188,862 research outputs found
Social costs today: institutional analyses of the present crises. An introduction
No full textThis book deals with the causes of the present crises but it claims that causes and policy implications cannot be properly assessed by focusing on allocative efficiency or income growth alone; it contends that a more general approach is called for, based on social costs. It does not deal with social costs according to the Pigouvian or the Coasian traditions. It draws on the work of Original Institutional Economics (OIE) such as Thorstein Veblen, Karl William Kapp and Karl Polanyi, on post-Keynesians such as Hyman Minsky and, in general, on authors who have provided insights beyond the conventional wisdom of economic thought
Minimizing the condition number of a positive definite matrix by completion
No full textElsner L, He C, Mehrmann V. Minimizing the condition number of a positive definite matrix by completion. Numerische Mathematik. 1994;69(1):17-23.We consider the problem of minimizing the spectral condition number of a positive definite matrix by completion: [GRAPHICS] where A is an n x n Hermitian positive definite matrix, B a p x n matrix and X is a free p x p Hermitian matrix. We reduce this problem to an optimization problem for a convex function in one variable. Using the minimal solution of this problem we characterize the complete set of matrices that give the minimum condition number
Block P-matrices
No full textElsner L, Szulc T. Block P-matrices. Linear and Multilinear Algebra. 1998;44(1):1-12
A remark on simultaneous inclusions of the zeros of a polynomial by Gershgorin's theorem
No full textElsner L. A remark on simultaneous inclusions of the zeros of a polynomial by Gershgorin's theorem. Numerische Mathematik. 1973;21(5):425-427.By using Gershgorin's theorem and the theorems on minimal Gershgorin disks a posteriori error bounds for the zeros of a polynomial are deduced, from which the bounds given in [1] by Braess and Hadeler are easily obtained
Eulamprotes gemerensis Elsner, sp. nov.
No full textEulamprotes gemerensis Elsner sp. nov. Examined material. Holotype. ♂. “ Slovakia centr., Muráň-hrad, 5.– 7.vii. 2003, M. Petrů lgt.” genitalia slide “GU 13 / 1344 ♂ P. Huemer” (TLMF). Paratypes. Slovakia: 1 ♂, NP (National park) Slovenský kras, Plešivec, Ďulová, 415 m, 10.viii. 2010, (barcode id TLMF Lep 05167), G. Elsner lgt. (TLMF); 1 ♂, Slovenský kras, Plešivec, Ďulová, 441 m, 8.vii. 2011, (barcode id TLMF Lep 05168) G. Elsner lgt. (RCGE); 1 ♂, Slovenský kras, Plešivec, Ďulová, 455 m, 26.vii. 2012, G. Elsner lgt., gen.prep.GE/ 2842 (RCGE); 1 ♂, Slovenský kras, Plešivec, Ďulová, 450 m, 8.viii. 2008, J. Liška lgt. (RCJL); 1 ♂, Slovenský kras, Plešivec, Ďulová, 450 m, 19.vi. 2009, J. Liška lgt. (RCJL); 1 ♂, Slovenský kras, Plešivec, Ďulová, 450 m, 10.viii. 2010, J. Liška lgt. (RCJL); 1 ♂, Slovenský kras, Plešivec, Ďulová, 450 m, 19.vi. 2009, J. Liška lgt. (RCJL); 1 ♂, Slovakia centr., Muránska planina, Muráň-Šiance, 920 m, 16.– 19.vi. 2004, J. Liška lgt. (RCJL); 2 ♂, Slov. kras, Vidová, 27.vi. 2001, leg. Tokár [one specimen without abdomen] (RCZT); 1 ♂, Slov. kras, Vidová, 26.v. 2000, leg. Tokár, gen. prep. GE/ 1542, (barcode id TLMF Lep 05170) (ZMUC). DESCRIPTION.—Adult (Fig. 21). Male. Wingspan 10.5–11.5 mm. Segment 2 of labial palpus blackish brown; segment 3 light greyish except for the black frontal edge. Basal half of antenna black, apical part greyish white, several segments in middle ringed black and greyish white. Head, thorax and tegula black, frons slightly lighter. Forewing black with silvery white markings: oblique block from 1 / 6 reaching almost to fold; broken fascia from middle of costa (but not reaching costa) two-thirds towards dorsum; pre-apical costal spot not connected with more inwards placed tornal spot; termen with some silvery white scales; cilia blackish grey, whitish grey at tip of apex. Hindwing about as broad as forewing, grey. Abdomen dark brown above, paler on underside, terminal brush of longitudinal scales white. Female. Unknown. Variation. The central fascia is more or less divided into two