in the plane that contain exactly one endpoint of each segment of S. Concretely, we provide efficient algorithms for reporting all combinatorially different stabbing regions for S for regions that can be described as the intersection of axis-parallel halfplanes; these are halfplanes, strips, quadrants, 3-sided rectangles, and rectangles. The running times are O(n) (for the halfplane case), O(n log n) (for strips, quadrants, and 3-sided rectangles), and O(n2 log n) (for rectangles).
2016-01-29T18:03:01ZClaverol Aguas, MercèGarijo, DeliaKorman, MatiasSeara Ojea, CarlosSilveira, Rodrigo IgnacioWe consider stabbing regions for a set S of n line segments in the plane, that is, regions in the plane that contain exactly one endpoint of each segment of S. Concretely, we provide efficient algorithms for reporting all combinatorially different stabbing regions for S for regions that can be described as the intersection of axis-parallel halfplanes; these are halfplanes, strips, quadrants, 3-sided rectangles, and rectangles. The running times are O(n) (for the halfplane case), O(n log n) (for strips, quadrants, and 3-sided rectangles), and O(n2 log n) (for rectangles).