Results 51 to 60 of about 74,240 (211)
Advances in Difference Equations, 2021 In this paper, we consider a nonautonomous predator–prey model with Holling type II schemes and a prey refuge. By applying the comparison theorem of differential equations and constructing a suitable Lyapunov function, sufficient conditions that ...
Yumin Wu, Fengde Chen, Caifeng Du
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A Hochschild cohomology comparison theorem for prestacks [PDF]
Transactions of the American Mathematical Society, 2010 We generalize and clarify Gerstenhaber and Schack’s “Special Cohomology Comparison Theorem”. More specifically we obtain a fully faithful functor between the derived categories of bimodules over a prestack over a small category
Lowen, Wendy, VAN DEN BERGH, Michel
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A new proof of pick's theorem [PDF]
, 1974 Pick 's theorem states that , if f is a univalent analytic function on the open unit disk with f (0)=0 and f'(0)=1, and [equation].
Minsker, Steven
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AxiomsThis paper investigates the oscillatory behavior of solutions to fourth-order functional differential equations (FDEs) with multiple delays and a middle term.
Osama Moaaz +4 more
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An impossibility theorem for paired comparisons [PDF]
Central European Journal of Operations Research, 2018 18 pages, 4 ...
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A local strict comparison theorem and converse comparison theorems for reflected backward stochastic differential equations [PDF]
, 2007 A local strict comparison theorem and some converse comparison theorems are proved for reflected backward stochastic differential equations under suitable ...
Shanjian Tang +3 more
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Mathematische Annalen, 1986 Let X be any algebraic variety over \({\mathbb{C}}\). Then there is in a natural way associated to X a complex analytic space \(X_{an}\). Also for every coherent algebraic sheaf F on X there is an associated coherent analytic sheaf \(F_{an}\) on \(X_{an}\), and one has comparison maps \(\alpha_ i: H^ i(X,F)\to H^ i(X_{an},F_{an})\) on cohomology.
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Toponogov comparison theorem for open triangles [PDF]
, 2011 The aim of our article is to generalize the Toponogov comparison theorem to a complete Riemannian manifold with smooth convex boundary. A geodesic triangle will be replaced by an open (geodesic) triangle standing on the boundary of the manifold, and a ...
Kondo, Kei +3 more
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Comparison theorems for property (B) of the third-order differential equations with deviating arguments [PDF]
Opuscula MathematicaThe aim of this paper is to introduce a new comparison theorem (in both delayed and advanced cases) that allows us to investigate the properties of third-order differential equations with quasi-derivatives \[(r_1(t)(r_2(t)y'(t))')'-p(t)y(\tau(t))=0 ...
Jozef Džurina, Blanka Baculíková
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Positive solutions for generalized nonlinear logistic equations of superdiffusive type [PDF]
, 2011 We consider a generalized version of the p-logistic equation. Using variational methods based on the critical point theory and truncation techniques, we prove a bifurcation-type theorem for the equation. So, we show that there is a critical value lambda*>
PAPAGEORGIOU N. S. +5 more
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