Results 31 to 40 of about 2,566 (295)
Conic geometric programming [PDF]
2014 48th Annual Conference on Information Sciences and Systems (CISS), 2014 We introduce and study conic geometric programs (CGPs), which are convex optimization problems that unify geometric programs (GPs) and conic optimization problems such as semidefinite programs (SDPs). A CGP consists of a linear objective function that is to be minimized subject to affine constraints, convex conic constraints, and upper bound ...
Chandrasekaran, Venkat, Shah, Parikshit
openaire +3 more sources
Groups and monoids of Pythagorean triples connected to conics
Open Mathematics, 2017 We define operations that give the set of all Pythagorean triples a structure of commutative monoid. In particular, we define these operations by using injections between integer triples and 3 × 3 matrices.
Murru Nadir +3 more
doaj +1 more source
, 1926 Readers of the article in the October Magazine on “Systems of Conics satisfying four conditions” would notice the important part played by degenerate conics. A little more explanation of these degenerate conics may not be out of place.
J. J. Milne
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APPLICATION OF DANDELIN’S THEOREM TO DRAWING CIRCLES IN PARALLEL PERSPECTIVE
Journal of Industrial Design and Engineering Graphics, 2017 The paper analyses a problem of great theoretical importance in practice of perspective: the nature of the perspective of a circle from the horizontal plane according to the relative position between the spectator plane (parallel to the picture plane ...
Daniel Dobre
doaj +4 more sources
A statistical study of field-aligned electron beams associated with ion conics events [PDF]
Annales Geophysicae, 1998 A statistical study of field-aligned electron beams associated with upflowing ion conics is presented from Exos-D (Akebono) observations below 10 000 km.
W. Miyake, T. Mukai, N. Kaya
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Lietuvos Matematikos Rinkinys, 2004 In the paper the Pell conics method for factoring integers, based on observations of Lemmermeyer [2, 3], is presented explicitly. Moreover, a similar algorithm for factoring polynomials over finite fields is given.
Rasa Šleževičienė
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Conics Inscribed in a Standard Triangle in the Isotropic Plane
MathematicsIn this paper, we study conics inscribed in a standard triangle in the isotropic plane. Our research gives the conditions under which the inscribed conic is an ellipse, a parabola, or a hyperbola, expressed through the elements of a standard triangle. We
Vladimir Volenec, Ružica Kolar-Šuper
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Conics meeting eight lines over perfect fields
, 2023 Over the complex numbers, there are 92 plane conics meeting 8 general lines in projective 3-space. Using the Euler class and local degree from motivic homotopy theory, we give an enriched version of this result over any perfect field.
McKean, Stephen +3 more
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FEBS Letters, EarlyView.This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva +5 more
wiley +1 more source
Molecular Oncology, EarlyView.Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen +11 more
wiley +1 more source