In mathematical analysis, Krein's condition provides a necessary and sufficient condition for exponential sums { ∑ k = 1 n a k exp ⁡ ( i λ k x ) , a k...

Tannaka–Krein duality Krein–Milman theorem and Krein–Rutman theorem in functional analysis Krein space Krein's condition for the indeterminacy of the problem of...

energy Carleman's condition — condition guaranteeing that a measure is uniquely determined by its moments Krein's condition — condition that exponential...

other measures giving the same family of orthogonal polynomials (see Krein's condition). Koekoek et al. (2010) give in Section 14.27 a detailed list of the...

Cauliflower ear is an irreversible condition that occurs when the external portion of the ear is hit and develops a blood clot or other collection of...

Hamiltonian cycles. Biggs, Norman L. (1976), "Automorphic graphs and the Krein condition", Geometriae Dedicata, 5 (1): 117–127, doi:10.1007/BF00148146. Biggs...

generalization of the Fourier transform to noncommutative groups is Tannaka–Krein duality, which replaces the group of characters with the category of representations...

chain Quantum Markov chain Telescoping Markov chain Markov condition Causal Markov condition Markov model Hidden Markov model Hidden semi-Markov model...

This is because of the condition of semisimplicity which needs to be checked by the Maschke's theorem. Under Tannaka–Krein duality, every fusion category...

left half plane. Passing to the non-commutative setting, this motivates Krein's formula which parametrizes the extensions of partial isometries. The cumulative...

existence theorems for Riemann–Hilbert problems have been produced by Mark Krein, Israel Gohberg and others. Suppose that Σ {\displaystyle \Sigma } is a...

discovered (or rediscovered) almost simultaneously by mathematicians Mark Krein and collaborators as G-Hamiltonian[clarification needed] in the study of...

October 2021. Retrieved 6 October 2021. Kreins (2003), p.64 Michel Pauly, Geschichte Luxemburgs 2013 p.65 Kreins (2003), p. 66 Michel Pauly, Geschichte...

a measure μ {\displaystyle \mu } if and only if a certain positivity condition is fulfilled; namely, the Hankel matrices H n {\displaystyle H_{n}} ,...

prolonged hospital stay, and increased cost and mortality. Meddings J, Saint S, Krein SL, Gaies E, Reichert H, Hickner A, McNamara S, Mann JD, Mody L (May 2017)...

topological vector space is the closed convex hull of its extreme points (the Krein–Milman theorem). For example: A triangle in the plane (including the region...

Lipold, Marc Vincenc (1857). "Bericht über die geologischen Aufnamen in Ober-Krein im Jahre 1856". Jahrbuch der K. K. Geol. Reichsanstalt. Fitzko, F.; Suhadolc...

modern American society, often described as 'values', America's cultural condition was in decline with respect to the situations of 30 years ago, 1963. The...

linear operators on a Hilbert space. It was introduced independently by Mark Krein and Mark Krasnoselsky (1947), and Béla Szőkefalvi-Nagy (1946), in their...

{\displaystyle 1} . If A {\displaystyle A} has a multiplicative unit element this condition is equivalent to f ( 1 ) = 1 {\displaystyle f(1)=1} . For a representation...

Springer-Verlag, New York, 1997. Prop. III.5.1 I. C. Gohberg and M. G. Krein. Introduction to the Theory of Linear Non-selfadjoint Operators. American...

theory for locally compact groups is however much weaker than the Tannaka–Krein duality theory for compact topological groups or Pontryagin duality for...

accessed 29 March 2019; archived 25 March 2019. E. Bruce, R. Bendure, S. Krein, and N. Lighthizer, "Zoom in on Gonioscopy", Review of Optometry, 21 September...

Sc. 1956) who pioneered in the field of gene splicing; physician Howard Krein; and Louis Gluck (B.S. 1948) the "father of neonatology". Alumni prominent...

December 20, 2021. Krein, Kevin (September 19, 2023). "Album Review: Sydney Sprague Navigates the Anxieties of the Human Condition on 'somebody in hell...

coach/special teams – Pete Rodriguez Strength and conditioning Strength and conditioning – Dana LeDuc Assistant strength and conditioning – Darren Krein...

(1684) Siege of Luxembourg (1794–95) Fortresses of the German Confederation Kreins, Jean-Marie. Histoire du Luxembourg. 3rd edition. Paris: Presses Universitaires...

\varepsilon (h_{(1)})h_{(2)}=h=h_{(1)}\varepsilon (h_{(2)})} is a sufficient condition for the existence of the trivial module. It follows that in order for...

and positive semi-definite (p.s.d.) kernels, which do not impose this condition. Note that this is equivalent to requiring that every finite matrix constructed...

(subshifts of finite type); to economics (Okishio's theorem, Hawkins–Simon condition); to demography (Leslie population age distribution model); to social...