• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2010.11a
• /
• pp.55-56
• /
• 2010

• Journal of Drive and Control
• /
• v.1 no.3
• /
• pp.47-56
• /
• 2004

• Bulletin of the Korean Mathematical Society
• /
• v.56 no.2
• /
• pp.501-504
• /
• 2019

In this note, we prove that Gluck's conjecture, Isaacs-Navarro-Wolf Conjecture and Taketa's inequality are true for solvable groups whose character graphs having diameter 3.

• Bulletin of the Korean Mathematical Society
• /
• v.56 no.2
• /
• pp.351-364
• /
• 2019

We derive full closed-form expressions for the prices of European symmetric power quanto call options with four different forms of terminal payoffs under the assumption of the classical lognormal asset price and exchange rate model.

• Bulletin of the Korean Mathematical Society
• /
• v.56 no.2
• /
• pp.319-331
• /
• 2019

On the weighted Dirichlet space, by the Sobolev's embedding theorem, we characterize the compactness for operators which are finite sums of products of several Toeplitz operators. Moreover, the essential spectrum of Toeplitz operator is characterized.

• Bulletin of the Korean Mathematical Society
• /
• v.56 no.1
• /
• pp.103-110
• /
• 2019

In this paper, we give a characterization of prime submodules of an injective module over a Noetherian ring.

• Bulletin of the Korean Mathematical Society
• /
• v.56 no.5
• /
• pp.1341-1353
• /
• 2019

For complete Riemannian manifolds with vanishing Bach tensor and positive constant scalar curvature, we provide a rigidity theorem characterized by some pointwise inequalities. Furthermore, we prove some rigidity results under an inequality involving $L^{\frac{n}{2}}$-norm of the Weyl curvature, the traceless Ricci curvature and the Sobolev constant.

• Bulletin of the Korean Mathematical Society
• /
• v.56 no.1
• /
• pp.73-82
• /
• 2019

We consider Riemann surfaces with three or four symmetries, assuming that they have a maximal total number of ovals and find all the possible topological types of the symmetries realizing such a configuration.

• Bulletin of the Korean Mathematical Society
• /
• v.56 no.3
• /
• pp.555-561
• /
• 2019

In this paper we consider degenerate compressible Navier-Stokes equations giving rise to a variety of mathematical problems in many areas. We study the long time behavior for the degenerate compressible Navier-Stokes equations with damping.

• Bulletin of the Korean Mathematical Society
• /
• v.56 no.3
• /
• pp.675-680
• /
• 2019

We, in this note, decompose the invariant Laplacian of the unit complex ball of ${\mathbb{C} }^n$ by the radial part and tangential part as ${\tilde{\Delta}}={\tilde{\Delta}}_{rad}+{\tilde{\Delta}}_{tan}$. We give several properties and interpretations involved with this decomposition.