9,264 research outputs found
Period of the Ikeda type lift for
No full textIn our previous work, he second and the third named authors constructed the
Ikeda type lift for the exceptional group from an elliptic modular
cusp form. In this paper, we prove an explicit formula for the period or the
Petersson norm of the Ikeda type lift in terms of the product of the special
values of the symmetric square -function of the elliptic modular form.
There are similar works done by the first author with his collaborator, but
new technical inputs are required and developed to overcome some difficulties
coming from the hugeness of .Comment: 36 pages, the titles was change
The Anthropic Principle and the Ikeda Threshold Rule
No full textAfter a short digression into the anthropic principle I discuss the role of the
Ikeda threshold state in relation to the famous Hoyle state in 12C.
Ikeda–Nakayama Rings
No full textAbstractA ring R is called a right Ikeda-Nakayama ring (right IN-ring) if the left annihilator of the intersection of any two right ideals is the sum of the two left annihilators. In this paper we show that if R is a right IN-ring and A and B are right ideals of R that are complements of each other, there exists an idempotent e in R such that A=eR and B=(1−e)R. As a consequence we show that R is right selfinjective if and only if M2(R) is a right IN-ring. It is also shown that R is a dual ring if and only if R is a left and right IN-ring and the dual of every simple right R-module is simple. Finally, we prove that R is quasi-Frobenius if and only if R is a left perfect, left and right IN-ring, extending work on both selfinjective rings and dual rings. Several examples are provided to show that our results are non-trivial extensions of the known results on the subject
The Anthropic Principle and the Ikeda Threshold Rule
No full textAfter a short digression into the anthropic principle I discuss the role of the Ikeda threshold state in relation to the famous Hoyle state in 12C
The Anthropic Principle and the Ikeda Threshold Rule
No full textAfter a short digression into the anthropic principle I discuss the role of the Ikeda threshold state in relation to the famous Hoyle state in 12C
A U.S. Isolate of <i>Theileria orientalis</i> Ikeda Is Not Transstadially Transmitted to Cattle by <i>Rhipicephalus microplus</i>
No full textTheileria orientalis Ikeda has caused an epidemic of bovine anemia and abortion across several U.S. states. This apicomplexan hemoparasite is transmitted by Haemaphysalis longicornis ticks; however, it is unknown if other North American ticks are competent vectors. Since the disease movement is largely determined by the host tick range(s), the prediction of the T. orientalis spread among U.S. cattle populations requires determination of additional competent tick vectors. Although Rhipicephalus microplus has mostly been eradicated from the U.S., outbreaks in populations occur frequently, and the U.S. remains at risk for reintroduction. Since R. microplus is a vector of Theileria equi and T. orientalis DNA has been detected in R. microplus, the goal of this study was to determine whether R. microplus is a competent vector of T. orientalis. Larval R. microplus were applied to a splenectomized, T. orientalis Ikeda-infected calf for parasite acquisition, removed as molted adults, and applied to two T. orientalis naïve, splenectomized calves for transmission. After 60 days, the naïve calves remained negative for T. orientalis by PCR and cytology. Additionally, T. orientalis was not detected in the salivary glands or larval progeny of acquisition-fed adults. These data suggest that R. microplus is not a competent vector of the U.S. T. orientalis Ikeda isolate
Viscous forces on offshore structures and their effects on the motion of floating bodies
No full textIkeda two-dimensional cylinders
No full textThis data has been collected with manual digitalization from the following paper:
[1]
Ikeda, Y., 1978. On eddy making component of roll damping force on naked hull. University of Osaka Prefacture, Department of Naval Architecture, Japan, Report No. 00403, Published in: Journal of Society of Naval Architects of Japan, Volume 142.
The data can be used to predict ship eddy damping.
Nomenclature:
row number: same as in Table 1 [1]
phi_a : roll amplitude [rad]
B_star_hat
omega_hat
model : section model name
B_W+B_F : Obtained value from plots
B_E_star_hat
L_pp : length of section [m]
beam : section beam [m]
T : section draught [m]
Disp : section displacement [m^3]
H0 : half beam to draught ratio
sigma : section area coefficient
OG/d : centre of rotation
R : bilge radius [m]
B_E0_HAT : eddy damping
C_r : eddy damping coefficient
a_1 : lewis section coefficient
a_3 : lewis section coefficien
Combinatorial Aspects of the Ikeda Lift via Extended Gross-Keating Data
No full textThis thesis is motivated by the problem of studying the Ikeda lift via a converse theorem due
to R. Weissauer. We investigate a certain function; denoted by (; ), where is a positive
integer and is a symmetric positive-definite half-integral matrix; appearing in the Fourier
coefficient formulas of a linear version of the Ikeda lift due to W. Kohnen. We develop
new methods for computing (; ) via the extended Gross-Keating (EGK) datum of a
quadratic form and develop novel combinatorial interpretations for (; ) which involve
integer partitions with restrictions depending on the EGK datum attached to at each prime
Ikeda two-dimensional cylinders
No full textThis data has been collected with manual digitalization from the following paper:
[1]
Ikeda, Y., 1978. On eddy making component of roll damping force on naked hull. University of Osaka Prefacture, Department of Naval Architecture, Japan, Report No. 00403, Published in: Journal of Society of Naval Architects of Japan, Volume 142.
The data can be used to predict ship eddy damping.
Nomenclature:
row number: same as in Table 1 [1]
phi_a : roll amplitude [rad]
B_star_hat
omega_hat
model : section model name
B_W+B_F : Obtained value from plots
B_E_star_hat
L_pp : length of section [m]
beam : section beam [m]
T : section draught [m]
Disp : section displacement [m^3]
H0 : half beam to draught ratio
sigma : section area coefficient
OG/d : centre of rotation
R : bilge radius [m]
B_E0_HAT : eddy damping
C_r : eddy damping coefficient
a_1 : lewis section coefficient
a_3 : lewis section coefficien
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