bright spots. Male genitalia (Figs 48–49; 57). Segment VIII with two pairs of coremata in intersegmental membrane grouped into clusters of oval and lanceolate scales, respectively. Uncus rather long moderately sclerotized lobe bearing several long setae; tegumen short, tunnel-shaped in natural position, posterior margin slightly sclerotized to membranous; uncus and tegumen loosely fused by very thin membrane, two very long and rather stout setae, each on dorsolateral corner of tegumen; pedunculi inconspicuous; beak-shaped setose valva strongly sclerotized and tapered from middle; setose, moderately sclerotized lobe (plate) connects internal base of valva with interior membrane; sacculus a distinct setose lobe; saccus almost as long as distance from anterior margin of vinculum to tip of valva, basally moderately broad, distally evenly tapered; phallus big, wedge-shaped in lateral view, terminated with unfinished circular hole; narrow slit parallel to the longitudinal axis extending from the top to about one-quarter where a strongly sclerotized transverse rib protrudes; vesica with number of small grains arranged in rows. Female genitalia.—Unknown. DIAGNOSIS.— E. gemerensis sp. nov. is characterized by having a black head and the antennae divided into a black basal part, ringed middle part and a greyish white apical part. It is similar to E. atrifrontella sp. nov. and to E. occidentella, but the latter has a lighter frons and differently ringed antennae. GENETIC DATA.—The intraspecific divergence of the barcode region is low, ranging from 0%– 0.16 % (average distance 0.1 %) (n = 3). The distance to the nearest neighbour E. libertinella is 6.14 %. DISTRIBUTION. So far known only from south-eastern central Slovakia. BIOLOGY. Host-plant and early stages unknown. The moths occur on xerothermic limestone slopes and have exclusively been collected at light. The flight-period falls between late May and early August. ETYMOLOGY. The name (an adjective) is derived from the noun Gemer—the name of an important tourist area that comprises both Slovak national parks, Slovenský kras (Slovakian karst) and Muránská planina (M. plateau), the only localities where the new species has been found.Published as part of Huemer, Peter, Elsner, Gustav & Karsholt, Ole, 2013, Review of the Eulamprotes wilkella species-group based on morphology and DNA barcodes, with descriptions of new taxa (Lepidoptera, Gelechiidae), pp. 69-100 in Zootaxa 3746 (1) on page 96, DOI: 10.11646/zootaxa.3746.1.3, http://zenodo.org/record/21962
B. Elsner, Porodicno pravo
No full textB. Elsner, Porodicno pravo. In: Revue internationale de droit comparé. Vol. 4 N°3, Juillet-septembre 1952. p. 624
B. Elsner, Porodicno pravo
No full textB. Elsner, Porodicno pravo. In: Revue internationale de droit comparé. Vol. 4 N°3, Juillet-septembre 1952. p. 624
On eigenvectors and adjoints of modified matrices
No full textElsner L, Rózsa P. On eigenvectors and adjoints of modified matrices. Linear and multilinear algebra. 1981;10(3):235-247
Convergence of sequential and asynchronous nonlinear paracontractions
No full textElsner L, Koltracht I, Neumann M. Convergence of sequential and asynchronous nonlinear paracontractions. Numerische Mathematik. 1992;62(1):305-319.We establish the convergence of sequential and asynchronous iteration schemes for nonlinear paracontracting operators acting in finite dimensional spaces. Applications to the solution of linear systems of equations with convex constraints are outlined. A first generalization of one of our convergence results to an infinite pool of asymptotically paracontracting operators is also presented
The Exocytosis of Lytic Granules Is Impaired in Vti1b- or Vamp8-Deficient CTL Leading to a Reduced Cytotoxic Activity following Antigen-Specific Activation
No full textDressel R, Elsner L, Novota P, Kanwar N, Fischer von Mollard G. The Exocytosis of Lytic Granules Is Impaired in Vti1b- or Vamp8-Deficient CTL Leading to a Reduced Cytotoxic Activity following Antigen-Specific Activation. JOURNAL OF IMMUNOLOGY. 2010;185(2):1005-1014
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