担忧
发表于 2025-3-30 09:55:48
Generalized Zeros and Nonpositivity of Energy Functionals Associated with Half-Linear Even-Order Difgy functionals. We convert the investigated difference equation into a Hamiltonian type difference system and using this transformation we establish our main result which says that the existence of two (or more) generalized zeros of a solution of the investigated difference equation implies that the
PALMY
发表于 2025-3-30 16:06:57
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hauteur
发表于 2025-3-30 20:12:46
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minaret
发表于 2025-3-30 21:07:59
Nonstationarity of Stock Returnshe properties of stock returns are studied. Three experiments illustrate that: the nonstationarity of stock return can not be diversified with big portfolio; nonstationarity, which can explain the risk premium, is positively related to the investing period.
maverick
发表于 2025-3-31 02:30:19
Pricing Convertible Bonds with Credit Risks and Stochastic Interest Rates with jumps in interest rates make it hard to price convertible bonds and their derivatives. A novel mechanism is introduced to price a compound option on convertible bonds with default risks and stochastic interest rates.
切碎
发表于 2025-3-31 06:38:07
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仇恨
发表于 2025-3-31 10:28:23
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